Well, I took the cap off, rinsed it off, and put it back on. It looked like it was curling up on the sides, so I'm planning on going to buy a replacement today or tomorrow. But for now the noise seems to have stopped. Thanks so much for all of your help!
www.terrylove.com/korky
It seems like if I push down on the entire mechanism, the noise stops. At one point while I was monkeying around with it, bubbles started coming out near the base of the tube the mechanism sits on top of. Could a bad seal down there cause it to happen?
Howdy,
We have a Korky 528 Anti-Siphon on our toilet, and it recently started making a noise that sounds like a mix between something going "tukatukatuka" and a steam locomotive barreling down the rails. I'm not sure what's wrong, and strangely enough Googling "Korky 528 anti-siphon...