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Old 08-17-2010, 06:05 PM   #1
Sep 2009
Posts: 124
Liked 4 Times on 4 Posts

I'm in the process of designing and building a 2-tier system with a single pump, but I'm stumped about the best way to do the flow control and priming.

I like the idea of using a 3-way valve like this "any direction" one from McMaster:

However, I'm not sure exactly how it works. Ideally, I would plumb it to have the outflow of the pump coming into the valve and then I could open it one direction to bleed off and another direction to make it flow through. In theory, I like it because there's only one valve in the system to deal with, but I'm not 100% sure how those 3-way valves work. Has anyone tried this?

The second option that I like is to put a T on the outflow of the pump, put a ball valve inline and stopcock on the side of the T.

The final option would be to use a valve like the one at the top of this page that has a drain on the side.

Any thoughts?

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Old 08-17-2010, 06:10 PM   #2
slakwhere's Avatar
Dec 2009
Salt Lake City, Utah
Posts: 764
Liked 21 Times on 20 Posts

i'd say T on the outflow with a stopcock or a 2 way valve after the ball valve...

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