| Date: | 12/07/2017 |
|---|---|
| Referenced Sources: | Policies, Regulations, and Statutes for Plumbers and Gas Fitters |
- This page, Minimum Drain Size With Multiple Shower Heads , is offered by
- Division of Occupational Licensure
- Board of State Examiners of Plumbers and Gas Fitters
Policy Statement
Policy Statement Minimum Drain Size With Multiple Shower Heads
Table of Contents
Minimum Drain Size With Multiple Shower Heads
BOARD INTERPRETATION
MINIMUM SIZE OF THE DRAIN FOR A RESIDENTIAL SHOWER HAVING MULTIPLE SHOWER HEADS
(enacted 11-27-2013)
1. Introduction
The Board of State Examiners of Plumbers and Gas Fitters (“Board”) has voted to interpret 248 CMR, 10.10 (7) (b) Shower Waste Outlet
2. Interpretation
To allow a maximum of five (5) shower heads to operate simultaneously utilizing one (1) 2” shower drain.
3. Rationale
While sizing the drain, a shower valve with one (1) head would be rated at two (2) fixture units, and each additional shower head added which could operate at the same time would be rated at one (1) fixture unit. This would allow a maximum of five (5) shower heads installed to operate simultaneously while utilizing a 2” drain.