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1 1/2 or 2 inch. 2 inch is better because it give more venting for the drain.
The proper size minimum size is 2" and ideally there would be an air break which is not always practical with a 2" stand pipe.The "vent" is installed AFTER the trap to prevent air locks and 2" is used to allow the Volume to flow freely
Wiki User
∙ 13y ago
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∙ 9y agoIt depends on how many types of toilets there are.
If there are two toilets installed then the standard toilet sewer pipe size for that is 3". If there are three or more toilets then a 4" sewer pipe is needed for an adequate drainage.
Wiki User
∙ 14y ago3" -4" UNLESS your using a sewerage ejector
Wiki User
∙ 14y agoIf it is storm drainage it is measured by Sq ft and pitch and if it is waste it is sized by pitch and fixture units .... venting is sized by fixture units and developed lengh
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∙ 9y agoit should be 2.5m.
All the best with the installation.
Wiki User
∙ 11y ago11/2
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∙ 14y ago2"
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What size pipe for shower drain?
2"
What size of drain do you need if you tie 2 bathroom sinks into 1 drain line?
a 3 inch pipe
What size hole is needed for a toilet flange?
At least 3 in. drain pipe
Is there a required minimum pipe size for a shower-tub drain?
1-1/2 inch drain for above grade and 2 inch drain for below grade. Most UPC-based codes (IAPMO) require 2 inch above and below grade.
How do you find a drain pipe?
Radio Shack "drain pipe tracer".
How large of a hole to cut out of floor for toilet drain for a second floor addition?
depends on the size of drain piping. Most toilet either have a 3" or 4" drain. The size hole needed would be larger than the outside diameter of the piping. 3" pipe=4" hole / 4" pipe=5" hole
You are working with a 3 inch PVC drain pipe and a 3 inch PVC flange and there is too much play as you insert the flange into the drain pipe?
Probably the wrong size flange. Is the flange a toilet collar? If so the pipe is probably 4 inch.
What goes up a drain pipe down but not down a drain pipe?
Foul Air
Can a sewage drain pipe be to large?
Yes, a sewage drain pipe can be too large.
Can you joint a PVC trap to a metal drain pipe?
Yes, if they are the proper size to mate, or match up. yes
What size PVC pipe do you use for the main drain line out of your house to the street?
Most of the time it is 4 inch.
What side of the toilet drain should the vent be on up stream or down?
downstream of a closet bend within 8 ft for three inch pipe and 10 feet for 4 in pipe at least half the size of the drain... unless it is stack vented then it would be full size of the stack right
