|
Posted by Don Young on May 19, 2007, 10:30 pm
> I'm replacing kitchen cabinets. The old drain ran horizontaly about 2'
> through the back of some of the cabinets and T's into a vent going up and
> drain down.
> The new Cabs have slide out accesories that wont allow me to cut into the
> cabinets.
> I plan on dropping the new drain straight down (after a trap of course)
> through the base of the sink cabinet and the floor. A couple of turns and
> I'll tie into the same vent / drain as before but now it will be in the
> basement.
>
> The drain will still be vented but the tie in will be 2 -3 feet below
> where it was.
>
> MY QUESTION >>>>>
>
> I may be missinterpreting the 1st sentence in the following response to an
> earlier post???
>
>> You cannot run a drain line down straight to the basement floor without a
>> vent running up through the roof. Most codes allow about 5 feet of
>> horizontal run from the sink trap before it has to split into the drain
>> going down and the vent going up. Which is why you have the current
>> arrangement. You would be better served by trying to work with the line
>> that you want to abandon as it probably has a vent running vertically
>> within the wall.
>>
>> If you don't want it to run through the cabinets, possibly you could
>> drill
>> through the studs and fit the pipe in there.
>
>
>
> The only problem I can see with what I want to do is that the connection
> to the vent / drain will be 2 - 3 feet lower than the hight of the trap
> under the sink..
>
> So the drain line will be vented but does the tie in to the drain / vent
> line have to be at the same hight as the trap???
> If so, could I just move the trap down to the basement and but it at the
> same level as the T into the drain / vent ???
>
> Hope this make sense??
>
> Thanks for any help.
>
>
> Steve
>
>
>
>
>
>
>
>
> Yes, where the horizontal line from the trap connects to the T in the
> wall,
> the vent goes up the wall and the water goes down.
> Is the relationship between the hight of the trap and the hight of the
> horizontal connection to the vent / drain line important?
> what I'm doing will drop the drain line down through the floor and connect
> to that same vented pipe.
> This will put the connection to the same vent / drain but will now be in
> the
> basement about 2 - 3 feet BELOW the trap thats under the sink.....
> Originally I was going to run horizontal through the wall and come out
> into
> the sink cabinet, but the stud I would have to cut through is doubled up
> 2x4's on the side of the kitchen window I'm also replacing. The original
> pipe T hugs these studs now. and the stud is already notched a bit to
> allow
> the current T to angle towards the old sink.
> I wasnt shure if I should cut out these 2x4's as nothing would be
> supporting
> the side of the window ????
>
> Again, I guess it all comes down to:
> Is the relationship between the hight of the trap and the hight of the
> horizontal connection to the vent / drain line important?
>
> What problems would it cause??
>
> There is nothing else connected to the vent pipe above this connection, It
> goes straight to the roof.
>
> Also, is the suggestion to use Mapp torch because of the brass or because
> of
> the 2" pipe?
> I am using propane now...
>
> I got brass because thats all they had!
> HDepot = no 2" connectors
> Local hardware = no 2" anything
> closest plumbing supply only had a brass T / Y ?????
>
>
> I redid the hot and cold lines last night and I'm going to tackle the
> drain
> as soon as I figure out which way to go
> Thanks for any help
>
> Steve
>
>
At least some plumbing codes strictly forbid the use of "S" traps and drains
thru the floor because of the high risk of siphoning the trap dry. Code
compliance is for safety and satisfactory performance. It is even more
important for non-professionals who may not recognize possible hazards.
Don Young
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap