Pond Boss Forums GENERAL QUESTIONS Help Siphon system buried

I too think the siphon pipe itself is plugged with mud. If you can take a 3" semi trash pump, fire it up and feed the hose in from the downstream side to flush the plugged pipe. Once the pipe is cleaned out hopefully there will be some rain to fill the pond more and flush the dirt away from the inlet side.

There is no good way to seal corrugated pipe to use it without sucking a LOT of air through any of the connecting fittings, and that air breaks the siphon..

If still want to use flex pipe to suck the dirt away, they make suction hose for the semi trash pumps that use banjo fittings to seal and connect to a banjo fitting on rigid pipe. .