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Diaphram pump for sump

Diaphram pump for sump

Diaphram pump for sump

(OP)
I want to install a Diaphragm pump for a sump to transfer liquid(specific gravity less than 1),100 feet away and 20 feet high.The suction and discharge pipes size are 1-1/2 inches.Do i require to have foot valve at suction and a Non Return Valve at discharge? Seeking help from Forum.
Thanks
gkarsandas

RE: Diaphram pump for sump

Diaphragm pumps generally have inlet and outlet check valves built into them.  That's what makes them work.

Ted

RE: Diaphram pump for sump

As pointed out by hydtools there is no need to a NRV on either inlet or discharge, however, a NRV (foot valve) at the inlet to the suction line could make the start-up time a little quicker if required.  

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