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Featured Pipes fell off !

Discussion in 'Help and Advice' started by richard, Mar 7, 2011.

  1. richard

    richard Registered

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    Just went to do my weekly water change and noticed that the down pipe from the main tank to the sump was leaking at the joint, only just touched the pipe slightly and it fell off.

    Luckily the return pump was off but if this had happened whilst I wasn't at home, my bedroom would have been flooded, again !

    Can't see why this happened, the joint was solvent welded together and then sealed with silicone on the outside.

    Not sure what to do now, I can't let this happen again, don't know if i can risk just solvent welding it again.

    I'm going on holiday in a month so really need to get a permanent solution.

    Is there any other options, can you buy pipe that fit together without solvent welding them, or am I just not doing it right?
     
    Last edited: Mar 7, 2011
  2. Neil

    Neil Registered

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    That pipe are you using ?
     
  3. rabbut

    rabbut Registered

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    If you welded it and it's fallen off, you probably didn't apply enough solvent weld :wink:

    Clean down the pipe and the bulkhead, dry them well, clean with alcohol based cleaner, then smother the inside of the bulkhead and outside of the pipe with the weld. Insert, then 1/4 turn either way to seal. Allow to set for 48 hours and it's good to go :smile:

    EDIT, Neil beat me to it, and rases a good point.
     
  4. Neil

    Neil Registered

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    Or its push fit pipe not solvent weld
     
  5. richard

    richard Registered

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    The ones that come with the godiva executives from coventry, pvcu.

    The pipe is solvent welded into a connector that then screws onto the screw end of the bulk head.
     
  6. Neil

    Neil Registered

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    what did you use to solvent weld it together ?
     
  7. richard

    richard Registered

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    It never seems strong enough to me as all that pressure from the water is pushing down on the pipe making it loosen from the connector.

    I've been using the liquid solvent weld, is the gel any better ?
     
  8. richard

    richard Registered

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    Its the one that came with the godiva
     
  9. Whipitup

    Whipitup Registered

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    If it's Upvc and solvent welded properly it WILL NOT come of, ever.

    The clue here is the welded bit, the joint of the two pipes becomes one.
     
  10. Neil

    Neil Registered

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    Go to your local plumbing supplies and get some solvent cement (they may want age ID)
     
  11. Whipitup

    Whipitup Registered

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    Having just read that back it sounds sarcastic...............not meant to be that way!!
     
  12. richard

    richard Registered

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    Thats what I thought and I assumed that they had been welded together.

    Will try and get some tomorrow and give it another go.

    Not sure what to do now though as my sumps disconnected from my tank.

    I'll have to put the spare heater in the main tank and just hope everything stays alright.

    And just when everything seemed to be going so well.

    Thanks
     
  13. screwloose

    screwloose Registered

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    as said above,,solvent weld is ace,,and the joint pretty much welds together


    maybe the stuff used in the first place, was either incorrect, or poor quality.


    a small tip for when you weld them together.

    get the joint positioned how you want it, and then mark with a marker pen.
    reason being,, once you push it on you wont be able to swivel it round, so needs to be in the right place as you push it on...oh and put plenty on ;)
     
  14. richard

    richard Registered

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    Its quite a loose fit, will this matter or should the solvent weld work anyway.

    Thanks for the advice.
     
  15. screwloose

    screwloose Registered

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    should be a snug fit ,,from what i remember
     
  16. rabbut

    rabbut Registered

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    Indeed, it should be a sung fit
     
  17. richard

    richard Registered

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    I wouldn't say it was a snug fit, the pipe doesn't stay in when you let go, it just falls out.

    Would it be better to get a new pipe and connector that fit better.
     
  18. screwloose

    screwloose Registered

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    i would...that doesn't sound right...and probably the reason it failed
     
  19. Whipitup

    Whipitup Registered

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    Yep, the external diameter of the inner pipe should be the same as the internal of the outer pipe otherwise the solvent weld will not work.

    Wrong pipes supplied????
     
  20. richard

    richard Registered

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    I think its the connector thats slightly to small as the pipe fitted well into the other joints.

    Got some solvent cement so just need to get a connector that fits right
     
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