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Thread: Toilet Question

  1. #1
    DIY Junior Member DeeJay77's Avatar
    Join Date
    Aug 2013
    United States

    Default Toilet Question

    I replaced the flush fill valve, flapper, and flush handle. I dumped a bucket of water into bowl while flushing to see if the toilet trap and/or drain line beyond the toilet was semi-clogged. The toilet flushed immediately with help of the bucket of water, eliminating the possibility of a trap/drain clog. Then I also cleaned out the holes under the bowl rim with metal clothes hanger to no avail; toilet still barely flushes and swirls very slowly. Any suggestions?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    It is critical that both the bowl AND the tank get properly filled during a flush/refill cycle. If the bowl starts out less than full, it will not flush well. Flush the toilet, note where the water level is in both the tank and bowl after it's refilled. THen, take your bucket and slowly pour water into the bowl. If you can get the water higher in the bowl (it will take a few moments after pouring to stabilize), then the bowl is not being filled, and the flush can be poor. There are some aftermarket filler valves that are adjustable to get the balance right...you may need one of those.

    THen, if your toilet has a siphon jet (a hole down near the bottom of the bowl), this may be clogged. If it has one, this creates a jet of water to start the water leaving the bowl. If that is plugged up, it won't flush well. On some toilets, they used a float on the flapper valve...plumbers have reported finding several of those clogged inside the internal passageways. If your toilet design uses one of those, and you seem to have lost one, that may be your problem.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Plumber MichaelBukay's Avatar
    Join Date
    Jan 2013
    San Diego, California


    did you replace the flush valve and the fill valve, or just the fill valve or flush valve? what make is the toilet and how old is it?

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