Pond Boss Forums AERATION Systems questions Gast Compressor

My compressor is running, but no air coming. I know the vanes need replacing, but would it completely quit? Should I be looking for something else?

Sniper, I'll be swapping out a Gast in 9 days for the exact same reason. It runs, but no air. I talked to Sue at Vertex and she said that it probably needs rebuilding. I'll let you know what I find out if I get to this one before you get to yours.

Thank you. We're getting into the dog days.

Thought I'd jump in and help here...

I fix these compressors all the time. Inside, there are four vanes made out of compressed carbon. They use carbon so that they wear over time (not the metal of the pump) and when they fail, they shatter into a powder (most of the time) so that they do not damage the pump. Typically vanes have a lifespan between 9 and 24 months, depending on specific application parameters.

If your pump is running and no air is coming out, this means that the vanes have shattered and need to be replaced. It is a simple fix, and a shop near you can probably do it for around $150 for 1/4 hp and around $250 for a 3/4 hp. (the vanes are the expensive part; $25-$75 each depending on the compressor model)

Best Regards,

MT

Bill Cody will treat you right on a rebuild kit.. Contact him first (under $100 I believe)

Thanks to all. I did as you suggested, and have the aerator running again. Also bought a new fan, as mine had seized. I guess it needed oiling and I did not do that.

Note to all that are re-doing vanes: make sure you clean and blow out the area where your vanes rotate. It is very important to clean the debris out as even little remnants will shorten the life of new vanes.

PS:(I sure wish it would rain.)

If you are DIY, be very careful with the new vanes as they are fragile. As Sniper says, clean that thing out well. Any small piece of anything will seize the pump.

Jeff-