On Jun 27, 3:06*pm, John wrote:
Hi folks,

I'm going to install a lake water system at my new cottage and part of
that is re-using a Duro 1/2 hp pump from a friend. It was set up at
his place in a deep well application with the ejector / venturi unit
in his well using a two hose connection between the well and the pump
inside his cottage.

His handyman disposed of the ejector so I ended up buying a new
universal ejector / venturi unit but it doesn't fit on the pump body,
as one would do in a shallow well/lake application like mine (15'
lift).

The question is whether or not I should use a double pipe to have the
ejector in the lake near the foot valve, or can I just hook it up near
the pump and have just a single pipe to the lake. Are there any
considerations with priming etc?

Your advice is greatly appreciated,

John

With a 15ft lift you do not need an ejector. Single pipe works fine
with a footvalve.

Priming? Keep your suction pipe as near verticle as possible with the
pump as near the lake as you can get. The closer to horizontal any
section of the suction pipe is, the more priming problems you will
have.

Harry K