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Water Flow reduction - pump or line problem?
My pond has been going just fine for a couple years now but lately, I have
seen a decrease in water flow. When pumps fail, is it a "working" / "not working" scenario or is it a water flow just slowly starts going down? For some reason, I thought pumps kind of worked or they didn't. If they failed, they didn't work at all. Couple notes on the pond: * Whole thing is about 1000 gallons - 2 ponds - 1 small one flowing down two 35' streams into a lower pond that is about 5' x 12' x 2'. Extenal pump (forgot name) that goes up 2" PVC - ~6' drop over the 35'. * the filter is a notched PVC piping system with screen door screen and a few inches of pebbles (Moorehaven folks in Seattle pointed me in that direction). * We have about 5 or 6 gold fish in there for the past year or so. The water has been very clear but the bottom of the pond has more "gunk" on it - my guess is due to the fish. Hopefully the extra floating plants and lillies and grasses I have in there will start cleaning up the stuff more. * I seem to have more string algae this year (probably fish again). Hopefully the barely bales will start getting that under control. Even when I clear off the bottom gunk (which doesn't take too long), the flow doesn't really increase. Could it be that the gunk has filtered down through the rocks \ screen and plugged the pvc filter? I don't want to replace the pump if that isn't the culprit. On the other hand, I don't want to drain the whole pond and replace all the rocks just to find out that it was the pump the whole time. Opinions \ advice is appreciated. Thanks Darren |
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