Written by Tim denHartog• July 1, 2025• 4:58 pm•

UPC Code Quiz | Third Quarter 2025

Except in single-family residences, drainage stacks 3 stories or more in height serving ______ are considered suds-producing fixtures.

Drainage connections shall not be made into a drainage piping system within _______ of any vertical to horizontal change of direction of a stack containing suds-producing fixtures.

Vertical drainage lines connecting with horizontal drainage lines shall enter through a ___________________.

The maximum fixture units allowed on a 4-inch horizontal drain with a 1/8 inch per foot slope is _______________.

Last modified: July 1, 2025

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