DWV Pipe freeze, drain backups and clogs

Reply

  #1  
Old 01-25-14, 06:48 PM
Member
Thread Starter
Join Date: Jan 2014
Location: USA
Posts: 2
DWV Pipe freeze, drain backups and clogs

In COLD Wisconsin! Our DWV on roof has been freezing shut so we have had to spray hot water on/in the pipe several times now to make sure it is still venting (at least a little). Had to do it this morning. This week the basement single basin sink and basement bathroom sink clogged. We used the baking soda vinegar trick on both sinks (overnight) and it appeared to work by the next morning but later in the day when we ran water in these sinks BASEMENT DISHWASHER clogged and overflowed onto the floor. Today we bought some drain cleaner and put it in both basement sinks. Later we started to run the UPSTRAIRS main dishwasher and it drained into both basement sinks! We also removed the septic pipe access cover in the basement to see if maybe it was frozen but there was some water in it and using a clog snake we couldn't find any blockage. I keep thinking the DWV problem has something to do with this but am otherwise at a loss on what is causing this or how to fix it! Please help! Thanx
 

Last edited by NKAYP; 01-25-14 at 07:04 PM.
Sponsored Links
  #2  
Old 01-26-14, 03:03 AM
Norm201's Avatar
Member
Join Date: Sep 2013
Location: Western NY on edge of eastern Lake Erie (not NYC)
Posts: 6,846
Likes Received: 18
Is the roof vent sticking straight up, open to the elements? If so you might want to glue on a goose neck so the opening points down as opposed up . Are any of your drains protruding out beyond an overhang on an outside wall? Many times a kitchen sink located on an outside wall that will overhang the foundation will not be properly insulated. The drain will freeze and back-up takes place.
 
  #3  
Old 01-26-14, 09:42 AM
Member
Thread Starter
Join Date: Jan 2014
Location: USA
Posts: 2
Yes, the roof vent sticks straight up we had this problem last year and even bought an elbow to fix it but never got around to installing it due to our very steep roof. None of the plumbing extends beyond the foundation or overhangs but the kitchen sink is on the North wall and with all the cold temps may still be causing a frozen drain. This is a newer house but who knows how much insulation they may have used. Thanks for the suggestions.
 
  #4  
Old 01-26-14, 03:12 PM
Norm201's Avatar
Member
Join Date: Sep 2013
Location: Western NY on edge of eastern Lake Erie (not NYC)
Posts: 6,846
Likes Received: 18
Just another thought. Is the drain line a long twisting length going to the main drain? I have a situation that happens about once every two years. Because of the 30 feet and 4 90 degree els, my kitchendrain will build up and clog almost at the point where it enters the main drain. Had to put a union in and snake it from both directions.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes