Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
paceman

Septic Vent Freezup

7 posts in this topic

A question for the experts. Last winter when it got super cold my septic exhaust pipe on the roof would form a solid ice ball over it. I would then crawl up there with a bucket of hot water and thaw it out. What could I do to prevent that from happening this winter.

Share this post


Link to post
Share on other sites

This is a very common problem in MN, it happens to my vents too. I asked my plumber and he said they didn't have a really good answer except in real bad circumstances there was some fan/blower type thing they could put on it to keep it open due to more air. I am planning to insulate around my pipe going through the attack before winter to see if this will help any, but I think it will be marginal. Really tough to handle below zero weather we have here...

Share this post


Link to post
Share on other sites

IT will take a little work, but you can increase the size of your vent pipe, in the attic, and going through the roof.

Most vents are 2" going into the attic then upsized to 3" going through the roof. This upsizing is to help aid in condensation freeze up. You can always take it to 4". However, all this will really do is prolong the pain. If you are prone to common freeze ups this will not solve it, just reduce it. You're still going to have to climb the ladder with a bucket of water.

Share this post


Link to post
Share on other sites

Hard the explain, but here goes anyway. This works like a charm usually. Solder a copper tee fitting to the end of a full length 3/4" rigid copper pipe. Then solder two short copper pipe stubs to the other ends of the tee fitting. Shove the copper pipe down the vent, so that the tee will rest on the top of the vent pipe. Air will vent through the pipe and up and out the tee fitting, without any ice collecting. It wouldn't need to be a full 10' length of pipe either.

Share this post


Link to post
Share on other sites

I've heard something along those lines before, CK.

Bob

Share this post


Link to post
Share on other sites

Another way is if the vent is too high above the roof the moisture has that height to cool and freeze in that small space(in the pipe)cut the pipe shorter and the moisture has less enclosed area to cool & freeze before it leaves the pipe

Share this post


Link to post
Share on other sites

Interesting on the copper pipe. I'm guessing some of the moister is condensing on the copper before it hits the cold vent.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Inevitably at least twice each season I will leave the house, drive 45 minutes and walk some of my favorite grouse spots for hours and hours, seeing nothing.  Admitting defeat on that day, I will drive 45 minutes back home, only to find a covey of birds in the driveway...
    • Colonel E.H. Taylor Small Batch Maker's Maker's 46 Bulleit Glenmorangie Highland Single Malt   Copperwing Distillery in St. Louis Park has a nice smooth whiskey. Supposed to introduce a new bourbon in a couple weeks too.
    • Hey featherslayer, you gonna register that nice bird of yours pretty soon?
    • cool find!  sure looks like a Swainson's.  
    • Great info.   Thanks Steve!   Jim
    • Came across this hawk on Earth Day at the edge of town. I've been told dark morph Red-tail, dark morph Swainson's and dark morph Broa- winged. Anyway, it's a dark morph some kind of hawk.
    • Yes it was.  I really needed one more layer today.  Lots of jakes and hens seen by us this morning.  Still looking for the toms.  Hope you had more luck.
    • There are a lot of apps available for that. Search your app store for "phone tracking" or something similar. Many give you the ability to share your positions so you both can see each other live. You might even have an app already on your phone. For example, I have Lookout Security installed on my phone and it includes the ability to find the location of my phone from another phone or PC. 
    • Watch your City Ordinances.  Some city's require a back-flow preventor, and it can be VERY expensive. I have both the battery backup, and the water driven sump pumps in my pit--all at different elevations, and feel very confident. When the water comes up, and the power goes out, the battery backup starts working.  After that the water driven sump pump will kick in.  The water driven pump will keep pumping until the power is restored and the main pump returns everything to normal. There is always water pressure in a power outage (from the tower).  Cities keep the tower full for fire protection
  • Our Sponsors