I was just looking all over the internet and no one can give me a straight answer, people say stuff that in theory the z-valve works, or random people think that it makes sense so they agree. Well, has anyone that actually used the z-valve on the classic valve know if these things work?
I was looking at them, they sound ok, but they also seem kinda fishie (not like the piranha, sorry bad joke).
I was looking at them, they sound ok, but they also seem kinda fishie (not like the piranha, sorry bad joke).





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