"Joey" wrote in message
om...
Okay, I did sprayed some soap solution on all the fittings. So far, no
sign of leakage. I did cut one of the aquarium tube ending so that it
fit tighter to my check valve. I also removed the airstone.

After setting the bubble rate 1 per sec., I came back about 2 hours
later. There is no more bubbling. I check the ph, it is now 8.0. I
will readjust the bubble rate again to see what will happens in a few
hours. I will keep you all posted on this.

Joe

Unless I'm missing something, there HAS to be a leak. The gas has to go
somewhere, or the bubble count has to go to zero (pressure equalizes).

Rod