I found that I can't get mine to hold a setting the way they reccomend adjusting it. It would do exactly what you are experiencing. Instead, I set the pressure at about 10 psi and then control the bubble count with the needle valve. It has woked fine this way for 7 months keeping a steady flow rate.
__________________
I retired and got a fixed income but it's broke.
Ed
_______________________________________
50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
|