Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-08-2006, 10:13 AM   #1
Newbie
 
Join Date: Aug 2006
Posts: 5
Rewards Points: 10
Default

Drain connection for basement utility sink


I would like to install a utility sink in my basement, but wanted to get some opinions about drain connections.

I have 4" cast-iron going out through my basement wall to the city sewer. The cast-iron runs horizontally for a while, then connects to a wye with a 45 going to a vertical stack that goes all the way up the house and through the roof. The other connector on the wye is capped with a cleanout plug. The distance from the floor to the center of the cleanout plug is 24".

I was hoping that I would be able to remove the cleanout, connect a PVC pipe (3" or 4"?), connect to a wye with a 2" or 1.5" and cap the other end of the wye with a new cleanout.

First question, is 24" too high off the ground for a utility sink p-trap to be connect for a gravity drain? I know I can mount the utility sink on blocks to get it raised up, but how high would I need to raise it? Should I consider using a pump instead?

Second question, how do connect the PVC to the cast-iron wye? The cleanout looks like it's screwed on to a pipe that has been fitted into the bell of the wye. If I wanted to use a 4" donut, I would imagine I would have to remove all of the oakum and lead from the bell of the wye. Could I use a donut on the pipe that cleanout is threaded on to?

chickenboo is offline   Reply With Quote
Old 09-09-2006, 08:35 AM   #2
Journeyman Plumber
 
Ron The Plumber's Avatar
 
Join Date: Jun 2006
Location: Eugene, Oregon
Posts: 1,994
Rewards Points: 1,000
Default

Drain connection for basement utility sink


Most tub stubs rough in at 15" off floor, thats 9" too high at the 24" you have, you can raise it 9" if you like, or go with a pump, raising will cost less.

To connect pvc to existing cast pipe, is there a plug on the end of the clean out?

Ron The Plumber is offline   Reply With Quote
Old 09-09-2006, 04:49 PM   #3
Newbie
 
Join Date: Aug 2006
Posts: 5
Rewards Points: 10
Default

Drain connection for basement utility sink


Ron, thanks for the reply. Would raising the sink 9" make it awkward to use? What about the stability of the sink sittiing on 9" of blocks?

Yes, the clean out has a metal plug. It looks like it hasn't been opened in a while. Last month, I had a clog in my main sewer line, and the drain cleaning company wasn't able to unscrew the same kind of plug further down my line. They had to break it up with a chisel. I wonder if I will need to do something similar to remove the plug.

Anyways, if I have to use a pump, then I will probably tie the drain to an existing PVC pipe that is already coming out of the main stack about 6' off the ground instead of trying to remove the plug.
chickenboo is offline   Reply With Quote
Old 09-10-2006, 08:31 AM   #4
Journeyman Plumber
 
Ron The Plumber's Avatar
 
Join Date: Jun 2006
Location: Eugene, Oregon
Posts: 1,994
Rewards Points: 1,000
Default

Drain connection for basement utility sink


You could get a wall mount style laundry sink, height might be bothersome, if you you can get the pug out, use a threaded male adaptor in it for the connection.

If you use a pump then you can tie in where you want to.
Ron The Plumber is offline   Reply With Quote
Old 09-11-2006, 02:26 PM   #5
Newbie
 
Join Date: Aug 2006
Posts: 5
Rewards Points: 10
Default

Drain connection for basement utility sink


Thanks again Ron. What kind of adapter would I need? Does the adapter have plastic male threads with a standard connector on the other end to glue in pvc? Is it ok to connect plastic and metal with threads for DWV?
chickenboo is offline   Reply With Quote
Old 09-11-2006, 02:30 PM   #6
Journeyman Plumber
 
Ron The Plumber's Avatar
 
Join Date: Jun 2006
Location: Eugene, Oregon
Posts: 1,994
Rewards Points: 1,000
Default

Drain connection for basement utility sink


Yes use a male adaptor, male thread on one side hub side to glue pipe into. Use pipe dope to seal threads.

Ron The Plumber is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Did I ruin toilet/vent after installing sink??? nibeck Plumbing 4 09-06-2012 07:07 AM
vessel sink drain and faucet Katmac Plumbing 17 10-11-2010 08:12 PM
pedestal sink drain leaking sully Plumbing 2 02-05-2007 08:01 AM
installing vessel sink drain?! (HELP!) tara Plumbing 2 11-10-2006 12:17 AM
Drain for an "Outdoor Kitchen" Sink Rich Plumbing 5 08-26-2006 06:48 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.