Pump Doesn't Pump....Just Hums

[rickpx14]

I found this forum today as I *sigh* seem to be having the same problem here in Chardon, OH. Although when I reached in with my 7/16 and turned it back and forth (was able to do so - without getting shocked it didn't seem to make a difference. Here are details: pump certainly seems to be running ok (starts up ok) but I have low flow. I am going directly to waste (bypassing the filter). I replaced all suction side pipes and it is air tight. In fact, when I turn off pump, I hear a swoosh of water that kicks back into the basket from the pump. When I open the basket lid the presuure relieves. So it seems like I have plenty of pressure but the water doesn't want to move for some reason (well, a little bit of water is moving but not much)...the pressure gauge isn't moving - just site at 5psi. I reached in and checked impeller which moves fine and doesn't appear to be clogged. It looks like I might have to tear the pump apart? Any other ideas on what's happening? Thanks very much for any insight.

[lmnharris]

I just went through a slightly similar problem with the low flow/no pressure problem. My housing was cracked on the pump basket and sucking in air. I wasn't able to see the water squirt out when shutting down due to the low pressure. Also the crack was at the very bottom.

[waste]

RICK, welcome to the forum!!, you may have a clogged impeller or as Imnharris points out, a cracked pump housing. (there are a couple of other things, but they are much rarer). Check the lid of the housing for air bubbles - if you have air it will mean 1 thing, if not another.
Mayhaps this should be moved so as not to take over the origional post - Waste

[rickpx14]

thanks a ton. i did post a new topic (baffled-low flow) and I remain baffled...how can I check for a cracked housing?