Air Pumps self reversed

My air pumps have began to push air OUT of the intake. This has been a gradual process and they have all went from putting out strong bubbles, to wasting air, since it is now being forced out on both ends.

Is this common? Do I need to do routine maintenance on these things? They are only a couple of months old.

Thanks

Using this 950GPH pump

might be time for new airstones

Cissy said:

My air pumps have began to push air OUT of the intake. This has been a gradual process and they have all went from putting out strong bubbles, to wasting air, since it is now being forced out on both ends.

Is this common? Do I need to do routine maintenance on these things? They are only a couple of months old.

Thanks

Using this 950GPH pump

Click to expand...

have you tried replacing the diaphram?

if so then it is probably a bad pump.

they sell replacement diaphrams for like 3 or 4 duckets

wow.. if they went bad THAT fast, then what a waste. I've only had them for 1 or 2 months. Kept a fan blowing on them to keep them cool as well. One is really blowing air out of the wrong side and the other is not far behind. Cheap ass crap

Cissy said:

wow.. if they went bad THAT fast, then what a waste. I've only had them for 1 or 2 months. Kept a fan blowing on them to keep them cool as well. One is really blowing air out of the wrong side and the other is not far behind. Cheap ass crap

Click to expand...

i know thats really weird, thats like a 50 dollar pump, i'm pretty sure mine were only like 25 bucks/set of 2, and i am running 6 in the same res.
they each have dual outputs
and work fine.