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Thread: Delta 600 leak question

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  1. #1

    Default Delta 1300 leak question

    Hi all,

    We recently moved into a new home (built in 1985) and have a leak from the spout in our tub/shower. I *think* we have a Delta 600 series fixture in there, but I'm not 100% positive (see pic #1 below). From extensive online research, I'm thinking the spout leak can be cured by either replacing the cartridge or possibly just the seals. The two big problems I'm having are 1) not being able to remove the cartridge and 2) figuring out what model I have so I can take the cartridge to the store (or website) to buy the correct parts. When I called Delta the CSR couldn't really help me at all given the age of the faucet and that we're not original owners.

    I think I need to take off that brass "collar" before the cartridge comes off (in pic #2), but it just turns in place - not really unscrewing. Do I need to put a pipe wrench or channel locks on the collar or at that ribbed piece? Or somewhere else? I replaced a cartridge at our previous house and that was a piece of cake (I think it was a 1700 series from 1997). I'm frustrated I can't figure this guy out!

    Any advice on what model we have and how to take it apart would be EXTREMELY helpful. I have a whole bunch of projects at the house and this leaking spout is the one that's killing me!

    Sorry for the long post, but I wanted to try and give as much detail as possible. Thank you.

    [sorry for the big 2nd picture. I wanted to try to include some detail]
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    Last edited by pjsammy; 02-17-2009 at 10:09 AM.

  2. #2
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    San Diego


    It is a Delta 1300 series. Readily repairable with a BIG caveat:

    You can cause fatal ( to the valve!) damage if you try to unscrew that cartridge retainer nut with too much force. It will twist off some vulnerable tubes further inside. If you take off the round plate, you will see these tubes. First, we can see in the picture that mineral and gunk have affected that screw on nut. Start now applying white vinegar all around the nut. Repeat several times a day for a few days. Then GENTLY try to unscrew, but not too hard.

    The most used techiniques to remove the nut are these :

    a) Carefully apply heat to the nut with a small torch. This will tend to expand it and allow it to unscrew


    b) using a small hacksaw blade held in hand, or a Dremel wheel, slice through the nut, being as careful as possible to not damage the underlying body threads. These threads are not part of a seal, so it is not too critical.

    Regardless, you will want to replace the nut, and they are readily available at plumbing supply stores ( not necessarily blue or orange.) Your trim is also readily available, but the antique brass color may not be.

    The cartridge you need is RP19804. The limit stop mechanism on the new one has changed from yours, but it is completey the correct replacement part. Just follow the instructions for the limit stop.

  3. #3


    Thanks for the prompt response!

    Knowing it's the 1300 series is HUGE!

    To make sure I fully understand, the cartridge retainer nut is the ribbed ring between the brass collar and the cartridge itself, correct?

    Let's just say a certain person happened to try to turn that ribbed ring with a pipe wrench recently and it happened to turn counter-clockwise only about 3-5 degrees. What are the chances that that was enough to cause some fatal damage? Should I consider cutting an access panel on the otherside of the wall to inspect? (the other side is in the master bathroom and would be pretty easy to cut into for checking). We used the tub last night for my son's bath and I didn't notice any major problems (yet). If I had done some damage, would it be apparent after using the tub?

    Thanks again!!

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    Take the escution (sp?) off and look. If the tubing is crimped closed, you might have a big problem! It should be evident if you look. Some people just literally tear them off.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Yakima WA


    I was recently faced with somewhat the same problem. I could my valve apart OK, but the antique brass is history. All that is available is chrome. I did my self a favor and made my wife happy at the same time by replacing the entire valve with a Delta 1700. This give you anti scald and you can adjust the flow as well. I'd advise going to a "real" plumbing shop. Sometimes the Delta parts and fixtures at the Big Box Stores are not of the same quality as specialized shops carry. The price isn't too much higher, and you can get excellent advice if needed.

  6. #6


    Thanks for the tip. I certainly considered replacing the whole valve, but I think that's a little over my head at this point. And rather than pay a pro whole bunch, I'll probably just wait until we replace the whole tub/shower unit within the next 2-4 years.

    Also, the cartridge retainer nut is the ribbed ring between the brass collar and the cartridge itself, correct? I want to make sure I focus my effort on the right part!

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