Richard Dowling
Member
Hi All, I've noticed in the last day or two that my Tetratec EX1200 extermal filter is pushing bubbles out constantly (which is annoyingly loud). The filter usually does it for a few hours after you clean it because obviously it's full of air when you turn it on. But this time I havnt had it open for quite some time and its doing it all day. I've given it a little shake to dislodge air but it just keeps going! How can air get into a sealed system without water getting out?
Any ideas what the problem is?
Any ideas what the problem is?