Gargling noise on my overflow

[whatcaneyedo]

Pictures of your overflow or at the very least a description would be handy. Some common quiet overflow designs include the stockman standpipe, durso, herbie and beananimal. More info can be found by googling those or searching them on this site.

[MarkoD]

yeah a durso standpipe is really simple to make.....

[gobytron]

Also, if you just take some airline hose and thread it through your overlfow, leaving the top where it can "breathe" you'll find it quiets things significantly.