+ Reply to Thread
Results 1 to 3 of 3

Hybrid View

  1. #1
    Join Date
    Oct 2013
    Posts
    1

    Default Possible to fix? Drain valve broke-off corroded home-heating steam boiler

    Regarding: 25 year old Well-Mclain Residential Steam Heat Boiler

    Problem: boiler drain valve connection corroded, broke-off along with female threads of inside connection. The threads of inside pipe are stuck in the original drain valve itself, with corroded edges protruding out the boiler-side valve male connection.

    Cause: I was screwing a hose to the boiler's drain valve, but since a bit rusty, male connection of hose was having trouble grabbing onto female threads of valve. I gripped the value, jiggled the male hose end to level it, and then applied some pressure on the valve straight down, while at same time, applied pressure to male hose connection straight up to get the two ends to mate/connect. I mistakenly applied more pressure downward on the value, breaking the valve off a very corroded female connection on the boiler drain pipe. (yes, I know better than to use force to solve a frustrating hardware problem, but I was cold & tired at 2am, blah, blah, and had some unused stupid points for the month. Ouch.)

    Effect: 1. Boiler is unusable without valve fitted on drain pipe. 2. Of course, when the valve broke off, all the water from the entire home's steam heating system--boiler, 9 steam radiators on 1st and second floor of home, and all connecting pipes--instantly gushed out & drained onto my basement floor. 3. Now I have no threads to connect value to, just two sides of a corroded end of boiler drain pipe at point just inside beyond boiler cover. 4. I now have broken valve sitting next to my keyboard making fun of me. 5. I am cold (nighttime temps now dropping to 32-34. 6. I'm nervous I have to spend $ I can't spare on an new boiler I can't live without.

    Bottom-Line Question: I'm usually very handy (& more careful) with home repairs of all kinds. Is it both feasible & reasonable for me to try and fix this myself? Is it worth trying to take the boiler cover off and replace the drain pipe connected directly to the boiler?

    Summary: I'm c-c-cold. Please advise if the boiler drain pipe can be repaired by a handy homeowner or a knowledgeable plumber? I'm trying to avoid having to purchase an entirely new boiler for another 5 years or so.

    Thanks for any thoughts, suggestions!
    Last edited by benmajor; 10-24-2013 at 12:23 PM. Reason: clarity

  2. #2
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: Possible to fix? Drain valve broke-off corroded home-heating steam boiler

    IF (we'll get to this later) the boiler isn't rusted to death you can try;

    1- Cut the remaining valve part at 5 and 7 o'clock just far enough as not to damage the threads of the boiler housing. Chip out the small piece between the cuts, then pry out the larger piece. Thin, flat screwdrivers work well for part 2. Once removed, clean the living daylights out of the rusted boiler opening before using liquid teflon to screw in a new brass valve.

    2- Use a reverse screw removal tool. These are reverse spiral wedge shaped drill bits that grab onto the old valve threads and unscrew the old valve. You might need to heat the old threads with a torch for a spell.

    If I had to choose I'd try #1 first.

    Seeing how your boiler is in it's senior years, have you considered getting a newer, more efficient one?

  3. #3
    Join Date
    Nov 2012
    Location
    central pa
    Posts
    98

    Default Re: Possible to fix? Drain valve broke-off corroded home-heating steam boiler

    I have done Houston,s #1 solution a few times and it is a pain but it works if the threads are really rusty I doubt you would have allot of luck with #2

Tags for this Thread

Posting Permissions

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