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Thread: sewer vents

  1. #1
    Member mit's Avatar
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    Default sewer vents

    I tired of getting up on the roof of the house to open the vents. Anybody got any good Idea's on how to keep them Ice free??????
    Tim

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    Moderator Daveinthebush's Avatar
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    Default Research

    When I lived in Shaktoolik, at -50-60 temps. the vents in the school would freeze up. I was able to find a company that made a vent pipe heater. But it was many years ago. But they do exist.

    Vietnam - June 70 - Feb. 72
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    Member mit's Avatar
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    Default

    Quote Originally Posted by Daveinthebush View Post
    When I lived in Shaktoolik, at -50-60 temps. the vents in the school would freeze up. I was able to find a company that made a vent pipe heater. But it was many years ago. But they do exist.

    That is what I have been thinking about. Been living in the place for 20 years seems to be getting worse. I think I will crawl up in the attic and insulate the pipe as it goes through.

    Did you ever meet the Shishmaref Cannonball while you where at Shaktoolik?
    Tim

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    Default type of pipe

    What is you sewer vent made of? ABS, PVC, BI ?

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    Default

    Quote Originally Posted by helmuth View Post
    What is you sewer vent made of? ABS, PVC, BI ?
    ABS......................
    Tim

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    Moderator Daveinthebush's Avatar
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    Default Nope

    Did you ever meet the Shishmaref Cannonball while you where at Shaktoolik?

    No, never heard of it.

    Vietnam - June 70 - Feb. 72
    Cancer from Agent Orange - Aug. 25th 2012
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  7. #7
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    Default heat tape

    You can wrap heat tape like you would use on your well on your vent also. I just go up a couple times a year and dump 5 gallons of hot water down the vent. I have also heard of useing hot RV antifreeze. Just make sure it is the rv stuff so, it doesn't kill the bugs in the septic tank.

  8. #8
    Moderator Daveinthebush's Avatar
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    Default Fire

    If I remember in my research in Shaktoolik, that fire could be a problem. I don't think wrapping the pipe on the outside would do much good. It would have to get too hot to be effective on the inside of an uninsulated pipe. The tapes I found, went on the inside and were not recommended for PVC.

    IF I was going to do it with PVC. I would find an access point inside the house and drill a 3/4 - 1" hole in the vent pipe. Take the heat tape and insert it into a piece of 3/4 copper pipe, cap on one end, 45 elbow on the other with a 1" nipple on the 45. Insert the copper from the top, down to the 1" hole and pull it through and seal around the 1" nipple. (Might have to remove the plug to pull it through) Run the wire from the pipe wrap to an outlet or somewhere you can plug it in if needed to thaw the pipe.

    Does this make sense? Then you are heating from the inside of the pipe when you need it and not in direct contact with the PVC.

    Does this sound practical to you other do-it-yourselfers?

    Vietnam - June 70 - Feb. 72
    Cancer from Agent Orange - Aug. 25th 2012
    Cancer Survivor - Dec. 14th 2012

  9. #9

    Default

    Gee, all I did to correct the iceing problem on the vent was to increase the size to 4" thry the roof and I have not had a problem since.

    Merle

  10. #10
    Member M Gho's Avatar
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    Default copper tube

    Cut a length of copper tube to fit inside and the heat conducted from below has kept my pipe clear

  11. #11
    Member Unalakleet yooper's Avatar
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    Default

    I painted the pvc pipe black to absorb heat and that helped alot

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    Default frost ?

    someone once told me to swab the inside of the pipe with vasoline,

    frost will no stick to it??

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    Default

    Quote Originally Posted by M Gho View Post
    Cut a length of copper tube to fit inside and the heat conducted from below has kept my pipe clear
    This subject came up at work last week too due to the cold temps here in the Interior. One fellow suggested a similar fix in that he said I bends a piece of rebar into a hook that won't fall completely down the vent so that it hooks over the top of the vent. He claims that the rebar will transmit the heat up and won't allow the frost to completely seal off the vent.

    Easy and cheap fix if it works. Meanwhile you are up there one more time to clean it out while installing the hook.

  14. #14
    Member mit's Avatar
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    Default

    Quote Originally Posted by Unalakleet yooper View Post
    I painted the pvc pipe black to absorb heat and that helped alot
    Thats a funny one
    Tim

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    Member Unalakleet yooper's Avatar
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    Default

    that maybe funny but it worked

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    Member mit's Avatar
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    Default

    Quote Originally Posted by Unalakleet yooper View Post
    that maybe funny but it worked

    The pvc is already black
    Tim

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    Default PVC

    The pvc is already black

    PVC is white, ABS is black!!

  18. #18
    Member mit's Avatar
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    Default

    Quote Originally Posted by Caleb Humphrey View Post
    PVC is white, ABS is black!!

    DOH
    Tim

  19. #19
    Member rimfirematt's Avatar
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    Default

    Hotcity2 has a good suggestion. It might be too late for you to do it. But oversizing the vents is a good way to avoid the ice.

  20. #20
    Moderator Adison's Avatar
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    Default Laugh!

    Quote Originally Posted by mit View Post
    DOH

    Now thats funny!!!!

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