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Yes removing the check valve at the tank will allow you to use that line at the well to go to the other apartment.  However, you are correct that the CSV should have been installed before that first tee off.  In this case the only way to get the CSV installed before that first tee is to put the CSV in the well.  The CSV125 is designed to fit a couple feet below the pitless adapter in the well, so it is before any tees in the line.
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Pumps, Wells, Tanks, Controls / 1 well, 1 pressure tank, 2 houses
« Last post by Jack A on January 18, 2021, 12:22:59 PM »
Hi, here is my situation. I have a submersible well pump with a water line running to my house (check valve, pressure switch and tank). Knowing that I wanted to build an apt in a separate garage, while the excavator was there I had him dig down the 4' at the well casing and on to the garage. I teed off from the water line going to the house and ran a 1" water line to the garage. Then he re-buried the new line. What i want is to somehow use this connection to supply water to the apt. I believe there is a check valve at the submersible so my thought was to take out the check valve just before the existing pressure tank and let the existing pressure tank and switch pressurize the other system. Will this work? If so is there any way to use a CSV valve or two to prevent cycling and hammer. I wish I had put a CSV valve in between the pump and the tee. Thanks, John
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Thanks for letting us know how it worked!
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Frequently Asked Questions / Re: 4.5 gal vs 10 gal Tank and Pressure Switch Setting
« Last post by RSB on January 17, 2021, 12:56:24 PM »
Got everything installed and up and running on Friday night.  The re-adjusted switch pressure works great (57/70) and I got the CSV set to ~62 psi when flowing 2-3 GPM.  Picture of my install is attached.

When I called earlier last week, Sam recommended I add (1) additional hose clamp to my black poly pump source pipe at the 1/25" barb fitting.  I did that and decided to make an additional upgrade of replacing the poly barb fitting with a brass one.  The only installation hitch I ran into was with the teflon tape.  First go around, I wrapped each threaded interface (steel/steel, steel/brass, steel/PVC, and brass/PVC) with 5 to 7 wraps of teflon tape and threaded everything on very tight.  When I got everything put together and running, there were small/slow leaks from almost every threaded interface immediately :(.  So, I took the entire thing back apart (minus the 1.25 PVC fittings I had glued, those were re-used), took off all the teflon tape, and used blue monster pipe dope instead.  The end result is not as clean looking as tape, but all the leaks are gone!

Thanks again Cary and Sam, for the great product and great product support.
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Applications / Re: Pumping from a storage tank
« Last post by cavscout96 on January 14, 2021, 10:00:56 AM »
Thank you!
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Applications / Re: Pumping from a storage tank
« Last post by Cary Austin on January 14, 2021, 09:07:07 AM »
There are lots of brands of jet pumps.  Just have to make sure the max pressure the pump can build is at least 10 PSI higher than the pressure switch shut off point.  My favorite for now is still the Goulds, like a J7S, or J10S.  Just google those model numbers and you will find several places and prices to choose from.  All you need from us is the PK1A control kit.
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Applications / Re: Pumping from a storage tank
« Last post by cavscout96 on January 14, 2021, 07:58:16 AM »
Perfect!  Thanks so much.

Last question.  Do you have a jet/booster pump manufacturer and/or source?
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Applications / Re: Pumping from a storage tank
« Last post by Cary Austin on January 14, 2021, 06:32:23 AM »
Yes you can set it up that way.  You can also set it up with a CSV, tank/switch on the well pump so you could get water directly from the well pump this way if the booster pump failed.

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Applications / Re: Pumping from a storage tank
« Last post by cavscout96 on January 13, 2021, 10:28:22 PM »
Ok,

Looking at the schematic, the CSV, in this instance, will really protect the booster pump as opposed to the well pump itself.  The well pump is "buffered" from constant on/off by the large storage tank.

PROVIDED that I set my float switch to allow sufficient drawdown of the tank before the well pump kicks on.

Do I have that correct?
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Applications / Re: Pumping from a storage tank
« Last post by cavscout96 on January 13, 2021, 10:22:26 PM »
Yes.  It's just over 8' tall.  It works for the current setup because it's about 40' to the bottom of the hill where we currently water, but the house is at the same elevation as the storage tank.

The proposed additional tank is also around the same elevation.
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