Which BOV (OC/CC DSV)...

Padowan

Looking at getting an OC/CC DSV for my YBOD

The options I see available are:

• KISS
• NemoTech (Filip Krolak's)
• Bob Howell
• Divematics

Have seen and played with a KISS one - which I liked the action of (in shallow water anyway) but I think a front facing lever might be more 3rd party friendly. Also saw a thread on here about someone swapping out the flapper valves to Inspo ones for an improved WOB, so is WOB an issue with the KISS one?
Have also seen a Bob Howell one - which I felt was a tad bulky, but otherwise seems OK.
Not seen either of the others in the flesh, so have no idea what they're like, only what I've seen in pictures. If there are some other obscure models I've not mentioned any suggestions are appreciated.

So what's the concensus on the best one to get, taking into consideration price, action, WOB, availability, servicibility, robustness, spares, ease of fitting to the YBOD, 2nd stage choise etc.

If someone has one that they might be prepared to part with, perhaps we could come to a deal....

Simon

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montyg

I did see the OC/CC DSV for the RB80 in a price list last year as a seperate part. Dave Sutton had one for sale - he said it uses a Scubapro 2nd stage's insides for the OC part ...

pchanning

Hi Simon,

I think you'll find that there are some fans of the Divematics on this board, and for us UK customers the biggest drawback is the price. You can get it with a cold-water reg, as he builds whatever you want - poss an ATX200 as servicing, parts, performance are cheap and readily available here. I', sure he'll incorporate a second hand reg if you post it over, so you cant get much better than that.

A way to get round HMC&E is to ship it to a divecentre youre friendly with outside the EU, (Red Sea somewhere) go there for a holiday, fit the mouthpiece, scratch it up a bit and, voila, waltz back through Customs scott free.

I know someone who has a brand new KISS mouthpiece that he may part with. An issue with fitting the KISS to an Inspiration is the need for converters, they are expensive, apart from adding more delrin to the loop, and may put the price closer to a DSV of your design.

Just my ppo2, I'm sure other OC/CC converts on the is board will confim that once you have one you wont to get rid of it.

I have a Divematics one, you welcome to have a go, in fact Falmouth in a couple of weeks. C U there.

cheers

paul

nmanfield

A way to get round HMC&E is to ship it to a divecentre youre friendly with outside the EU, (Red Sea somewhere) go there for a holiday, fit the mouthpiece, scratch it up a bit and, voila, waltz back through Customs scott free.



I may be wrong here but as I am aware the cost of importing dive equipment to Egypt is very high (at least that's what people selling slime will tell you!). So it's a case whether UK or Egyptian customs grabs you AFAIK.

As Simon knows well, I've got one of Philip's OC/DSVs and as he is doubly aware I've had it for a year and not used it. I would say that the delivery time is very long and the payment process APITA. It looks and feels very well made though I think I need a visit to the gym to be able to turn it on and off. Anyone else found this problem or is it just a case of regreasing (if so what sort) or any other cunning ploy that needs to be used ?

I'll be using it in a couple of weeks (well, hopefully not having to use it but testing it out) when I go on my hols and I'll post my thoughts on the list.

Drmike

• KISS -available, afordable and good
• NemoTech (Filip Krolak's) -dont hold your breath for delivery (this may have changed now?)
• Bob Howell - unavailable?
• Divematics -expensive - good

Id go with the KISS OC/CC if I was buying one.

caveseeker7

Jetsam is working on a new, moulded OC/DSV.
I would certainly wait for that as Gordon has a way of improving even good things.
Also, check if the Jetsam QC will fit the YBOD hoses. In that case you'll just have to get the hose-mounted connectors, too (which may well be part of it ).
That would probably be the most cost effective import solution.

The Divematics OC/DSV is very nice but likely quite a bit more expensive with the matching connectors.

Or search through the threads here, I'm positive I saw a Jetsam DSV with YBOD connectors for sale somewhere.

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Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority,
and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"

Andy Del

Yessss... Gordon has a way of improving anything I have on my . (displays, hose connectors, and now the DSV... ) FWIW, his DSV is fine to use for sanity breaths, and having tried it, works OK at 74m.

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Yellow - the colour of greatness!

Mdemon

There are still Bob's around and I know of a source... £300ish?

I have one. It is bulky but simple and well-made. (Like me! LOL! )

The routing of the reg hose is a pain but that's the same with all of them I guess. Bob's swivels which helps a wee bit. The Dacor Vyper reg is acceptable breath-wise.

It's great - other than the weight I'm very happy. It is robust and that's important. If it's your primary and secondary airsource, you don't want it falling to bits, which has happened to someone I know...

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"small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!"

The WRONG Attitude will get you killed.

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caveseeker7

Simon, just to make sure you have pleasant dreams over the weekend I placed a couple of images of Divematics' OC/CC DSV in the gallery .

This one has the Oceanic second stage with a hose swivel mounted which makes one very tidy combo.



Side views etc in the gallery. The plexi bits with the bungee by the way loop around the counterlung to keep the hoses low without adding weights.

__________________
Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority,
and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"

Skipbreather

Folks, you’re overlooking another obvious source beyond the four mentioned. Sadly, I believe it may actually be only 3 since rumors have it that Bob Howell has pretty much been beaten about the head and shoulders by government bureaucrats into ceasing commercial production. Hopefully I’m wrong about that.

Fortunately, in the USA at least, there aren’t any SCUBA police- yet. It’s still legal to dive any bit of kit you choose to build yourself. I chose to design and build my own OC/ CC DSV, and I’m very pleased with the result. Granted, not everyone has a lathe in their basement, but I find it difficult to believe that out of all the members of this board, only the four gentlemen listed- all making great kit- have those abilities. Guys, where’s your creativity?

What you see in the pictures was built using a 63 year old South Bend 9 inch lathe, an ancient drill press, and a Dremel tool (the brand logo was stuck on in jest). That’s it. The diaphragm/ exhaust valve & cover were salvaged from a corroded out Zeagle Octo +. The OC guts were stolen out of a Sherwood square octopus. The one way valves came from Divematics. After that comes thought, patience, and close attention to detail- and I do mean CLOSE. Biggest thing I learned in the process was that the tolerance for fit of the spool to body was less than 0.001 inch if I expected to get a good negative pressure check.

One other thing going on in the pictures that may not be readily apparent is the quick disconnect attaching the OC supply hose to the DSV. I’ve not seen anything like it for sale anywhere. It is ultra simple to build and makes disassembly and cleaning of Rebreather hose/ DSV assembly much easier. It is just a 1 ¼” long piece made from ½” diameter 360 brass stock rod. One end is machined to duplicate the end of the hose that mates to the second stage. The other end is machined to duplicate the Zeagle/ Apex quick disconnect that is used on the Zeagle Octo +. It is secured to the DSV with a nut from a discarded second stage hose. A standard Octo + supply hose feeds the DSV and just pops off when it’s time to disassemble & clean.

As I said, I realize not everyone has the tools/ ability to build these sorts of things, but hopefully I’ve gotten the creative wheels turning in those of you who do- and in those who want to learn. Let the Derlin & brass chips fly!

Oh, and yes, that IS a Mark Munroe unit replacing my stock secondary!

Ken Swain

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