My well is already dug and I think it's a centrifugal type pump at 1.5 hp tat i was sold. The guy that sold me the pump didn't say anything about recovery rates e.t.c., but did say that I should use my ball valve to get the correct psi i'm looking for the flow rate to the sprinklers. He did mention that the pump was more than adequate to do the job. I'm just curious what size foot valve i will possibly need (for a 4" shallow well). I do plan on using 1" pipe to the heads though with 3/4 risers. Hopefully, the plumber will soon come to complete the install for the actual pump.
P.S. will putting a psi gauge on the pump outlet harm the pump in any way while it's running? Sorry, but i'm pretty new to well pumps. Any more help appreciated. Thanks
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by drpete3</i>
<br />the diameter depends on the pump and the well. For example my well guy advised that I do 1.25 in pipe with a 1 hp submersible pump and a 40 gal pressure tank and that would get me 20 gpm. This was all explained to me after they installed 1/2 hp pump 20 gal tank and 1 in pipe. As I have said before ask the person who sells you the pump because there are several different factors to take into consideration. From my pressure tank I ran 1 inch pipe out of my basement to the heads. To do your flow test i would get your pump running and adjust the flow until you are getting 40-60 psi then fill a 5 gal bucket and time it. And yes you can put a psi guage on the outlet from the pump.
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