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Grundfos Central Heating Pump Weak?

Discuss Grundfos Central Heating Pump Weak? in the UK Plumbers Forums area at Plumbers Forums

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Do central heating pumps lose their strength over several years and is it worth taking it apart and servicing it?
Are the two seals either end 1 1/2 inch or 1 1/3 inch?

What's the latest central heating pump should I need to replace mine (photo) like for like?


IMG_2918.jpg
 
No I'm not a big fan mate your old pump is not energy efficient the new Grundfoss pump are quite a bit more expensive and in my opinion Dab are just as good . Kop
 

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