I'm in need of HHO check valves for my system. The current check valve I'm using just isn't doing the trick. I visited the websites from a search of "check valve" of this website, and I also ran across criticisms of prior purchased check valves that have broken. I want to buy the correct ones from the start. USPlastics.com has some that lift as low as 0.5 psi, but I did a search on ebay and they have quite a few of various check valves on there.
Some questions I have are...
Do you run the check valve in line from the reservoir to the bubbler, or do you "T" it? "T"ing it would allow a more unrestricted flow.
Does anyone run a second check valve between the reservoir and cell influent, to guard against backflow?
Lastly, whats best, polyehtylene or neoprene? I believe it was the poly that was guilty of cracking, but I could be wrong.
Thanks ahead for the inputs,
bigjim56