Variable pumps & drain back systems [RE-wrenches]

blair Tump may tump at midcoast.com
Tue Jun 5 20:10:52 PDT 2001


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>Windy,Living in places where the cold weather and ledge can make burying 
>water lines below frost level tough ,there are what is called a drain back 
>system. I'm sure that you have seen a few , my question is DO these types 
>of ramp up pumps work w/ the drain back system? And if so where can I get 
>more info on them?



>The Grundfos SQ and SQE pumps are intolerant of silt because they turn at 
>about 10,000 RPM instead of the old standard 3450. Imagine!
Solarwinds NorthernLights
Serving Mid Coast Maine & Northern California
          610-517-8401              707-498-2804









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