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water pump delay

Meself · 2014-07-13 12:28:27

Hi, I had a new water pump installed in the apartment about 3 weeks ago. Ground floor apt. Its a Grundfos double neg I think. Every time I run the taps or shower there is a 4 sec delay before the pump kicks in. The last pump was instant but was replaced as it seized. Anyone know if there is a simple solution to fix this or…

13-07-2014 12:28pm

#1

Meself

Registered Users, Registered Users 2 Posts: 233 ✭✭

Join Date: September 2006

Posts: 201

Hi,

I had a new water pump installed in the apartment about 3 weeks ago. Ground floor apt. Its a Grundfos double neg I think.

Every time I run the taps or shower there is a 4 sec delay before the pump kicks in.
The last pump was instant but was replaced as it seized.

Anyone know if there is a simple solution to fix this or is it just a feature of the pump ?

Thanks

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Comments

#2 13-07-2014 8:29pm

K.Flyer

Registered Users, Registered Users 2 Posts: 8,565 ✭✭✭

Join Date: August 2010

Posts: 8456

This seems to be a norm with the Grundfos Negative Head pumps and its the main reason I don't really go for them.
Sometimes its curable by careful adjustments to the pressure switches, but sometimes the adjustments don't improve it that much.

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