DWV fittings

[bfarroo]

I picked up the fittings for my floor drain plumbing and noticed that the sanitary T's I picked up were DWV fittings and not a normal schedule 40 fitting. What are the differences in these fittings? I researched them and they are drain waste vent fittings but haven't found anything that says if they are comparable fittings to schedule 40 fitting or if they can be interchanged.

 

[flat350]

Are you talking DWV copper fittings or PVC?

 

[Ron Lombardo]

DWV is drain waste and vent ... a sanitary tee is for a vent and wyes and 1/8 bends (45's) are for drainage ... the ty can be used in line of the waste line ... for a vent ...

 

[bfarroo]

I was under the impression that a sanitary T was used to aid in directing flow in the correct direction in the drain line. My floor drain will be a 4 inch PVC pipe that runs 84 feet across the front of my building 8 feet in from the doors with 4 drains spaced 24 feet apart. One end will have a 90 degree fitting and the other 3 will require T's..

 

[Ron Lombardo]

Sanitary tee is considered a short pattern fitting for venting .... are you putting traps on those floor drains .... I would use wyes to each with traps and at the beginning and end use a 2" vent ( circuit vent ) and at the furthest end use a 90 with a clean out deck plate ... also consider some Codes have changed where any floor drain below slab has to be 4" ... so it can be snaked out ...

 

[bfarroo]

I wasn't planning on putting in traps as the building won't be heated for a few years and I'm worried about any water in the trap freezing and damaging the drain pipe. I've read the pros and cons on having traps in the floor drains and have decided against them. The drains will not be connected to a sewer system and will exit to daylight. The drain pipe will be 4 inch. I'm going to pick up some different fittings and get this finished up today hopefully and get started on the bathroom plumbing.

 

[Ron Lombardo]

...couple of key points ... the traps prevent cold air, rodents, insects from coming up into the garage thru the floor drains ... maybe consider when you go to day light adding a back water valve.

 

[G_P]

...couple of key points ... the traps prevent cold air, rodents, insects from coming up into the garage thru the floor drains ... maybe consider when you go to day light adding a back water valve.

If the wind is blowing against the daylight end of that pipe and you have no traps expect to have ice cold air blasting out of your drains in the winter.
This might work in your situation if you chose not to use a standard trap.

http://www.thesureseal.com/

 

[bfarroo]

I'll keep that in mind

 

[rluckie]

If you are truly worried about water freezing just add a little bit of anti freeze to each trap.

 

[kbs2244]

You can just put a screen over the exposed end of the drain to keep out things.
Any plumbing department will have them.

 

[Ron Lombardo]

the back water valve will take care of the wind ...and if you burry the trap below the frost line it will not freeze ... forgot to ask where your located ... i would be more worried that if a car drips antifreeze or oil and then it get carried thru the pipe to day light and then it spills on the ground ? also if there is any type of inspections ... your going to need traps, vents and some sort of oil separator before you spill it to daylight.

 

[ishiboo]

the back water valve will take care of the wind ...and if you burry the trap below the frost line it will not freeze ... forgot to ask where your located ... i would be more worried that if a car drips antifreeze or oil and then it get carried thru the pipe to day light and then it spills on the ground ? also if there is any type of inspections ... your going to need traps, vents and some sort of oil separator before you spill it to daylight.

His location is in his signature. Frost line is 48", he would have to have a trap at 48", then pump it back up to get it out to daylight... quite silly. A flapper should be fine.

 

[CNGsaves]

Sure hope that OP is out in boonies with no codes at all.

Best solution would be routing floor drain to below ground dry well.

 

[bigpokie]

Those sure seals work great. We sell them alot. Maybe just add a trap at the end of the line ??