Can you plumb two toilets on the same line?

Most houses have more than one toilet, and if they are on the same side of the house, their waste lines can usually tie into the same stack. If they are on opposite sides, however, each may need its own stack.

How do I plumb my second bathroom?





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Quote from Youtube video: Position also the water lines are roughed in approximately 21 inches above the finished floor they're spaced around eight inches apart.

Can two toilets share the same vent?

The waste lines can usually be tied into the same stack if the house has more than one toilet. They may need their own stack if they are on opposite sides. Two vent openings on the roof are needed since the stacks must be vented.

Can a toilet and sink share the same drain?

Yes, the sink can tie into the same drain. Be sure to use a trap! Personally, I would make the sink connection to the drain as close as possible to the vertical.

How many toilets can go on a 3 line?

There is one answer. The International Plumbing Code requires 5 Drainage Fixture Units in a bathroom group. It’s good for 20 DFU’s or 4 bathroom groups.

How many toilets can be on a 3 drain?





As a horizontal branch 3″ is good for 20 DFU’s or 4 bathroom groups.

Can I add another bathroom to my house?

Can you add a bathroom anywhere in your house? The short answer is yes, you can install a bathroom almost anywhere that you can afford it. However, this will largely depend on your plumbing and electrical setup and what style of bathroom you want, which goes into another common question.

How many plumbing vents can be tied together?

You can usually tie up to eight fixtures to a single stack, but local codes differ, so it’s a good idea to check.

How many toilets can 110mm pipe take?

Requires two vertical stacks with horizontal connections from both sides, or one stack if toilets arranged over two floors, 32 total.

How far can a toilet be from soil stack?



Six metres is the maximum run according to Building Regualtions, but as you have realised yourself, a good fall on the branch pipe is essential. 2.5º, or 44mm fall for every metre run, is the usual standard. IIRC it is permissible (but inadvisable) to go as low as 18mm per metre, the maximum is 90mm per metre.

Can toilet waste pipe run under floor?

They can be mounted on the floor, but usually pipes run below the floor in-between the floor joists. The pipe diameter is 110mm. Running this pipe from one end of the house to the other simply is not practical.

How far can you run a 2 waste pipe?

When builders look only at the table without reading the text, they find that a 2-inch-diameter drain can run a maximum distance of 8 feet to the vent.

How far can you run a drain without a vent?



If you have 1- 1/4-inch pipe, the horizontal distance of the vent ought to not be more than 30 inches. For a 1- 1/2-inc pipe the vent must be 42 inches away at the most while a 2-inch pipeline must have an optimum distance of 5 feet.

How long can a toilet drain pipe be?

If you’re in the IPC, there is no limitation in length for the toilet’s trap arm. That’s right, no limitation! That means your fixture drain can have an unlimited distance (909.1). Keep in mind your toilet still needs a vent, but your trap arm can be as long as necessary.

How far below drain should P trap be?

What is the minimum and maximum distance a P-trap can be below a sink? There is no minimum distance specified by the building code, but the maximum is 24” per International Residential Code (IRC) and Residential Edition of Florida Building Code (FBC 1002.1), measured from fixture outlet to trap weir.

Can your P-trap be lower than drain pipe?

You attach the p-trap directly to the drainage and manuever the p-traps exits into you existing drain. It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally. They both work and have seen it many times.

Does P-trap have to be directly under shower drain?



The maximum distance between the shower drain and the P-trap is 5 feet. However, the P-trap should be as close to the shower drain inlet as possible. You should even have the P-trap directly under the shower drain for the best results.