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Re: [Shop-talk] OT: Well Water Pressure Tanks

To: Scott Hall <scott.hall.personal@gmail.com>
Subject: Re: [Shop-talk] OT: Well Water Pressure Tanks
From: John Innis <jdinnis@gmail.com>
Date: Fri, 15 Apr 2011 18:30:52 -0500
The Pump is at the bottom of the well.  The well in this case is about 190'
deep, fully lined to keep the ag runoff out of it.  The Pump is an ITT
Goulds 2hp 4" submersible Franklin Motor Model 18GS20432, running 230V
3Phase.  The Controller/Phase converter is also ITT Goulds Balanced Flow
Submersible Pump Controller model BF20.    The Tank is a Flow-Thru model
FT18 4.5 gallon size stainless, rated to 125PSI.  At rest the system sits
about 75PSI.  Working the system pushes about 70PSI.  I am guessing the pump
is a non-constant displacement, as it runs for several seconds after the
water is turned off and the pressure has stabilized.  I do know that the
pump is not a simple on/off arrangement, the controller regulates power to
the pump to maintain a constant pressure.  I had all this installed when we
built the house by Wickman Pump in Coggon, IA.  The whole setup cost us
about $2300 (not including the well drilling).  This was all done in 2007.

On Fri, Apr 15, 2011 at 3:38 PM, Scott Hall
<scott.hall.personal@gmail.com>wrote:

> John,
>
> Is your pump on the (bottom) end of the well pipe?  My pump, for example,
> is on the end of about 50 feet of steel pipe sunk into my backyard.
>
> And you mind sharing what that setup cost, and where you got it?  I'm to
> the point that I might build a derrick to pull my well out of the ground if
> I need to--there is no competent repair or service option locally.
>
>
> On 4/15/2011 3:35 PM, John Innis wrote:
>
>> I would argue that bigger is not always better.  Basically you need to
>> match
>> the type of tank to your well pump.  When we built our new home a couple
>> years ago I was surprised to learn how much the technology for well pumps
>> has changed recently.  We ended up going with a 3-phase (driven by a small
>> phase converter off single phase residential 220). high pressure-high flow
>> pump on a phase converter and a tiny pressure tank (only about two
>> gallons).  This is the best well system I have ever used.  The pressure is
>> on instantly and does not fall off at all.  I can run two showers and
>> water
>> the lawn all at the same time with no loss of pressure.  If you are
>> sticking
>> with an older pump, you will probably want to go with a big pump.  But if
>> you are considering a new pump, I would highly recommend a system like
>> mine.
>>
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