Page 1 of 2 12 LastLast
Results 1 to 25 of 29
  1. #1
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978

    Toilets - What keeps water in the bowl?

    We had a pretty good rain the other night and the toilet bowl just kept draining in the upstairs bathroom everytime we used it. Flush, the water wouldn't go down immediately, but fill up the bowl and it would then slowly drain out. This morning, after the rain, everything is fine and is working normally.

    The downstairs toilet worked fine during the rain. No problems at all.

    Any clues, suggestions?

    TIA
    Topper
    "I was a good student. I comprehend very well, OK, better than I think almost anybody," - President Trump comparing his legal knowledge to a Federal judge.

  2. #2
    Mid
    Mid is offline
    Thailand Expat
    Mid's Avatar
    Join Date
    Aug 2007
    Last Online
    @
    Posts
    1,413

    com.au


    Thai Plumbing .................. ,

    some how the downstairs loo is syphoning the up-stairs one

  3. #3
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    Pipe from the upstairs toilet probably needs an air vent in it. The outlet into the cess pit maybe lower than the downstairs toilet outlet.

  4. #4
    Thailand Expat
    Whiteshiva's Avatar
    Join Date
    Dec 2005
    Last Online
    06-05-2019 @ 08:27 PM
    Location
    Nontaburi
    Posts
    4,632
    I was going to answer "gravity", but then I thought the better of it........

  5. #5
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    Ok...but why is it only affected when it rains? I thought maybe the increased water flow thru the drainage might be causing a venturi sort of effect on the toilet drains, but couldn't figure out why both toilets weren't affected. Also, I live in a townhouse....not a detached house.

  6. #6
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    You have a cess pit, rainfall increases water level?

  7. #7
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    Naw...live in town...row of townhouses in amongst many other townhouses...

  8. #8
    RIP
    Happyman's Avatar
    Join Date
    Aug 2007
    Last Online
    31-01-2011 @ 09:29 PM
    Location
    Rawai Phuket
    Posts
    6,010
    Sounds like it is a syphoning effect
    If you are on a town drain system it is probably that the grey/ surface water drain connects to the foul water system ( sewer ) near a bend or restriction and it is a venturi effect .
    We had exactly the same thing when I lived in Taipei

  9. #9
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    Thanks for the help all!

  10. #10
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    Quote Originally Posted by CSFFan
    Naw...live in town...row of townhouses in amongst many other townhouses...
    Lets try and get your understanding of where you think your poo goes..

    Ok so tonight you go out and have 15 pints of guiness and the hottest indian meal you have eaten in your life, tomorrow morning you rush to the toilet and have a real great pony, when you finish you look down on it fondly and slowly decide to flush it away rather than getting your girlfriend wife to come and have a look at it, so where do you think it goes?

  11. #11
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    ahhh....to the sewage treatment place via an amazing network of similarlly shit filled pipes?

  12. #12
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    ^I thought you was in Thailand, where is this sewage treatment place?

  13. #13
    Days Work Done! Norton's Avatar
    Join Date
    Oct 2007
    Last Online
    @
    Location
    Roiet
    Posts
    29,204
    Quote Originally Posted by dirtydog
    You have a cess pit, rainfall increases water level?
    Happens at my house when it rains as well. Ground water goes up and sometimes toilets backup.

    Marmite can add detail technical explanation.

  14. #14
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    fuck if I know...

  15. #15
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    Quote Originally Posted by Norton
    Happens at my house when it rains as well. Ground water goes up and sometimes toilets backup.
    Just the opposite for me...the water drains OUT of the upstairs toilet.

  16. #16
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    This may come as a bit of a shock so you may want to sit down...







    All your poo is under your house, it may also be in your back garden, in Thailand you get to keep your own poo and do with it whatever you wish, the toilets will be piped off to an underground soak away cesspit on your land

  17. #17
    Thailand Expat
    dirtydog's Avatar
    Join Date
    Jun 2005
    Last Online
    @
    Location
    Pattaya Jomtien
    Posts
    58,776
    If you have a look in your downstairs bathroom you will probably find a brass circle with 2 indents in it, it will have a radius of about 10 cm, you can unscrew this, in there you will find water, have a taste of it to see if it is shower water or poo water

  18. #18
    Days Work Done! Norton's Avatar
    Join Date
    Oct 2007
    Last Online
    @
    Location
    Roiet
    Posts
    29,204
    Quote Originally Posted by CSFFan
    Just the opposite for me...the water drains OUT of the upstairs toilet.
    Happyman has the answer. Empty toilet bowl is not near the problem one has with an overflowing bowl so count yourself lucky. If you're bothered by having to take a dump into an empty bowl, flush first, let it fill up and quickly squeeze one off before the water siphons away. Problem solved.
    Whenever you find yourself on the side of the majority, it is time to pause and reflect.

  19. #19
    Have you got any cheese Thetyim's Avatar
    Join Date
    Jan 2006
    Last Online
    @
    Location
    Mousehole
    Posts
    20,902
    ^
    An empty bowl is a problem because it lets the poo poo smell in

  20. #20
    Days Work Done! Norton's Avatar
    Join Date
    Oct 2007
    Last Online
    @
    Location
    Roiet
    Posts
    29,204
    Quote Originally Posted by Thetyim
    An empty bowl is a problem because it lets the poo poo smell in
    All relative. 1. Poo poo smell in the bathroom or 2. poo poo and smell in the bathroom. Your choice.

  21. #21
    Thailand Expat
    Marmite the Dog's Avatar
    Join Date
    Jun 2005
    Last Online
    08-09-2014 @ 10:43 AM
    Location
    Simian Islands
    Posts
    34,827
    Quote Originally Posted by Norton
    Marmite can add detail technical explanation.
    Umm, yes... quite.

    I shall make a special effort to eat lots of cabbage the evening before we go to Hua Hin so you can relive the experience.

  22. #22
    Custom Title Changer
    CSFFan's Avatar
    Join Date
    Dec 2007
    Last Online
    Yesterday @ 06:45 PM
    Location
    Bangkok
    Posts
    7,978
    Quote Originally Posted by dirtydog
    All your poo is under your house, it may also be in your back garden, in Thailand you get to keep your own poo and do with it whatever you wish, the toilets will be piped off to an underground soak away cesspit on your land
    DD, I live in a townhouse in the middle of Bangkok. No garden, no cess field or any land. No brass ring in the bathroom downstairs either. I can take pics if you ain't quite understanding the setup here. I'm not in a house but a townhouse piped up to the public shit collection system.

    Quote Originally Posted by Norton
    Empty toilet bowl is not near the problem one has with an overflowing bowl so count yourself lucky. If you're bothered by having to take a dump into an empty bowl, flush first, let it fill up and quickly squeeze one off before the water siphons away. Problem solved.
    Agree completely that an empty bowl is better than an overfilling one. Thanks!

    Quote Originally Posted by Thetyim
    An empty bowl is a problem because it lets the poo poo smell in
    Exactly, imagine being able to smell all the shit thats come from every house in 1 kilometer area. Two burning candles took care of that problem though.

  23. #23
    Days Work Done! Norton's Avatar
    Join Date
    Oct 2007
    Last Online
    @
    Location
    Roiet
    Posts
    29,204
    Quote Originally Posted by dirtydog
    Pipe from the upstairs toilet probably needs an air vent in it.
    This will fix the problem. Vent pipe in the sewer pipe after the trap will cause air from the vent rather than the water to be sucked back down.

  24. #24
    Have you got any cheese Thetyim's Avatar
    Join Date
    Jan 2006
    Last Online
    @
    Location
    Mousehole
    Posts
    20,902
    Agreed.
    But first look for an existing vent that may be blocked

  25. #25
    RIP
    Happyman's Avatar
    Join Date
    Aug 2007
    Last Online
    31-01-2011 @ 09:29 PM
    Location
    Rawai Phuket
    Posts
    6,010
    Quote Originally Posted by Happyman View Post
    Sounds like it is a syphoning effect
    If you are on a town drain system it is probably that the grey/ surface water drain connects to the foul water system ( sewer ) near a bend or restriction and it is a venturi effect .
    We had exactly the same thing when I lived in Taipei
    Further to my last post -
    IF it is a venturi effect as I suspect it is - then the reason that your upstairs crapper drains out and your downstairs one does not is that the static head is greater and there fore more susceptable to pressure differences . The suction caused by the venturi can tip the balance easier and it is not enough to disturb the downstairs crapper .

    Thats what the Taipei building maintenance people told me and it seems reasonable They fitted a non- return air bleed valve upstairs and it cured the problem.

    Happy crapping !

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •