(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: 1/2" or 3/4" tub valve?

  1. #1
    DIY Member stephenson's Avatar
    Join Date
    Oct 2011
    Location
    Northern Virginia
    Posts
    61

    Default 1/2" or 3/4" tub valve?

    We don't like the handles Kohler offers for tubs ... trying to stay with Kohler because wanted 3/4" so would fill as fast as possible ...begs the question ...how big a deal is it, really, between the two sizes in real world usage? We are on well with pressure tank and don't have pressure issues anywhere ...this combined with how often a tub is really used (we figure about 10 times a year) ....

    Thoughts?

    Thanks!

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,388

    Default

    My first choice would not be Kohler, but that's another story. Look at the detailed spec sheets - you may have to call Kohler. They will list gpm at a certain pressure for each valve. Figure out how big of a tub you want to fill, then decide if the minutes saved is worth the extra money the larger valve costs. Only you can decide on the cost/benefit breakpoint. It somewhat depends on how big the tub is. What's your tolerance for the time it takes to fill it up?

    Kohler makes some nice stuff (and some I think is lousy!), but because they do not have a standardized set of 'guts' they build off of, replacement parts tend to be hard to get and expensive. This is opposed to someone like Delta that has relatively few 'guts' and then just changes the trim...when it comes time to repair it (and all eventually need something replaced), it's cheap and readily available for the most part. Kohler is infected with NIH syndrome...plus, they always seem to think they can make it better (which in itself, isn't bad, when done sensibly), so their designs often end up weird, and when they don't actually work out well, changed often. Ask a supplier to look at their parts catalog...it looks more like a big city phone book - the main reason nobody stocks many Kohler repair parts.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,618

    Default

    If you do not like Kohler's handles why are you staying with Kohler? LOTS of companies make 3/4" valves, but what size pipes do you have going to it?
    Licensed residential and commercial plumber

  4. #4
    DIY Member stephenson's Avatar
    Join Date
    Oct 2011
    Location
    Northern Virginia
    Posts
    61

    Default

    To hj's question first ...wife. Between deciding Kohler for shower and now, she decided didn't like Kohler trim for tub. I don't mind paying a bit extra for Kohler sometimes, but only when I know what it is I'm getting for the extra money.

    Have 1" almost to bathroom then goes to 3/4" all the way to shower and tub.

  5. #5
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,618

    Default

    with Kohler about the only "thing you get for your money" is the Kohler name. 1" copper or PEX? If PEX, then you really only have 3/4" going to the bathroom.
    Licensed residential and commercial plumber

  6. #6
    DIY Member stephenson's Avatar
    Join Date
    Oct 2011
    Location
    Northern Virginia
    Posts
    61

    Default

    Even smaller diameter ... once inside the bathroom I went from copper to CPVC, so using 3/4 valves in shower to 3/4 and then to 1/2 for shower heads ... and, 3/4 to tub ... at this point can choose either 3/4 or 1/2, but 1/2 less expensive and could even go to single handle (per wife's wishes).

Similar Threads

  1. Replies: 0
    Last Post: 04-28-2012, 09:14 AM
  2. How to go from 1/2" copper to 1/4" compression fitting, with a ball valve inbetween
    By Studly in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 27
    Last Post: 11-06-2011, 01:11 PM
  3. Leaking Main Water Valve, can I just replace "innards"?
    By Minjin in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 14
    Last Post: 09-24-2011, 01:16 PM
  4. Replies: 3
    Last Post: 08-09-2010, 06:44 PM
  5. Delta Monitor 1700 (1768) "Graves" tub/shwr valve
    By holybuzz in forum Shower & bathtub Forum & Blog
    Replies: 5
    Last Post: 01-13-2007, 08:03 AM

Bookmarks

Posting Permissions

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