grundfos sqflex [RE-wrenches]

[Matt Tritt]

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Jay and Windmeister,

Even though the flow may come from the top of the pump, there is still 
enough residual flow from the bottom to keep the motor happy - unless 
you happen to be pumping from a hot water strata. :-)

Matt T

Windy Dankoff wrote:

>
>
> Jay,
>
> I have never seen any data to answer your question, but it seems not  
> to be critical. I have been told that only a very small flow is 
> needed  to cool a (conventional) motor and that it the danger lies in  
> stagnation and warming of water around the motor when not confined in  
> a flow-inducing tube.
>
> Windy
>
>
>> Hi Windy,
>>
>> Thanks for the info.
>>
>> If I have access to a band saw, I use it to make many passes on the
>> pipe 1-2" deep, works well.
>>
>> I am curious about one thing. In a well, often the "fresh" water
>> comes from above the pump. So in such a case
>> the water below the pump isn't being used. Does the pipe casing at
>> this point provide the chimney effect to bring cooling
>> water to the motor below the pump?
>>
>> jay
>>
>> peltz power
>
>
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