Diffuser

[Piyo]

Hi all i have a problem with my diffuser. I off my C02 set in the night, and the next morning i will find my diffuser full of water from my tank... is there anyway to prvent this? i am already using a check valve.... but it seems that it does not work.... hope i can get some advice thanx

[Simon]

i think yr check valve aint working

[vinz]

Ummmm... My impression has always been that the check valve allows gases thru bothways and not liquid. So it's quite possible that the water pressure can push the gas back along the tube, provided the gas pressure in the tube allows it to be pushed back. Please correct me if I'm wrong.

So how did the pressure in your air tube drop so much that water can fill up your diffusor? I can think of 2 things:
a) The CO2 in the diffusor dissolved into the water thru the night, thus reducing pressure and allowing water to seep in.
b) There is a leak in your CO2 setup. Either your air tube is not suitable for CO2, one of the joints along the way is not air tight or something else in the line has a very small leak. I had a leaking el-cheapo bubble counter before.

Anybody with similar experience? Maybe this is normal (I don't use diffusors)?

[Goondoo]

I always thought it was normal? My diffuser got water inside there too and its working perfectly. Anyway, can't figure out how this is related to check valve.

[Piyo]

thanx all for the reply, the fault might be my bubble counter... will check it out tonight and see how i don't think is my check valve not working because i tested it and it don't allow water to flow back... gas? i can't test it.. will try to tighten all the joins of the tubes and get back to this thrend again

[bclee]

Why do you want to prevent water from entering the diffusor? It does no harm.

In fact the diffusor I have is meant to be filled with water so that it can be use as a bubble counter as well.

Water will always flow back when the solenoid cuts off... just because the CO2 in the diffusor and tube will continue to dissolve in the water causing the water to get sucked back a little. As long as the check valve prevents the water getting into the regulator, it is all right.

BC