Trip report Littlehampton The Albair and an unknown

Mark Chase · 25th May 2007, 12:05

Delta Diaries Day 1 The Albeit

OK I probably spelt it wrong but its Albert in French.

I won’t go into great detail on this as I have some picks coming that will make for a more detailed article.

So thanks to a last min rescue gas supply from the lovely Lesley I am good to go. Then the phone rings and a distraught Simon tells me he’s filled the car with petrol but it’s a diesel so this is a bad thing. Then he tells me he was on the way to the airport to fly home which is a very very bad thing and he’s not coming.

Gutted, its was day ja voo of Andyp canning the first Delta gig of the year  Ho hum. So I make the 5am treck down to Little Hampton alone and get the usual flack from the lads about no one wanting to dive with me. But hey the sea is flat and the sun is shining so sod it what do I care.

The Albeit is about 3-4 hours out. So kit prepped we all went to sleep.

Last dive on this wreck we (Me T and the Doctor (TD) ) found the engine room telegraph but it was impossible to move with a standard crow bar. This time “The Doctor” proscribed a 6ft 14lb crow bar and a pair of bolt croppers to solve the problem

I was to lay the line and stick with TD and T was going to make sure we were OK then go of exploring. We struggled down to 65 against a bit of tide on the shot and DT/T tied in whilst I got the reel sorted. Viz was a good 5-6m but it was a little gloomy. We set off to the right but T quickly assessed it was the wrong way and we turned and headed back to the shot. Shortly past this we dropped on to the sea bed and I recognised the engine room fro the previous dive. We were sure we were in the right spot but we were struggling to find the telegraph. I must have been looking straight at it but missed it when finally TD got out the 6ft bar and set to work

I didn’t want to screw up so I held back and just provided light. Once out the cloud of silt made things awkward but TD did an amazingly efficient job of separately bagging up both bits. I considered sending up the crow bar and bolt croppers with my lift bag but I didn’t want to make a mistake so I left it to TD to let me know what he wanted me to do. This was to result in another slagging when I got back on the boat

“You could have helped by sending the tools up you git” said ‘T’. Ho hum but no slagging about my line laying so that’s an improvement

Heading back up into clear water I went over an area of small brass keys locks broken china and port whole glass. Looking at my deco commitment I was up for a two and a half hour run time in 11c water so I quickly grabbed a couple of intact porthole glass and legged it for the shot.

We were last but one out and the ascent went OK all but an interesting buoyancy moment at 9m details of which ill leave out to protect the guilty

The trip home was all about planning day two. We could do the Empire Javelin which we know to be a superb wreck orrrrr we could do a total unknown a long way out and take advantage of the glass like sea.

No contest the unknown has it in spades.

Simon is due to pick me up at 5:30. I switch my phone on at 5:15 and there is a message to say he has broken down????? Is it me? Does no body want to dive with me ?

The thought of the monumental slagging I was going to get from ‘T’ and Don John spurred me into action and the Jeep was loaded in 10 seconds flat and I hit an all time new top speed in the 2ton diesel heading to get Simon.

We tied on the rope then I proceeded to tow him at up to 50mph to a nearby car park. Shortly after Simon commented that he had never been towed before and doing 50mph 10ft from the car in front with no servo on the breaks was an enlightening experience. Little did he know I was just softening him up a bit for the next phase.

79miles its 5:50am the boat leaves at 7:30 and we are in a two ton diesel 4X4.
We arrived at 7:15

Simon was looking older and wiser but we were other wise unscathed.

Kit on the boat and we settle back to enjoy the most magnificent sea conditions:

The trip out was heaven. TD demoed the DIR way of mounting strobes and cutting tools.

Having carried out the challenging task of getting a shot on a well broken wreck in 55m of water, it was a bit worrying to note the local shipping traffic right on top of us

A few questions were asked on the exact draught of a ferry

Simon ready to go:

Simon and I were in second and Simon was doing the line as I was taking photos. Viz was excellent, probably 10m. The wreck was a wooden sailing ship circa 1850ish. This was decided based on the presence of many “dead eye” rope bearings compared to what metal we found. The extensive wear on the dead eyes lead TD and T to suspect it went down around the turn of the century.

I have never seen so many Conga on a wreck. They were every where and they were massive. Hears a small one

We soon came across T and TD (first in) bagging up a dead eye and a chunk of the ship it was mounted on

Sadly my camera had no batteries for the flash so ambient light shots only. Also I had a problem in that the wide angle lens was screwed into an adaptor but the adaptor wouldn’t totally fill with water so I had a tide mark going across the lens. I wiggled and jiggled it but it was not easy so some of the pics have a funny shadow in the middle.

Simon managed to find a porthole and soon I had another lifting event to photograph

I grabbed a modest lobster to appease the wife god and content my self with taking picks.

We were willing to stay longer but the tide was getting irritating and we were near the shot and it was obvious we were last out (only two strobes left) so we went home with 40ish on the clock

Deco was deco. Hers the profile for the interested. It’s my usual granddad ascent. A busy deco bar meant I was practicing some free swimming deco and I was kept company by my MP3 player for the duration.

Back on board and its pic time again. Well done Simon on his first brass backed Porthole.

A great trip some great diving. The second wreck is unlikely to have ever been dived so it was a privilege to be there. It’s unlikely we will go back to her again because there are better wrecks but that’s what diving marks is all about.

ATB

Mark Chase

aldive · 25th May 2007, 13:06

Nice write up, I assume you were just out with Paul the last couple of days.

We are supposed to be going out with Paul on Sunday doing the Russian Freighter, but looks like the weather isn't going to play ball

Mark Chase · 25th May 2007, 14:09

Quote: (Originally Posted by aldive)

Nice write up, I assume you were just out with Paul the last couple of days.

We are supposed to be going out with Paul on Sunday doing the Russian Freighter, but looks like the weather isn't going to play ball

Yes it was with Paul

Sorry about Sunday m8

I am looking for a buddy to dive with this group on the 20 21 22
on Pamela P. Depth is likely to be 60-70m deeper is a possibility but unlikley.

It will be max 8 on the boat and long range and the costs will reflect this. These are return to deco station ONLY dives. Bagging off is NOT an option. Line laying skills are esential.

You will be diving with me and we will be told when we are going in (usualy second and connecting the station because I tend to do the longest bottom time and deco combination) I run 10/85 deco schedules and the divers do not leave the water alone so you stay with your buddy for the whole of deco. Dive time is likely to be 2 hours plus and unlikely to be more than three.

Sounds draconian but its not just simple safety standards we stick too.

If any one is interested let me know.

ATB

Mark Chase

Ben Field · 28th May 2007, 08:54

Nice report, no CCR failures for a change, I wonder why?

Nice to see the Shearwater traces, haven't taken mine to such depths yet... bit of regular loop flushing on deco or leaky mask? :-)

Mark Chase · 28th May 2007, 09:29

Quote: (Originally Posted by Ben Field)

Nice report, no CCR failures for a change, I wonder why?

Nice to see the Shearwater traces, haven't taken mine to such depths yet... bit of regular loop flushing on deco or leaky mask? :-)

No M8 just numptie dive skills on a MCCR

I am trying to run minimum loop volume but every now and then I take a breath which hits the adv and the 18/45dill sends the PP02 on the chart crashing down as it blows across the sensors.

Pretty much all the sudden down spikes on the chart are me hitting the adv.

Last dive i over reacted with the 02 inject but now I am waiting a second before i hit the inject button.

Ill get used to it and it doesn't bother me but its not easy (yet) to keep a nice track on the PP02. Id love to see a Shearwater print out of a Vision or Classic profile to see how well a ECCR copes.

Lets face it the PP02 goes up and down all the time on OC an we don't mind. It doesn't seem to affect the deco much as despite running 10/85 GF I am still running shorter deco than the VR3 on my M8s fixed set point.

ATB

Mark Chase

decoweenie · 28th May 2007, 11:59

Quote: (Originally Posted by Mark Chase)

...Id love to see a Shearwater print out of a Vision or Classic profile to see how well a ECCR copes.

I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week.

It is not on a Vision or Classic controller, but on the Shearwater controller, if you are interested.

Hopefully I will be able to convince our group and Rich Clark's group to combine our dive reports into an article about diving the Empress off the East coast of Malaysia.

Peter (PCDiver) was The Stud of the trip and carried his humongous HDV video camera on 90% of the dives and got great video footage in/outside the wreck.

Ben Field · 28th May 2007, 12:19

Quote: (Originally Posted by decoweenie)

I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week.

Just a quick note to say that the download software was a breeze to get and pay for, the password turned up in seconds in my mail and I was downloading after about 10minutes!

Ross obviously has his Sh*t together IMO

Mark Chase · 28th May 2007, 13:10

Quote: (Originally Posted by decoweenie)

I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week.

It is not on a Vision or Classic controller, but on the Shearwater controller, if you are interested.

Hopefully I will be able to convince our group and Rich Clark's group to combine our dive reports into an article about diving the Empress off the East coast of Malaysia.

Peter (PCDiver) was The Stud of the trip and carried his humongous HDV video camera on 90% of the dives and got great video footage in/outside the wreck.

Yes Id be very interested, it sounds great.

ATB

Mark Chase

decoweenie · 30th May 2007, 09:47

Quote: (Originally Posted by Mark Chase)

Mark,

Above is one of the PO2 traces (green curve) from your dive report.

And below is one of the dives we did on the Repulse (i.e. similiar depth)

I chose this particular dive since we fluctuated the depth quite a bit swimming from the bow to stern to look at the props, then recovered a lost anchor (from another dive boat, not artifact from Repulse) on the swim back.

Despite the depth fluctuation, the Shearwater controller maintained a pretty steady SP (i.e. 1.3) throughout the entire dive.

Bruce uses his proprietary injection algorithm that is supposed to keep the SP very steady. I do like it for the bottom portion where I am working more, but not as much for the ascent or deco phases, just IMHO...

I don't have any traces of my loop PO2 when I was diving the KISS units, but I don't believe mine was fluctuating as much as yours has (i.e. 0.5 PO2 nominally) even at constant depth.

Thus, you might need to check the flow rate on your orifice as it could be too slow and you failed to monitor and add O2 as often as you should (?)

.

Mark Chase · 30th May 2007, 10:29

Quote: (Originally Posted by decoweenie)

Mark,

Above is one of the PO2 traces (green curve) from your dive report.

And below is one of the dives we did on the Repulse (i.e. similiar depth)

I chose this particular dive since we fluctuated the depth quite a bit swimming from the bow to stern to look at the props, then recovered a lost anchor (from another dive boat, not artifact from Repulse) on the swim back.

Despite the depth fluctuation, the Shearwater controller maintained a pretty steady SP (i.e. 1.3) throughout the entire dive.

Bruce uses his proprietary injection algorithm that is supposed to keep the SP very steady. I do like it for the bottom portion where I am working more, but not as much for the ascent or deco phases, just IMHO...

I don't have any traces of my loop PO2 when I was diving the KISS units, but I don't believe mine was fluctuating as much as yours has (i.e. 0.5 PO2 nominally) even at constant depth.

Thus, you might need to check the flow rate on your orifice as it could be too slow and you failed to monitor and add O2 as often as you should (?)

.

Yeahhh thats what i thaught, a prety tight line. Ill be interested to see how/ if i improve with experiance on the unit.

Thanks for posting this.

ATB

Mark Chase

25th May 2007, 12:05	#1 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Trip report Littlehampton The Albair and an unknown Delta Diaries Day 1 The Albeit OK I probably spelt it wrong but its Albert in French. I won’t go into great detail on this as I have some picks coming that will make for a more detailed article. So thanks to a last min rescue gas supply from the lovely Lesley I am good to go. Then the phone rings and a distraught Simon tells me he’s filled the car with petrol but it’s a diesel so this is a bad thing. Then he tells me he was on the way to the airport to fly home which is a very very bad thing and he’s not coming. Gutted, its was day ja voo of Andyp canning the first Delta gig of the year  Ho hum. So I make the 5am treck down to Little Hampton alone and get the usual flack from the lads about no one wanting to dive with me. But hey the sea is flat and the sun is shining so sod it what do I care. The Albeit is about 3-4 hours out. So kit prepped we all went to sleep. Last dive on this wreck we (Me T and the Doctor (TD) ) found the engine room telegraph but it was impossible to move with a standard crow bar. This time “The Doctor” proscribed a 6ft 14lb crow bar and a pair of bolt croppers to solve the problem I was to lay the line and stick with TD and T was going to make sure we were OK then go of exploring. We struggled down to 65 against a bit of tide on the shot and DT/T tied in whilst I got the reel sorted. Viz was a good 5-6m but it was a little gloomy. We set off to the right but T quickly assessed it was the wrong way and we turned and headed back to the shot. Shortly past this we dropped on to the sea bed and I recognised the engine room fro the previous dive. We were sure we were in the right spot but we were struggling to find the telegraph. I must have been looking straight at it but missed it when finally TD got out the 6ft bar and set to work I didn’t want to screw up so I held back and just provided light. Once out the cloud of silt made things awkward but TD did an amazingly efficient job of separately bagging up both bits. I considered sending up the crow bar and bolt croppers with my lift bag but I didn’t want to make a mistake so I left it to TD to let me know what he wanted me to do. This was to result in another slagging when I got back on the boat “You could have helped by sending the tools up you git” said ‘T’. Ho hum but no slagging about my line laying so that’s an improvement Heading back up into clear water I went over an area of small brass keys locks broken china and port whole glass. Looking at my deco commitment I was up for a two and a half hour run time in 11c water so I quickly grabbed a couple of intact porthole glass and legged it for the shot. We were last but one out and the ascent went OK all but an interesting buoyancy moment at 9m details of which ill leave out to protect the guilty The trip home was all about planning day two. We could do the Empire Javelin which we know to be a superb wreck orrrrr we could do a total unknown a long way out and take advantage of the glass like sea. No contest the unknown has it in spades. Simon is due to pick me up at 5:30. I switch my phone on at 5:15 and there is a message to say he has broken down????? Is it me? Does no body want to dive with me ? The thought of the monumental slagging I was going to get from ‘T’ and Don John spurred me into action and the Jeep was loaded in 10 seconds flat and I hit an all time new top speed in the 2ton diesel heading to get Simon. We tied on the rope then I proceeded to tow him at up to 50mph to a nearby car park. Shortly after Simon commented that he had never been towed before and doing 50mph 10ft from the car in front with no servo on the breaks was an enlightening experience. Little did he know I was just softening him up a bit for the next phase. 79miles its 5:50am the boat leaves at 7:30 and we are in a two ton diesel 4X4. We arrived at 7:15 Simon was looking older and wiser but we were other wise unscathed. Kit on the boat and we settle back to enjoy the most magnificent sea conditions: The trip out was heaven. TD demoed the DIR way of mounting strobes and cutting tools. Having carried out the challenging task of getting a shot on a well broken wreck in 55m of water, it was a bit worrying to note the local shipping traffic right on top of us A few questions were asked on the exact draught of a ferry Simon ready to go: Simon and I were in second and Simon was doing the line as I was taking photos. Viz was excellent, probably 10m. The wreck was a wooden sailing ship circa 1850ish. This was decided based on the presence of many “dead eye” rope bearings compared to what metal we found. The extensive wear on the dead eyes lead TD and T to suspect it went down around the turn of the century. I have never seen so many Conga on a wreck. They were every where and they were massive. Hears a small one We soon came across T and TD (first in) bagging up a dead eye and a chunk of the ship it was mounted on Sadly my camera had no batteries for the flash so ambient light shots only. Also I had a problem in that the wide angle lens was screwed into an adaptor but the adaptor wouldn’t totally fill with water so I had a tide mark going across the lens. I wiggled and jiggled it but it was not easy so some of the pics have a funny shadow in the middle. Simon managed to find a porthole and soon I had another lifting event to photograph I grabbed a modest lobster to appease the wife god and content my self with taking picks. We were willing to stay longer but the tide was getting irritating and we were near the shot and it was obvious we were last out (only two strobes left) so we went home with 40ish on the clock Deco was deco. Hers the profile for the interested. It’s my usual granddad ascent. A busy deco bar meant I was practicing some free swimming deco and I was kept company by my MP3 player for the duration. Back on board and its pic time again. Well done Simon on his first brass backed Porthole. A great trip some great diving. The second wreck is unlikely to have ever been dived so it was a privilege to be there. It’s unlikely we will go back to her again because there are better wrecks but that’s what diving marks is all about. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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25th May 2007, 13:06	#2 (permalink)
aldive New Member Current Rebreather/s: Megalodon Classic Kiss Other Rebreather/s: Join Date: May 2006 Location: London Posts: 9	Re: Trip report Littlehampton The Albair and an unknown Nice write up, I assume you were just out with Paul the last couple of days. We are supposed to be going out with Paul on Sunday doing the Russian Freighter, but looks like the weather isn't going to play ball
(Offline)

25th May 2007, 14:09	#3 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by aldive) Nice write up, I assume you were just out with Paul the last couple of days. We are supposed to be going out with Paul on Sunday doing the Russian Freighter, but looks like the weather isn't going to play ball Yes it was with Paul Sorry about Sunday m8 I am looking for a buddy to dive with this group on the 20 21 22 on Pamela P. Depth is likely to be 60-70m deeper is a possibility but unlikley. It will be max 8 on the boat and long range and the costs will reflect this. These are return to deco station ONLY dives. Bagging off is NOT an option. Line laying skills are esential. You will be diving with me and we will be told when we are going in (usualy second and connecting the station because I tend to do the longest bottom time and deco combination) I run 10/85 deco schedules and the divers do not leave the water alone so you stay with your buddy for the whole of deco. Dive time is likely to be 2 hours plus and unlikely to be more than three. Sounds draconian but its not just simple safety standards we stick too. If any one is interested let me know. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Offline)

28th May 2007, 08:54	#4 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,627	Re: Trip report Littlehampton The Albair and an unknown Nice report, no CCR failures for a change, I wonder why? Nice to see the Shearwater traces, haven't taken mine to such depths yet... bit of regular loop flushing on deco or leaky mask? :-) __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

28th May 2007, 09:29	#5 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by Ben Field) Nice report, no CCR failures for a change, I wonder why? Nice to see the Shearwater traces, haven't taken mine to such depths yet... bit of regular loop flushing on deco or leaky mask? :-) No M8 just numptie dive skills on a MCCR I am trying to run minimum loop volume but every now and then I take a breath which hits the adv and the 18/45dill sends the PP02 on the chart crashing down as it blows across the sensors. Pretty much all the sudden down spikes on the chart are me hitting the adv. Last dive i over reacted with the 02 inject but now I am waiting a second before i hit the inject button. Ill get used to it and it doesn't bother me but its not easy (yet) to keep a nice track on the PP02. Id love to see a Shearwater print out of a Vision or Classic profile to see how well a ECCR copes. Lets face it the PP02 goes up and down all the time on OC an we don't mind. It doesn't seem to affect the deco much as despite running 10/85 GF I am still running shorter deco than the VR3 on my M8s fixed set point. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Offline)

28th May 2007, 11:59	#6 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by Mark Chase) ...Id love to see a Shearwater print out of a Vision or Classic profile to see how well a ECCR copes. I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week. It is not on a Vision or Classic controller, but on the Shearwater controller, if you are interested. Hopefully I will be able to convince our group and Rich Clark's group to combine our dive reports into an article about diving the Empress off the East coast of Malaysia. Peter (PCDiver) was *The Stud* of the trip and carried his humongous HDV video camera on 90% of the dives and got great video footage in/outside the wreck. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM Last edited by decoweenie : 28th May 2007 at 12:03.
(Offline)

28th May 2007, 12:19	#7 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,627	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by decoweenie) I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week. Just a quick note to say that the download software was a breeze to get and pay for, the password turned up in seconds in my mail and I was downloading after about 10minutes! Ross obviously has his Sht together IMO __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM!* Beware Fridge Suck! www.hugsac.org.uk
(Online)

28th May 2007, 13:10	#8 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by decoweenie) I need to get off my booties and get Ross' software to download the Shearwater dive profiles of our South China trip last week. It is not on a Vision or Classic controller, but on the Shearwater controller, if you are interested. Hopefully I will be able to convince our group and Rich Clark's group to combine our dive reports into an article about diving the Empress off the East coast of Malaysia. Peter (PCDiver) was *The Stud* of the trip and carried his humongous HDV video camera on 90% of the dives and got great video footage in/outside the wreck. Yes Id be very interested, it sounds great. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Offline)

30th May 2007, 10:29	#10 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Trip report Littlehampton The Albair and an unknown Quote: (Originally Posted by decoweenie) Mark, Above is one of the PO2 traces (green curve) from your dive report. And below is one of the dives we did on the Repulse (i.e. similiar depth) I chose this particular dive since we fluctuated the depth quite a bit swimming from the bow to stern to look at the props, then recovered a lost anchor (from another dive boat, not artifact from Repulse) on the swim back. Despite the depth fluctuation, the Shearwater controller maintained a pretty steady SP (i.e. 1.3) throughout the entire dive. Bruce uses his proprietary injection algorithm that is supposed to keep the SP very steady. I do like it for the bottom portion where I am working more, but not as much for the ascent or deco phases, just IMHO... I don't have any traces of my loop PO2 when I was diving the KISS units, but I don't believe mine was fluctuating as much as yours has (i.e. 0.5 PO2 nominally) even at constant depth. Thus, you might need to check the flow rate on your orifice as it could be too slow and you failed to monitor and add O2 as often as you should (?) . Yeahhh thats what i thaught, a prety tight line. Ill be interested to see how/ if i improve with experiance on the unit. Thanks for posting this. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Offline)

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