[evitagen22]

I have two co2 reactors on two different tanks. The one that uses 2" pvc makes the splashing sound. The one with 1.5" pvc doesn't. Both seem to work pretty well though... I don't see any bubbles coming out of the filter output in the tank and the drop checker is happy.

To fix the leak I'd try coating the threading with plumbers dope or at least teflon tape.