Grundfos Stainless Steel Submersible pump

Joined
Dec 31, 2017
Messages
12,505
Location
SE British Columbia, Canada
Didn’t know what Grundfos was before today, but I see it’s a brand name that’s been discussed on this board. A plumber friend of mine suggested considering a Grundfos Stainleess Steel submersible pump for my water well with a level down at 45 ft. The well has no trouble delivering 7 GPM.

I got a quote for an installation and the pump itself was a 7 GPM matched for my 220 V single pole existing system. It’s supposedly a stainless steel pump. With the contractor’s markup the pump itself is $1500 USD. Is there something special about Grundos that makes them fairly expensive?

Anyone have a good running history with this brand of pump? Thanks.

Snag
 
Last edited:

UncleDave

$50 Site Donor 2023
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Jun 2, 2014
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7,679
Location
Ca.
Yes I've run this brand on several wells. Grundfos makes superb product.

They sell some models that are run dry tolerant to an extent which is an issue here in the sierras where you get seasonal well " drought" and many brands are subject to burn out.
 
Joined
May 7, 2004
Messages
13,157
Location
Nokesville, VA
Didn’t know what Grundfos was before today, but I see it’s a brand name that’s been discussed on this board. A plumber friend of mine suggested considering a Grundfos Stainleess Steel submersible pump for my water well with a level down at 45 ft. The well has no trouble delivering 7 GPM.

I got a quote for an installation and the pump itself was a 7 GPM matched for my 220 V single pole existing system. It’s supposedly a stainless steel pump. With the contractor’s markup the pump itself is $1500 USD. Is there something special about Grundos that makes them fairly expensive?

Anyone have a good running history with this brand of pump? Thanks.

Snag

I have a variable-speed Grundfos SQE pump installed 260 feet down. It's been working for the last 5 years with no problem. Variable-speed means that with the appropriate controller inside the house (which I have), it will adjust it's speed to maintain a constant pressure via pressure sensor.

Apparently this pump will work without the controller as a regular single-speed pump, but that seems like a waste.

The controller communicates with the pump through powerline communication, there is no additional control wiring needed.

I can actually run this pump off of a 12V deep cycle marine battery connected to a 1500W inverter connected to a 120V -> 240V step-up transformer, as it only pulls 800 watts with a single faucet running and because it ramps up the speed, it has a low startup surge (unlike a conventional pump).

EDIT: The additional cost for the variable-speed setup was $1200 (compared to a single-speed pump). Well worth it, I think.
 
Joined
Feb 27, 2010
Messages
484
Location
Minnesota
I have a variable-speed Grundfos SQE pump installed 260 feet down. It's been working for the last 5 years with no problem. Variable-speed means that with the appropriate controller inside the house (which I have), it will adjust it's speed to maintain a constant pressure via pressure sensor.

Apparently this pump will work without the controller as a regular single-speed pump, but that seems like a waste.

The controller communicates with the pump through powerline communication, there is no additional control wiring needed.

I can actually run this pump off of a 12V deep cycle marine battery connected to a 1500W inverter connected to a 120V -> 240V step-up transformer, as it only pulls 800 watts with a single faucet running and because it ramps up the speed, it has a low startup surge (unlike a conventional pump).

EDIT: The additional cost for the variable-speed setup was $1200 (compared to a single-speed pump). Well worth it, I think.
Does a variable speed pump eliminate the need for a pressure tank? Trying to figure out how this would work.
 

JTK

Joined
Aug 14, 2003
Messages
14,908
Location
Buffalo, NY
That's a good quality pump.

I think the circulation pump for my home's hot water baseboard heat is a grundfos.
 
Joined
Aug 20, 2003
Messages
18,958
Location
NE,Ohio
45ft well? why arent you using a jet pump? or this is out in the middle of your yard?
Dont need anything fancy for 45ft down.
 
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