Air in Myers surface well jet pump

I started having trouble when the water line was proken during digging around the basement. The line was repaired however some gravel was sucked into the pump and had to be repaired. The pump now suckes air and has trouble pumping to it's max. setting. I disconnected the line after the check valve at the pump and connected a line from there straight to a large container of water and started the pump, it still sucked air. Can the pump have a leaking gasket or something that can suck air but not leak water or lose pressure?

I've seen suction lines that you could look at and never tell they had a leak until you fired the pump up and tried to start drawing water. A combination of water pressure along with the subgrade packed tight around the piping were the reasons I suppose. There is a possibility that there is a loose connection that you are not aware of that is causing the problem. Double check and even soap test your local connections to make sure you are not missing anything.

Sorry, I don't think it's an air leak. We'll see what other pump guys think.

Gary
Quality Water Associates

If you hooked the pump to a large container of water and it sucked air with little or no vacuum, I don't know what to say about that. If the pipe size is the same as the suction fitting of the pump and it's sucking air, you must have a major air leak somewhere in that pipe. The only other thing I can think of since I don't know anything about your pump or system is you may possibly have an air control line hooked to a galvanized tank and the air control is bad and giving the pump air.If you can give us more info, I can be more helpful. But if you cut a suction line outside and had it repaired, the repair could be the problem also. What kind of pipe and how was the repair made etc. etc. etc.???

There is very little on that pump that is vacuum, most of the pump is under pressure when running. If you got gravel in the impeller and didn't get it all out that could explain the pressure problem.

bob...

Yeah, I was going to say he doesn't have all the gravel out and the pump is cavitating instead of sucking air.

Gary
Quality Water Associates