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Spare parts for Appliance Backflow preventer

Discussion in 'Plumbing and Central Heating' started by slangivar, 2 Dec 2018.

  1. slangivar

    slangivar

    Joined:
    1 Jul 2009
    Messages:
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    Location:
    Edinburgh
    Country:
    United Kingdom
    Our dishwasher is connected to the drains via one of these drain kits available from screwfix which include a backflow preventer: https://www.screwfix.com/p/washing-...d=589712#product_additional_details_container

    Unfortunately last weekend the dishwasher stopped working and having taken the drain pump out the dishwasher I eventually tracked the problem down. The backflow preventer was blocked. Having cleared it out I discovered that the return spring was rusted and no longer sealing the pipe. While the dishwasher works it is obviously no longer correctly installed and needs fixed.

    Before I head out to screwfix and buy a full replacement kit for the sake of a spring can anyone tell me if it is possible to buy either replacement springs or more likely just the backflow preventer without the rest of this kit. My google skills aren't turning anything up.
     
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