DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Plumbing Forum > Bad, bad bathroom sink




Reply
 
Thread Tools Search this Thread Display Modes
Old 08-26-2011, 09:26 PM  
Becorlac
Junior Member
registry_dropdown_23636_60403
 
Join Date: Aug 2011
Location: Kansas City, Ks
Posts: 4
Default Bad, bad bathroom sink

Drainage in my bathroom sink has been slow to none for about 5 years. We replaced the sink and the pipes underneath, no help. The drain pipe ties into the main drain about 3 feet away and just inches above where the toilet joins. We have run a snake all the way into the main drain and found no clog. The vent has been checked and is clear. We had been using the sink with the plug in and bailing it out when it got full but anytime a sinkful was let out it initially appeared to drain then stopped. After plugging the sink again and bailing out the remaining water, pulling the plug again resulted in water raising back up. Recently we pulled the sink off again and the only evidence of water we found is in the P trap, further down was rust. What could cause the flow to stop at the trap?


Becorlac is offline  
 
Reply With Quote
Old 08-26-2011, 10:06 PM  
BridgeMan
Senior Member
 
BridgeMan's Avatar
registry_dropdown_23463_60407
 
Join Date: Aug 2011
Location: Cottage Grove, Oregon
Posts: 738
Liked 75 Times on 67 Posts

Default

Sounds like there might not be adequate pitch in your drain line to empty the sink. Or possibly even a bit of reverse pitch, meaning you're asking the water to run uphill. A quarter inch per foot (minimum) is a healthy pitch to promote healthy flow in a sink drain, assuming your vent line isn't plugged. If you have the access, put a small torpedo level on the pipes to see what pitch you have.


BridgeMan is offline  
 
Reply With Quote
Old 08-27-2011, 08:57 AM  
Redwood
Certified Lunatic
 
Redwood's Avatar
registry_dropdown_14118_60416
 
Join Date: Apr 2009
Location: Olde Tyme, Connecticut
Posts: 887
Default

If you remove the trap and run water in the sink does water pour out of the sink tailpiece?
Redwood is offline  
 
Reply With Quote
Old 08-28-2011, 03:47 AM  
Becorlac
Junior Member
registry_dropdown_23636_60434
 
Join Date: Aug 2011
Location: Kansas City, Ks
Posts: 4
Default

BridgeMan, when we tore out the wall the first thing I thought was it didn't look sloped at all. I checked the length of the drain pipe and it's 2' rather than the 3' I posted and at the same time I checked the pitch and it's 1/2" from the sink end to the drain end, 1/4" per foot, just as you said. When we replaced the sink, we only replaced the pipes underneath not behind the wall and I think those might be original to the house which was built in
1955. Because of that I pretty much dismissed the notion thinking the problem couldn't possibly have been going on that long.
Becorlac is offline  
 
Reply With Quote
Old 08-28-2011, 03:48 AM  
Becorlac
Junior Member
registry_dropdown_23636_60435
 
Join Date: Aug 2011
Location: Kansas City, Ks
Posts: 4
Default

Redwood, yes it does.
Becorlac is offline  
 
Reply With Quote
Old 08-28-2011, 08:11 AM  
Redwood
Certified Lunatic
 
Redwood's Avatar
registry_dropdown_14118_60439
 
Join Date: Apr 2009
Location: Olde Tyme, Connecticut
Posts: 887
Default

Okay then the drain inside the wall is clogged despite your snaking efforts.
I'd venture a guess that the clog is at the tee where the drain turns to drop down and your snake bounced off the clog and went up the vent....

These can be fun even for an experienced drain cleaner....
Redwood is offline  
 
Reply With Quote
Old 08-29-2011, 02:40 AM  
Becorlac
Junior Member
registry_dropdown_23636_60477
 
Join Date: Aug 2011
Location: Kansas City, Ks
Posts: 4
Default

Any idea why the multiple cleaners and decloggers and acid type products we've tried didn't help? And now......garden hose in the vent?
Becorlac is offline  
 
Reply With Quote
Old 08-29-2011, 07:43 AM  
Redwood
Certified Lunatic
 
Redwood's Avatar
registry_dropdown_14118_60484
 
Join Date: Apr 2009
Location: Olde Tyme, Connecticut
Posts: 887
Default

Because they don't work and you need a drain cleaner with a snake to clean the line.


Redwood 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


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Bathroom sink stopper SQ1 Plumbing Forum 2 02-17-2009 09:26 AM
My New Bathroom Sink Drain Is Too Short Lilly General Home Improvement Discussion 5 06-27-2008 02:44 PM
How To: Shine bathroom sink. OtbHunter General Home Improvement Discussion 5 02-26-2008 04:10 AM
replacing a bathroom sink chambones Plumbing Forum 1 01-29-2007 11:09 AM
bathroom sink conundrum magno Plumbing Forum 9 01-12-2007 07:45 AM

Newest Threads

LATEST SPONSOR DEALS