Plumbing help needed bad!

[Darth Wader]

I got a few questions for you. Where is the "waterfall" noise coming from? Is it from the water entering your sump or the water pouring into your overflow?
Also do you have 2 drain lines in your overflow or just one? If the main waterfall noise is from the water pouring into your overflow that is easy to fix. Let me know.

 

[bues0022]

There are 2 drain lines - one from the 58 gallons tank, and one from the 30 gallon tank. The 30 gallond tank is the one I'm having problems with. The 58 has a real durso standpipe, and the hose is submerged under the sump water level by about 2 inches.

I have a flushing waterfall There is a slight flush/gurgle at the inlet to the drain inside the tank (I have an external durso, maybe the hole isn't sized right?) The first waterfall noise is at the 90 degree bend after the water falls 30" then starts going horizontal to the sump. This isn't the bad one. The second really bad spot is the loud echoing/flushing/gurgle where the water enters the sump.

 

[mille239]

Add a 'T' or 'Y' to your drain line right before the water enters the sump... allows the air to exit, and REALLY quiets things down...

 

[Darth Wader]

I was just going to say add a tee as the water enters the sump. If you add a filter sock on the one end of the tee it should help out aswell. It sounds like you are getting that waterfall noise becase its dropping 30" without haveing a horizontal leg before entering the sump. All you need is a short horizontal section so you dont have such a large drop splashing right down into your sump.

 

[Darth Wader]

You could also get rid of the 90 degree elbow and add two 45 degree elbows so that the water isnt crashing down due to the 90 degree turn. A 45 turn is allot more gradual and the water wouldnt crash down so much.

 

[reefergeorge]

<a href=showthread.php?s=&postid=10983569#post10983569 target=_blank>Originally posted</a> by mille239
Add a 'T' or 'Y' to your drain line right before the water enters the sump... allows the air to exit, and REALLY quiets things down...

Does anyone else do this? I might give this a try. I have the same problem with a 24 inch drop ended in a T.

 

[bues0022]

Here's my plan:

I just cut the down pipe so I'm in for it now! I think the 45 degree slant will solve LOTS of my noise problems. The rest hopefully will be solved with the T at the bottom!

 

[Playa-1]

Looks good, let us know how it works out.