Trap too low to meet waste line...

[Bosun]

My sink is deep. My strainers are too deep. (Brasstech PVC, nearly 4") I put in a T to join the other sink and the trap sits about 1"--maybe 3/4" too low. Can I buy a "deeper" trap? Do I need new strainers? Wife loves the post type--must be SS finish...

 

[Clayton]

Clayton

Couple things you could do to gain that 1" in height but of course the simplest would be to just use a special trap. A "low inlet trap" would probly let you make the connection. The inlet on these are extremely shallow so make sure you have a square cut on the bottom of the tee and you seat it completely into the trap.

I would rather recommend you throw the Tee away and just continue the drain out from the wall with a wye and individually trap each sink compartment. That would save you the space of the tee.

Another way is to cut open the wall around the drain and lower the drain in the wall. Fairly easy project if the drain is coming straight up to a san-tee and vent, but could be hard and mean alot of wall to tear open if it is a horizontal waste arm.

If all else fails, i'm sure she would settle for some shallow S.S. duo strainers than to be with out a kitchen sink...

good luck

 

[Sponsor]

 

[Bosun]

Vent issues on double trap kitchen?

The window above means I have a horizontal run--so the waste height will stay.

If I do a "Y" right from the wall stub and trap both sinks, do I need to worry about vent issues? I've heard that this can be a problem--siphoning the "unused" trap, etc...

 

[Clayton]

Clayton

Yes this is true. You need to see if the horizontal drain is 2". Plumbers in my area almost always run 2" for kitchen drains. If it is 2" then you can continue it out of the wall and connect each trapped compartment into a reducing wye.
This is a code issue that differs from place to place so check with your plumbing inspector if this is an approved method. Some inspectors will require the vent connection between the two waste arms or fixture drains. Others will allow the above method as a combination drain vent as long as you have a vent connection at or before the point where this comb. drain vent offsets or turns down.

 

[Bosun]

1.5" horizontal waste

The horizontal waste is only 1.5"--what implication does that have on my venting issues if I connect two traps via the "Y"? How big an issue will this be for daily life?

 

[hj]

y

None at all as long as the inspector, if there is one, allows it to be installed. Sometimes there is a big gap between what is permitted and what will work.