Washing machine line with vent

Reply

  #1  
Old 03-09-08, 09:51 AM
A
Member
Thread Starter
Join Date: Jan 2008
Location: Rhode Island
Posts: 116
Received 0 Votes on 0 Posts
Washing machine line with vent

I am moving my washing machine to an area in my basement with no drain plumbing. I will have to install about 24 feet of drain to the sewer pipe out to the street. There is nowhere near the washer where I can install a vent. I attached a drawing of my intention. Where can I put the vent? Can I follow along and above the drain and then connect it to the main vent above the sewer connection? Your thoughts?
 
Sponsored Links
  #2  
Old 03-09-08, 10:58 AM
Terd Herder's Avatar
Member
Join Date: Jan 2008
Location: Northern Illinois
Posts: 301
Received 0 Votes on 0 Posts
Yes, you can run the vent back to the main one. Start your vent on the same elevation as the trap. Then give it pitch as you make your way back to the main vent (so it drains back to the washer, opposite the waste). Good luck!
 
  #3  
Old 03-11-08, 12:43 AM
F
Member
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,495
Received 35 Votes on 27 Posts
If that vertical pipe that you have labeled as "only vent pipe to roof" is also the drain from your other fixtures then it is not a vent but a waste stack. If it has the toilet discharge connected to it then it is a soil stack.

Your vent from the laundry discharge MUST connect above the highest water level of any fixture draining into the stack.

What this means is if this vertical pipe IS only a vent for the sewer as it leaves the building then you must connect the vent from the laundry standpipe trap to the stack at a point above the opening of the laundry standpipe.

However, if this vertical pipe is in reality a waste or soil stack then you MUST run the vent from the laundry standpipe trap UP to a point above the "flood plain" (the point where water would overflow the sink or bathtub) BEFORE connecting into the stack.

Your LOCAL code may allow you to use what is called an "air admittance valve", sometimes known as a Studor vent (from the manufacturer) in place of a more conventional vent.
 
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
 
Ask a Question
Question Title:
Description:
Your question will be posted in: