Adjusting Bath Drain Trip Lever

Discussion in 'Shower & bathtub Forum & Blog' started by BS, Jun 3, 2007.

  1. BS

    BS New Member

    Messages:
    50
    Location:
    Central Ohio
    I recently installed a Gerber bath drain with a trip lever in a new bathtub, but I've been unable to adjust it so that the tub holds water without leakage. The other night I left about 40 gallons in the tub and the last of it drained out about 10-11 hours later. What's the trick?

    BTW, yesterday I learned that the ABS drum trap for the tub is no longer approved so I removed it and decided to replace it with a P-trap while I had the downstairs ceiling open. Right now the bottom of the tailpiece is open and I can look up into it and at the underside of the plunger. Would having it accessible from below help in adjusting the plunger so the tub holds water?

    - Bernie
  2. BS

    BS New Member

    Messages:
    50
    Location:
    Central Ohio
    The trick, I discovered, was to remove the manufacturing debris from the drain! I messed with it for quite a while and one of the times I pulled the linkage and plunger out of the overflow pipe, a 3/4" long piece of plastic was stuck to the plunger. It looks like dried polyurethane and is the same reddish color that appears at one of the factory-assembled connections. After that I was able to adjust it easily.

    I learned something new today: tub drains are designed to leak at the rate of one gallon per hour.

    I hope this information helps someone else out in the future.

    - Bernie
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,021
    Location:
    New England
    Well, I'm not sure they are designed to leak, but if they do, they have to do it slowly! It's just that it sounds like they don't have to be perfect.
  4. BS

    BS New Member

    Messages:
    50
    Location:
    Central Ohio
    Gerber Technical support called me back today and told me the drain is designed to leak at that rate. He quickly mentioned 2 or 3 reasons but the only one I can remember is to prevent the drain from freezing.

    - Bernie
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,021
    Location:
    New England
    If your bathtub is going to freeze, you've got more problems! I can't think of a good reason for it to leak, though, and don't think (wouldn't be the first time I was wrong), that this is a general situation...seems like a line they came up with to justify they had troubles getting it to seal effectively and economically.
  6. BS

    BS New Member

    Messages:
    50
    Location:
    Central Ohio
    My first call two days ago was to Customer Service and they told me about the gallon per hour design leakage but gave no reason for it. Today Tech Support repeated it and explained why when I asked. Come to think of it, my old tub always leaked by a little bit. Oh, well. Nothing to lose sleep over.

    - Bernie
  7. CHH

    CHH New Member

    Messages:
    225
    Location:
    Denver, CO
    If you need to use your tub as a reservoir during a disaster then a "design" leak rate is important.

    Ok, hopefully it's a once in a life time thing but it's still important...
  8. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,647
    Location:
    Cave Creek, Arizona
    leakage

    If the drain does not hold water, but most do, then the most convenient explantion from a "technical expert" is that it was supposed to do that. It is a lot easier than trying to tell the customer how to make it seal tighter, assuming the drain was machined properly so it would. Sort of like saying the hot water faucet is designed to drip water so you have instant hot water at the faucet 24 hours a day.
Similar Threads: Adjusting Bath
Forum Title Date
Shower & bathtub Forum & Blog Adjusting the flow rate of a rain head (Shower Rain Head) Oct 21, 2012
Shower & bathtub Forum & Blog adjusting the shower head angle Oct 27, 2010
Shower & bathtub Forum & Blog adjusting square d (9013 fsg-2) Jul 17, 2007
Shower & bathtub Forum & Blog Adjusting water temp on a Moen shower Jan 14, 2006
Shower & bathtub Forum & Blog $14k - Completed DIY Bathroom Remodel Aug 31, 2014

Share This Page