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Plumbing and hidden works · Waste and drainage

Waste and drainage
Where used water goes.

Every fitting drains into a pipe that runs to the soil stack and the drains. Where gravity can't do the job, a pump can.

Main drain
Soil stack
From each fitting
Waste pipes
Where gravity can't
Pumped waste
Moving things
New pipework

The basics

Fittings can go wherever they work best; moving them means new pipework, which adds work and cost.

In this section 3 pages

Soil stack

The main vertical drain pipe the toilet connects to.

Waste pipes

Smaller pipes from the bath, shower and basin, which need a steady fall.

Pumped waste

Pumps that lift waste where gravity can't, such as in basements.

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