View Full Version : Sanitary Tee on its back...
I installed a sanitary tee on its back.... why? because the pieces i was cutting out and replacing (had to move the drain) were installed the same way..
it is a shower drain., 2"., you see a 3" drain further back for the toilet.
water drains from right to left., the vertical part of the san tee is for venting...
someone suggested that using the san tee on its back is illegal... but there is no way i can fit a wye in there... thoughts?
Terry
01-26-2009, 10:44 PM
There is always a way to do it right.
Sometimes you just look at it until you figure out the way.
If that is a vent it is flat vented and that is a no no...
If it is not a vent then the T should not be there...
the top is for vent., so yes it is flat vented for about 2' and then goes into a vertical vent...
any suggestions as to what can be done?
the main vent that goes up into the attic is on the right side of the shower drain... the drains exit downwards on the left side of the room...
prior to the bathremodel... which included breaking the wall between the closet and bath... the shower(tub) and toilet drain were to the right side of the vertical vents... there isnt enough room to move things around and i cant cut the floor joists :(
Rework the shower drain line so that it connects at the point where your vent transitions from horizontal to vertical. In other words, move the connection point the 2 ft. to the right that you mention. There, you'll be able to use a Tee, and be rid of the flat vent. I had to do basically the same thing cleaning up the inspected work of a plumber used by the previous owner of my house.
Maybe more pics are needed....
Can't move it to right ;)
I'll post later today
will have to take better pics tomorrow., ill be back :)
master plumber mark
01-28-2009, 05:37 AM
it looks like it is a lttle late to change anything...
without cutting out the whole thing and starting over.
Technically it is not right but will probably work like
its predecessor did.....
It would have been easy before you put everything together so tightly. The Y on its back with a street 1/8 bend turned horizontal would have been easier to use. But there may be a more pressing problem if that fitting just visible to the right of the tee is also rising before it gets to the trap. IF so then it is creating a 3/4 "S" trap and that is more illegal, and a bigger problem, than the san tee on its back.
iminaquagmire
01-28-2009, 09:23 PM
HJ is right. I didn't even notice that. Move your wye and 1/8 bend on the 3" down closer to the shower drain and rotate it up. Put your vent tee in and run your P trap directly to it. Then you just have to figure out the vent connection to the old vent line.
HJ is right. I didn't even notice that. Move your wye and 1/8 bend on the 3" down closer to the shower drain and rotate it up. Put your vent tee in and run your P trap directly to it. Then you just have to figure out the vent connection to the old vent line.
well., maybe this is a better question., itll be a bit hard to explain
does a vent have to be after the p-trap?
can i have (from right to left)., vent., 90 deg elbow., tee or wye., conncted to p-trap., then continues ....
here is a sketch of whats been done., there are approx 5"-9" between the borrom of the floor joist and the ceiling (below)
http://www.terrylove.com/forums/attachment.php?attachmentid=6090&stc=1&d=1231046389
HJ is right. I didn't even notice that. Move your wye and 1/8 bend on the 3" down closer to the shower drain and rotate it up. Put your vent tee in and run your P trap directly to it. Then you just have to figure out the vent connection to the old vent line.
your are all over the place :) you posted on the JB forum as well :)
It would have been easy before you put everything together so tightly. The Y on its back with a street 1/8 bend turned horizontal would have been easier to use. But there may be a more pressing problem if that fitting just visible to the right of the tee is also rising before it gets to the trap. IF so then it is creating a 3/4 "S" trap and that is more illegal, and a bigger problem, than the san tee on its back.
i see what you are saying about an s trap being created., but... it isnt as S... for ex., in the attached image., it goes straight down..
in mine., the P trap is connected to a 1/8 bend down., then a straight., then a 1/8 to correct the prior down and tilt it towards the waste... which then connects to the tee....
do i need to post better pics?
That is why I called it a 3/4 "S" trap because it goes at a 45 instead of down, but it is still an "S" trap, and it is still illegal and a bad idea even if it were not. Your top drawing is the correct and best way, BUT the trap has to go directly to the vent without turning down. Once it passes the vent you can turn it anyway you want to.
thanks HJ
hmm., in order to remove both the 3/4 s trap and the flat vent., what i could do., is., have the ptrap go from left to right (away from the waste wye), towards the vent, have it connect to the vent with a wye, then use a 180 deg elbow? ( is its called a U?.,) .. so that i can go back towards the wye that you see in the picture.,.,
would a p-trap., into a straight + wye (vent) + straight + 180 deg elbow (turning around AND down) + straight., into wye in pic ? work?!>
GabeS
01-29-2009, 10:08 AM
I'm not a plumbing pro, but you'd probably want to avoid using 180 degree turns. You're making it too difficult for the waste to flow properly.
It may almost seem that reframing may need to be done, or notching and then reinforcing.
I'm not a plumbing pro, but you'd probably want to avoid using 180 degree turns. You're making it too difficult for the waste to flow properly.
It may almost seem that reframing may need to be done, or notching and then reinforcing.
How about a 90 1 ft straight and then another 90... Giving the 180 a lil stretch
i have been wondering why i created the 3/4 s trap in the first place.....
i was up there and noticed the old 1.5" p-trap that had been removed... turns out., that one was als a 3/4 s-trap., which is probably what i was replicating.,
Your idea of a "U" bend is bad, but we would have to be there so we could see the entire situation to determine the best option. Your pictures do not give us enough information about the area to make a decision.
hj., more pictures., (will make two posts) and one picture with marking on what i could possibly do., to get rid of the s-trap and the flat vent without using a U bend., will need to post
i really appreciate all the help., i hope to work on this early tomorrow morning so i can get a step closer to my kohler shower :)
Also,... What issues will I have if I leave as is ? Draining issues? Smell?
Terry
01-31-2009, 02:00 PM
An "S" trap can siphon the trap.
SMELL
thank you for ur response.,
i have cut off the sani tee on its back., will soon start to connect things back.,
An "S" trap can siphon the trap.
SMELL
btw.. if i vent at the right level BEFORE a drop... this will avoid the siphon?
meaning., will "p-trap connected toa T-wye, and then a 90 long el taking flow downwards... " avoid the trap being siphoned?
hopefully the problem is now corrected
iminaquagmire
02-01-2009, 08:59 AM
No. Turn the trap around the other way. Then connect the outlet off the trap to a wye and 1/8 bend on their side for the vent facing the opposite direction. Run that horizontal with pitch, then turn it vertical and tie into your existing vent at the appropriate location. Connect the outlet side of the wye (farthest from the trap) to your wye and bend on the 3" line.
Terry
02-01-2009, 10:21 AM
All things considering, that looks much better than before.
It may be time to wrap it up.
I like to run off the wye fitting toward the shower and then roll a wye off of the 2" for the vent, a bit higher than the flow level,
but seeing what you are trying to miss there, that should work too.
I like the combo for the vent. Much better than the santee before,
And it is the right direction for your setup.
No. Turn the trap around the other way. Then connect the outlet off the trap to a wye and 1/8 bend on their side for the vent facing the opposite direction. Run that horizontal with pitch, then turn it vertical and tie into your existing vent at the appropriate location. Connect the outlet side of the wye (farthest from the trap) to your wye and bend on the 3" line.
not enough room, and i am avoiding a cut in the floor joist,. i am sistering those joists for a travertine install
All things considering, that looks much better than before.
It may be time to wrap it up.
I like to run off the wye fitting toward the shower and then roll a wye off of the 2" for the vent, a bit higher than the flow level,
but seeing what you are trying to miss there, that should work too.
I like the combo for the vent. Much better than the santee before,
And it is the right direction for your setup.
thank you., i was trying to avoid cuts in the floor joists :)
everything is all glued except the right most contraption, i just need to glue in the 90 deg elbows that go back towards the joist... was waiting for the rest to dry. the next part of this project may not be possible...
need to put a tub but the vented drain is on the other side of the room (8ish ft)
Redwood
02-01-2009, 01:17 PM
Much much better than before....
It's a wrap!
Much much better than before....
It's a wrap!
thank you., i will be posting another thread., :) this time ill get the answers BEFORE i make a mess myself
any help on the following will be greatly appreciated..
here is the tub drain-vent question (http://www.terrylove.com/forums/showthread.php?p=182295#post182295)