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Boss adapters- rubber or plastic

Discussion in 'Plumbing and Central Heating' started by 600rob, 12 Jun 2021.

  1. 600rob

    600rob

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    Need to fit a boss adapter for 50mm pipe
    And just wondering how reliable those push in rubber adapters are.

    https://www.screwfix.com/p/floplast-boss-adaptor-50mm/53507

    Will be below floorboards so want something thats not going to give any problems down the line.

    Seen a few plastic solvent weld ones but not for 50mm pipe.

    How do you rate the rubber ones?
     
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  3. Baths'N'Gas

    Baths'N'Gas

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    I only use the rubber ones personally
     
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  4. 600rob

    600rob

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    Cheers. For some reason im not that confident in them especially when the branch will be under the floor....Im sure they're fine but the idea of solvent welded seems more permanent to me.

    Cant seem to find much so might need to put a little trust into the rubber ones
     
  5. Hugh Jaleak

    Hugh Jaleak

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    I'd be very wary of using those under the floor, too much risk of it coming apart IMO. What exactly are you wanting to achieve?
     
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  7. 600rob

    600rob

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    Thats my main concern.

    I want to fit a 50 mm waste pipe to the pre drilled boss on this

    https://www.screwfix.com/p/floplast-sp581g-boss-pipe-grey/18246

    So far all ive managed to find is the rubber 50mm adapter
     
  8. Hugh Jaleak

    Hugh Jaleak

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  9. OvertonPlumber

    OvertonPlumber

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    I only use solvent weld, had too many old rubber ones leak. Plus the rubber ones never hold up on a soiltest. Any plumbers merchant will do you 50mm boss adapters.
     
  10. 600rob

    600rob

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    Thanks folks. founds this which is solvent weld on the boss side and compression for the pipe which might do the job aswell
     
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