Toilet fills when you pull lever and water goes down after the tank fills.

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by sxch14, Dec 16, 2011.

  1. sxch14

    sxch14 New Member

    Messages:
    1
    Location:
    Michigan
    I have a KOHLER Wellworth 2-Piece Round Front Toilet in White (bought at Home Depot for $150)


    It's in the basement connected to a septic. I do not know if there is a vent or not since I'm not the original installer. I just replaced the older toilet. It's been working for about 1 1/2 years but now I'm having a problem.

    When I flush the toilet the water level in the bowl goes up. After the tank fills then the water in the bowl slowly goes down and below where the water should be. This happened about a month ago and the next day it cleared and worked fine until this evening. So my question is the toilet bad or is there a venting problem or is the septic full?

    Thank you.
    Last edited: Dec 16, 2011
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,286
    Location:
    Cave Creek, Arizona
    The septic tank is full, or the drain line is plugged, or the toilet is plugged, all three give the same symptoms. There may, or may not, be a venting problem, but that is also only incidental.
  3. PM5K

    PM5K New Member

    Messages:
    154
    Location:
    San Antonio, TX
    Just had the same type of problem on a septic system. Depending on what's easiest, either try plunging it or check the septic. I'd check the septic first if it's not too difficult.
  4. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,308
    Location:
    Yakima WA
    Many Kohler toilets have a tendency to clog due to tight bends in the trap. This is not to imply that the other possibilities could be the problem, but I'd start with the plugged toilet possibility.
  5. PM5K

    PM5K New Member

    Messages:
    154
    Location:
    San Antonio, TX
    I definitely thought that was my problem, the line was full and I tried too aggressively to plunge it and I wound up blowing out the wax ring, which is why I recommended he check the septic level first, just from my experience a few days ago. I guess whatever you do don't get too excited with the plunger like I did, lol.
Similar Threads: Toilet fills
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Toilet fills by itself?!? Jul 27, 2008
Plumbing Forum, Professional & DIY Advice, Tips & flushmaster toilet fills/runs longer than normal Jul 2, 2007
Plumbing Forum, Professional & DIY Advice, Tips & Not fully seated PVC toilet waste lines problem??? Wednesday at 6:26 AM
Plumbing Forum, Professional & DIY Advice, Tips & Toilet Flange Removal Question Jul 16, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Another toilet venting question Jul 14, 2014

Share This Page