I never use the Grundfos pumps, but use standard AC deep well pumps, so
long as the inverter can handle it. The off the shelf pumps aren't as
efficient, but stay in the water for much longer. They are also cheaper.
---
On 2024-07-11 16:51, Bradley Bassett via RE-wrenches wrote:
An SQF quie
An SQF quiet? I've had three 3 SQF-2 and they are all quite loud, even 300
ft down the well. Maybe the 6 SQF is different. My old 3 SQF-2 will still
pump water but not against much head. I think it failed because it had been
running 24/7 for some time. If the leak is in the well it might even have
Hello All,
I just replaced a customer's Grundfos 6-SQF-2. It had stopped pushing
water to their upper cistern.
A new pump solved the customer's problem, but I am curious if anyone has
had luck repairing a SQFlex pump or (better yet!!) knows of a service
center that could refurb a pump.?
The pump
It’s too bad that Lorentz has come and gone a few times.
I do like the architecture with the electronics all at the surface. And that
the old ones had a easy manual speed control.
The property has a sqflex in another well so I’ll just work on some options to
get the flow as close as I can for
Jay,
Lorentz still has two people in texas. I can’t find an active dealer but
they do provide excellent tech support 24/7. I have to buy from a dealer
but the ones that I have called only get one if specified on a new well
they are drilling. They didn’t know much about them.
John B
On Tue, Ju
This one?
> On Jun 15, 2021, at 2:15 PM, jay wrote:
>
> Does anyone have or know where I can get the pump curves with voltages?
>
> I’m trying to limit flow by lowering the voltage, which I know works, but I
> can’t find the output vs voltage charts.
>
> And does anyone know if Lorentz is s
Jay,
Running a Grundfos pump on low voltage also means running it on limited
input power (the current can't/won't exceed a certain amount). It is
easy to end up with a pump that won't operate all of the time, or only
for a limited amount of hours every day. A pump that has a speed control
is
Grundfus used to have flow vs voltage charts per pump
On Tue, Jun 15, 2021, 3:34 PM jay wrote:
> Does anyone have or know where I can get the pump curves with voltages?
>
> I’m trying to limit flow by lowering the voltage, which I know works, but
> I can’t find the output vs voltage charts.
>
>
I have been using this one for too many years. You need more than this
Jay?
https://www.pumpsok.com/sites/pumpsok/uploads/documents/water_systems/flexnew.pdf
My dealer stopped selling Lornetz and not sure why?
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgr
Does anyone have or know where I can get the pump curves with voltages?
I’m trying to limit flow by lowering the voltage, which I know works, but I
can’t find the output vs voltage charts.
And does anyone know if Lorentz is still active in the USA?
The last time i checked their controller had
t was suggested in other
comments.
Kevin
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of jay
Sent: June-30-16 5:43 PM
To: RE-wrenches
Subject: [RE-wrenches] grundfos SQFlex
Hi All,
Any trick methods to keep a SQflex running on AC
I have this same situation with my off grid well, I have a grundfos sqf5-2
and the yield wound up being .25 gpm. Originally I ran it on 2- Astronergy
235 and made a timing system using a sprinkler timer and a midnite kid
controller it was tough to control the production as the power varied and
was
Could you use real slow pulse width modulation to do what you want? Are
you trying to limit energy, power or volume delivered? If you've got the
Cu 200, you could put a timer on the float switch contacts that cycle it on
and off.
On Fri, Jul 1, 2016 at 6:14 PM, Maverick Brown
wrote:
> Jay,
>
>
Jay,
Will a Variac work in this situation?
Thank you,
Maverick
> On Jun 30, 2016, at 7:43 PM, jay wrote:
>
> Hi All,
>
> Any trick methods to keep a SQflex running on AC power at a given flow rate
> that is less than full power?
>
> I’ve got a well that is just on 1 gpm, around 150’ lift
I'd suggest a valve restrictor or perhaps a ball valve that you can adjust
over time till you achieve your correct flow rate while making sure your
well is able to recover.
Christopher
On Thu, Jun 30, 2016 at 8:43 PM, jay wrote:
> Hi All,
>
> Any trick methods to keep a SQflex running on AC pow
Samsung Galaxy S™ III, an AT&T 4G LTE smartphone
Original message From: jay
Date:06/30/2016 2:43 PM (GMT-10:00)
To: RE-wrenches
Subject: [RE-wrenches] grundfos SQFlex
Hi All,
Any trick methods to keep a SQflex running on AC power at a given flow rate
that is less than
Hi All,
Any trick methods to keep a SQflex running on AC power at a given flow rate
that is less than full power?
I’ve got a well that is just on 1 gpm, around 150’ lift.
the sqflex 3-2 will do it, but at 3gpm with full watts, an amazing 265 watts.
thx
jay
peltz power
__
Awesome responses thank you! And yes I did mix up the IO-101 operating voltage
with the CU200.
So because efficiency is important we’ll keep the CU200 in the system.
Client wants a large pressure tank because of garden irrigation so we're
looking at an 86 gallon model so pump will not cycle a
"If you are not going to be using a PV-direct arrangement, there is not much
advantage in using the Flex pumps."
except efficiency. i have two wells at home and the grundfos sqflex pumps 50'
of additional head at the same flow rate, using 30% less energy as compared to
the standard, 3/4 hp
> From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
> Behalf Of jay peltz
> Sent: Monday, October 20, 2014 6:37 PM
> To: RE-wrenches
> Subject: Re: [RE-wrenches] Grundfos SQFlex
>
> Hi Ron
>
> Where did you read that the CU 200 is only good for 12
AEE Solar
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of jay peltz
Sent: Monday, October 20, 2014 6:37 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Grundfos SQFlex
Hi Ron
Where did you read that the CU 200 is only good for 120vac. The ma
: Monday, October 20, 2014 6:37 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Grundfos SQFlex
Hi Ron
Where did you read that the CU 200 is only good for 120vac. The manual I see
shows 240vac 50/60hz?
Jay
Peltz power.
> On Oct 20, 2014, at 6:21 PM, "Ron @ earthRight Solar&qu
nches
Subject: [RE-wrenches] Grundfos SQFlex
Hello water pumping Wrenches, I have a customer who has a Grundfos SQFlex
11 pump and he is getting connected to the grid. He will still have his
battery back up charged by PV and wants to look at the most efficient way
to operate the pump. It seems to me
Hi Ron
Where did you read that the CU 200 is only good for 120vac. The manual I see
shows 240vac 50/60hz?
Jay
Peltz power.
> On Oct 20, 2014, at 6:21 PM, "Ron @ earthRight Solar"
> wrote:
>
> Hello water pumping Wrenches, I have a customer who has a Grundfos SQFlex 11
> pump and he is
Hello water pumping Wrenches, I have a customer who has a Grundfos SQFlex 11
pump and he is getting connected to the grid. He will still have his battery
back up charged by PV and wants to look at the most efficient way to operate
the pump. It seems to me that neither the IO101 or the CU200 real
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