(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Using HW Copper for CW

  1. #1
    DIY Junior Member hagakure's Avatar
    Join Date
    Aug 2012
    Location
    nyc
    Posts
    16

    Default Using HW Copper for CW

    My sister's building (she lives with her fiance whos father owns the 6 family building) has been plumbed properly but the connection is wrong in the boiler room. I haven't been there to see but every apartment in her building is reverse hot water and cold water. The connections are 'right' at every fixture including the shower but hot comes when you turn the cold water handle and vice versa. If it was only the sinks I'd say just switch the speedy connections but it's also the showers and she wants it fixed.

    My question is, if it is indeed only connected incorrectly in the boiler room and an easy fix, is it advisable to reconnect, putting cold water into the copper pipes that previously held hot water? if so, how long should I wait until running water through the line? I don't want to damage the pipes and leave them with an even bigger project. It's a fairly old building but it may have been replumbed somewhat recently

    To answer any obvious questions, No I would not do anything without a permit and licensed plumber stamp, and I would never do anything unless I was 2000% sure I knew exactly what I was doing which is why I'm asking here.

    Am I correct in assuming I would just have to wait the usual time you would after installing new copper?

    I don't even use a wet rag when cleaning my joints because I'm paranoid about stressing the joints too soon and really you don't need a wet rag. A dry one works fine.

    Thank you

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,671

    Default

    YOu can run cold water through the pipe as soon as the joints "cool". But, someone should check the entire system first to see the ACTUAL problem, because it would take a seriously screwed up "plumber" to do something like that.
    Licensed residential and commercial plumber

  3. #3
    DIY Junior Member hagakure's Avatar
    Join Date
    Aug 2012
    Location
    nyc
    Posts
    16

    Default

    Quote Originally Posted by hj View Post
    YOu can run cold water through the pipe as soon as the joints "cool". But, someone should check the entire system first to see the ACTUAL problem, because it would take a seriously screwed up "plumber" to do something like that.
    Yes I'm only assuming that's the problem because the connections are all correct on the outside. right side for cold left side for hot. I've only been doing this 2 years and have very limited boiler room experience and no emergency experience so I wouldn't approach this lightly especially considering there are 5 other families in the building. New construction no problem. Renovation is exhausting just to think about.

  4. #4
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,671

    Default

    quote; Yes I'm only assuming that's the problem because the connections are all correct on the outside. right side for cold left side for hot.

    That is a "symptom" but there are many places the problem could be caused. The entire system has to be "traced" to make sure WHERE it occurred and how to correct it.
    Licensed residential and commercial plumber

  5. #5
    Plumber Winslow's Avatar
    Join Date
    Dec 2005
    Location
    Hawaii
    Posts
    450

    Default

    do the toilets have hot water coming into them also? Are the shower valves two handle or single handle?

Similar Threads

  1. Is It Okay To Spray "Great Stuff Foam" Around Copper Pipe and Copper Fittings?
    By turbocruiser in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 6
    Last Post: 11-01-2013, 09:34 PM
  2. Soldering.. copper to copper OR copper to brass.. which one?
    By lithnights in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 8
    Last Post: 03-02-2010, 05:15 AM
  3. Copper or PVC?
    By steve2278 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 12
    Last Post: 03-13-2009, 10:45 PM
  4. Why can't i use copper?
    By frankthetank in forum Pumps and Tanks Well Forum & Blog
    Replies: 8
    Last Post: 07-06-2007, 06:59 AM
  5. Just-For-Copper
    By buzzfan in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 20
    Last Post: 03-12-2007, 03:44 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
  •