THIS MAY OR MAY NOT WORK FOR YOU AND I AM NOT RESPONSIBLE FOR ANY ACCIDENTS.
I have been having problems with the noise coming from my 2 inch overflow namely the gurgling sound and I tried all sorts of things to try and quiten it. We had a part from a sprinkler valve picture below its the black piece on the right. For people who know sprinkler systems it is the piece which water comes out of when the sprinklers turn off it releases the excess water.
Anyway took everything from inside this piece and we drilled three or four holes into the side of it and a hole in the top. We put a drinking straw into the top hole to let the air out of the overflow when it is installed so it alows the water to flow in through the lower holes. We then put the piece on top of the overflow and it allowed the water to come just above the ridge marked on the picture this made sure no air was getting sucked in and the straw let what ever air was in the system out so there was no gurgleing.
I also installed a some extra pipe work where the overflow runs into the sump to create a small back pressure.
Doing this did quiten my overflow alot my airpump now makes more noise than my overflow now.
It did take some time getting my water level right as the number of holes drilled into the top piece depends on how much the return pump pushes out.
I have been having problems with the noise coming from my 2 inch overflow namely the gurgling sound and I tried all sorts of things to try and quiten it. We had a part from a sprinkler valve picture below its the black piece on the right. For people who know sprinkler systems it is the piece which water comes out of when the sprinklers turn off it releases the excess water.
Anyway took everything from inside this piece and we drilled three or four holes into the side of it and a hole in the top. We put a drinking straw into the top hole to let the air out of the overflow when it is installed so it alows the water to flow in through the lower holes. We then put the piece on top of the overflow and it allowed the water to come just above the ridge marked on the picture this made sure no air was getting sucked in and the straw let what ever air was in the system out so there was no gurgleing.
I also installed a some extra pipe work where the overflow runs into the sump to create a small back pressure.
Doing this did quiten my overflow alot my airpump now makes more noise than my overflow now.
It did take some time getting my water level right as the number of holes drilled into the top piece depends on how much the return pump pushes out.
