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Illinois Administrative Code (Last Updated: March 27, 2024) |
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TITLE77. PUBLIC HEALTH |
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PART890. ILLINOIS PLUMBING CODE |
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SUBPARTM. INSPECTIONS, TESTS, MAINTENANCE AND ADMINISTRATION |
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Section890.APPENDIX A. Plumbing Materials, Equipment, Use Restrictions and Applicable Standards |
§890.TABLE P. Demand at Individual Water Outlets
Latest version.
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Demand at Individual Water Outlets
Type of Outlet
Demand (g.p.m.)
Ordinary Lavatory Faucet
2.0
Self Closing Lavatory Faucet
2.5
Sink Faucet, ⅜" or ½"
4.5
Sink Faucet, ¾"
6.0
Bath Faucet, ½"
5.0
Shower Head, ½"
5.0
Laundry Faucet, ½"
5.0
Ballcock in Water Closet Flush Tank
3.0
1" Flush Valve (25 psi flow pressure)
35.0
1" Flush Valve (15 psi flow pressure)
27.0
¾" Flush Valve (15 psi flow pressure)
15.0
Drinking Fountain Jet
0.75
Dishwashing Machine (domestic)
4.0
Laundry Machine (8 to 16 pounds)
4.0
Aspirator (operating room or laboratory)
2.5
(Source: Amended at 22 Ill. Reg. 21540, effective December 1, 1998)