drain noise

[ggenz]

are standpipes with the hole in the bottom of the tank quieter than an overflow bulkhead with the hole in the upper side of the tank?

i think the standpipe would have less air in the pipe, is that better?

 

[ggenz]

^

 

[Airman]

My experience with noise is hit and miss. I like things really quiet so it took me about three weeks to get a quiet drain. I started with a weir (Marc's design) with a durso drain. I could not get it quiet. Finally I used an old hang on the back (HOB) filter and turned it into an oversize overflow. It works great and gives me some additional filtering. I went through a lot of pvc pipe and fittings to get my tank quite. You will learn somethings as you go.

 

[ggenz]

was the overflow louder than the hob?

 

[Airman]

The overflow with the weir was unbearable. The overflow with the HOB is not noticable. The only sound I can hear now is the pumps. I have low flow coming back from the sump into the tank.