View Full Version : Extremely tight (6 inches) clearance between bottom of sink and cabinet floor
Tluttre
Oct 4, 2012, 05:19 PM
Bought a display vanity from a cabinet mfg. that had never been plumbed. The design has a deep sink installed within a 18" tall by 24" deep cabinet. There is only 6" between the bottom (hole) of the sink and the cabinet floor. I can't find a ptrap / tailpiece fitting what will fit within the 6" clearance shown in the attached pictures.
The area below the 18x24 cabinet is open and a ptrap hanging in that area would detract from "the look".
Any ideas?
Tluttre
Oct 4, 2012, 05:24 PM
Sorry, did not attach the picture.
massplumber2008
Oct 4, 2012, 05:41 PM
Hi Tluttre
Where is the waste pipe from the wall? At what height/relation is that to your cabinet... that will tell us how we can help you here... ;)
Mark
ma0641
Oct 4, 2012, 05:46 PM
With the sink that low, you will have trouble getting any drain. You may find that the wall piping is above the sink base and water will not flow from the sink. You could possibly use an S trap with a "T" and an AAV, similar to what they use in log homes where water drains through the floor. S traps are not code accepted but can be modified with an AAV.
Tluttre
Oct 4, 2012, 06:09 PM
Mark,
The wall waste pipe will need to be moved because the sink is about 2 feet to the left of the original sink location. So, I can plumb it at any height / relation to the new sink that works.
Thanks for your quick response.
massplumber2008
Oct 5, 2012, 02:22 PM
Actually, looking at this, if you get a pop-up assembly (you called it a tailpiece fitting) and you cut the tailpiece so it is about an inch long, a regular ptrap with an 1.5" PVC x 1.25" compression trap adapter (also called a desanco fitting) should work here. They also sell a STREET desanco fitting (cements directly into the trap)... adds another 1" to help, if needed.
I would dry fit everything... cut the tailpiece... and then take the measure of the setup so you can decide EXACTLY where to bring your drain pipe into the cabinet.
I'm pretty sure all this will work with standard fittings.
Let me know what you think, OK?
Mark
Milo Dolezal
Oct 5, 2012, 09:18 PM
It appears to be a floating ( wall mounted ) cabinet. Correct ? If so, you can also drill 1 1/2" hole and run pipe through it. Use nice, chrome, metal P-Trap. Milo
massplumber2008
Oct 6, 2012, 05:26 PM
Hey Milo..
Do they still allow a compression fitting AFTER the trap in California? Just curious is all! In Mass, you can't use the old-fashioned chrome traps with a compression fitting (trap adapter) after the trap (been that way for a long time). Do they still allow in Cali. Let me know, OK?
Mark
Tluttre
Oct 7, 2012, 02:04 PM
Mark,
Looks like that will be a good option. Thanks for the advice.
Tom
massplumber2008
Oct 9, 2012, 06:18 PM
:)