| Re: How to test Sodalime ?
1. With such a simple horizontal scrubber, tunnelling is likely to bite sooner or later. Better to take a commercial scrubber, or copy a commercial scrubber, keep it in the orientation it is designed for. That way, you also know the scrubber life. OR, use an Extend Air cartridge, that way you do not need a scrubber canister at all in your design (just clamp the tube to it).
2. That bayonet fitting, if it comes loose will kill you quite quickly. Again, using a commercial scrubber avoids this. It is surprising what boats can make come loose. Better still, the Extend Air canister.
3. If you use an inner tube, put it in something. The sun does a lot of damage to rubber, and wrecks/coral even more so. Breathing from an inner tube does not sound wonderful either. Silicone water containers are much better. Remember, what grows on the inside of that inner tube, can find a way of getting to your lungs one way or the other, no matter how you clean the unit (apart from an autoclave, which for rubber would not be too good).
4. How are you going to measure the PPO2? There are some nice 4x sensor boxes on this forum.
Cheers,
Alex |