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After numerous gas engineers telling us to replace our 18 year old vaillant 835e I decided enough was enough I work on oil fired stuff as it is. Ok so changed the pump the non return valve & filter, my original symptoms were, shower varying on temp by 10 degrees, just with three items above, she now runs at a steady 53/54 degrees problems solved we are in a semi hard water area I treat it every year to a drain down and treatment I look after it, it looks after us.
Verified purchase: Yes | Condition: New
Fair price,well packaged, and delivered on time. can't ask much more then that. Definitely use again.
Verified purchase: Yes | Condition: New
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