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Q: Can you use a 4 inch toilet on a 3 inch drain?
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What size drain is required for a toilet?

3 or 4 inch


Can you install a toilet where a shower used to be?

A shower drain is 1 1/2 or 2 inch and a toilet needs to be either 3 or 4 inch.


Can a toilet be installed where you currently have a sink?

the sink drain is prob.in the wall.you would have to get a wall mount commode,or install drain in floor and plug drain in wallAnswerYou also need a 3 or 4 inch drainpipe.Ans 3 - You can do this if you fit a new 3" drain to the main pipe and run it to a toilet flange where the sink is.


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 size vent is needed for a toilet 2in 3in etc?

Any vent is usually the size of the drain or waste pipe it is connected to. 3 or 4 inch on a toilet.


How do you move a toilet 3 inches with concrete sub-floor?

If the extisting drain is lead pipe it can be moved about an inch and the use a offset brass floor flange and lead wipe it in place that will give you the 3" you want


How do you move a toilet 3 inches with concrete sub floor?

If the extisting drain is lead pipe it can be moved about an inch and the use a offset brass floor flange and lead wipe it in place that will give you the 3" you want


Can I place a shower where a toilet currently is and visa versa and are waste sizes the same and if so can I connect new stack to existing in attic?

The toilet is 3 or 4 inch and the shower is 1 1/2 or 2 inch. You could reduce the toilet to 2 inch, but it would never flush correctly or be of much use. The current toilet drain has no trap in that section because one isn't needed. The toilet itself is the trap. If you are using existing waste lines, they should already be connected to the vent stack. If you are adding lines, connecting to the existing stack is fine as long as it is above the last drain.


Is the toilet drain pipe a big job to move and can you use a shower drain instead?

This can be a complicated job as the toilet drain ranges from 3" -4" and a variety of materials from Plastic to cast iron to galvanized. Then there is the venting to consider and NO a shower drain CANNOT be used for a toilet discharge as the shower drain is normally 2" diameter


Can a toilet drain be reduce to a tub drain?

Yes as long as the drain has a trap and is vented


What size snake in a 3inch drain cleanout?

The cable is 3/4 to 1 inch diameter with a head that expands with the rotation. For a 3 inch drain you use a powered auger that turns the cable.


Will the toilet install properly if the flange is higher than tile?

Depends on how much higher and how the toilet is made. They are not all the same. A PVC flange is supposed to be above the floor level and will clear. They are about 1/4 inch thick. You can probably get away with up to 3/8 of an inch, but any more than that and the toilet will rock on the drain and eventually leak.