So I bought a 30 gallon deep blue shallow tank and I tried redoing the standpipes. The new drain which is 1 inch is god awful loud. Tried using airline, submerging the drain in the sump and tried making the hole bigger, no luck. I put the deep blue standpipe in which is 1 1/4 inches draining into a 1 inch line and its quiet. Any idea what I can do with the one I made to silence it?
The other question is I can adjust my teeth depth on the overflow. It is louder also. Im using some filter floss for now and its still kind of loud, anything else I can try?
Here's how its looking now.

The other question is I can adjust my teeth depth on the overflow. It is louder also. Im using some filter floss for now and its still kind of loud, anything else I can try?
Here's how its looking now.



