-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Dave Angelini Offgrid Solar
Sent: Thursday, April 27, 2017 9:40 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sta-Rite Submersible Well Pump
What has been the reliability issue with Grundfos? I have not had any problems
with them other than th
m: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Jerry Shafer
Sent: Thursday, April 27, 2017 5:21 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sta-Rite Submersible Well Pump
Brad
We have used the grundfus 120 volt MQ On demand Pressure pump and have had no
issues at
Brad
We have used the grundfus 120 volt MQ On demand Pressure pump and have had
no issues at all, uses very little power even when working hard, say a show
On demand water heater UV light and primary filters. the entire system is
drained to prevent freezing in the winters, it has been years with mo
We've used the Grundfos SQE and the MQ lines of CP pumps and never had
problems. I've only seen them keep running, if there was a leak.
R. Ray Walters
Chief Technical Officer, RemoteSolar.com
BS Mech Engineering, 1988
Former NABCEP Certified, 2004-2016
Licensed Master ELectrician, Colorado
303
Also I could never convince the guy to put in a pressure tank and a switch
The reason he got the pump so we didn't have to have a pressure tank
Bob
> On Apr 27, 2017, at 6:48 PM, Bradley Bassett wrote:
>
> Dana,
>
> For off grid you may not want to use the constant pressure pumps. They will
I tangled with one system that had a constant pressure pump
He had moved an off grid system to a location where grid was available And
wanted to use it as a back up
He ended up selling the entire system once I explain to them the thing was
never going to stop running at every possible opportunit
Unless it is a very large offgrid system I agree with Brad. Also if the
electrics fail, are they underground?
I would typically pump to a tank and then drain to a surface pump and
pressure tank/switch at the home.
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/
Constant Pressure pumps are a much better choice off grid. No starting
surge is huge, and the power draw is related to the water flow, so at
low flow rates, the power is only a fraction of full run watts.
Pressure switches and P tanks are archaic. The variable pressure and
the light dimming
Thanks Jay,
I will read the manual later but would you know for sure that is pump soft
starts? The MQ did not.
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
> Grundfos SCALA2
> its the new version of the MQ pump.
>
> jay
>
> peltz power
>> On
Dana,
For off grid you may not want to use the constant pressure pumps. They will
run a little bit, a lot of the time to keep the pressure constant. I think
it might be more efficient to use a pressure switch and regular pressure
tank. Anyone with experience in this?
Brad
On Wed, Apr 26, 2017 at
Grundfos SCALA2
its the new version of the MQ pump.
jay
peltz power
> On Apr 27, 2017, at 7:39 AM, Dave Angelini Offgrid Solar
> wrote:
>
> What has been the reliability issue with Grundfos? I have not had any
> problems with them other than the above ground electronics.
>
> A side question
What has been the reliability issue with Grundfos? I have not had any
problems with them other than the above ground electronics.
A side question, has anyone found a small (1/2hp) above ground household
pump that is soft start and reasonably priced?
> My well driller-well pump guy is offering
My well driller-well pump guy is offering Sta-Rite pumps manufactured by
Pentair [as in Pentair water filtration they seem to be buying lots of water
related companies].
I am curious as to feedback on these, has anyone used them?
Soft start, digital controls, easy programming, stainless steel, 3
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