Tetratec Deep Water 12 Airpump
I have had this Tetratec airpump for 4 years. It's still working, but recently it has begun to make a squeaking noise, like a bird chirp. I'm pretty sure that the pump is making this noise! Has anyone else noticed anything similar? I looked for a repair kit online and only the larger Deep Water pumps have a repair kit. Another site says that this pump rarely has a diaphragm failure. Any ideas on how to fix this? The chirping is a bit annoying! The pump is run through a gang valve and it powers two sponge filters in two 5-gallon tanks. I did adjust the gang valve slightly, but the noise didn't go away, so I put the gang valve adjustment back where it was.