Single Family Plumbing Worksheet - continued
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ALTERNATE FIXTURE UNIT CALCULATION
This approved alternate method of calculating fixture units typically results in a lower fixture count than when using
Table 610.3 on Page 1. This table takes into consideration "groups" of fixtures, such as Kitchen Units, Bathroom Units,
and Laundry Units, instead of looking at each individual fixture.
2015 UPC Table C 303.1(1) - Number of Plumbing Fixtures (including rough-ins)
Accessory
Dwelling Unit
Main Residence
Fixture Count
x Multiplier
Fixture Units
Bathroom Groups (select one that best reflects the total combination of full and half-baths)
One Bathroom Group x 5.0 =
One and a Half Bathroom Groups x 6.0 =
Two Bathroom Groups x 7.0 =
Two and a Half Bathroom Groups x 8.0 =
Three Bathroom Groups x 9.0 =
Additional Bathroom Groups (for groups in addition to the above)
Each additional Half-Bath or Powder Room x 0.5 =
Each additional Bathroom Group x 1.0 =
Laundry Groups
Each Laundry Room
(includes one Sink and one Clothes Washer)
x 5.0 =
Kitchen Groups
Each Kitchen Group
(includes one Sink and one Dishwasher)
x 2.0 =
Additional Units (fixtures and multipliers from Table 610.3 )
Each additional Shower Head x 2.0 =
Each Clothes Washer (without a laundry sink) x 4.0 =
Lawn Sprinklers (each head)* x 1.0 =
Bar Sink x 1.0 =
Hose Bibb, first x 2.5 =
Hose Bibb, additional x 1.0 =
Total Fixture Units:
Notes:
1. A bathroom group, for the purpose of this table, consists of one water closet, up to two sinks, and either one bathtub
or one shower.
2. A half-bath or powder room, for the purpose of this table, consists of one water closet and one sink.
3. See 2015 UPC Appendix C for scope and application of alternate plumbing systems.
Lawn sprinklers may be excluded from the fixture count and fixture unit count if the sprinklers are on a timer that
operates only during periods of low water demand and the statement below is signed and dated.
I,
(Printed Name of Owner or Owner's Agent)
, declare that the lawn sprinklers will be on a timer
that will operate the sprinklers during periods of low demand only.
Signature:
Date:
Lawn Sprinkler Exception
