NP – Not Permitted
7.6.3.2. Hydraulic Load (1) Except as provided in Sentence (3), the hydraulic load of a fixture or device that is listed in Table 7.6.3.2.A. shall be the number of fixture units given in the Table. (2) Except as provided in Sentences (1) and (3), the hydraulic load of a
fixture that is not listed in Table 7.6.3.2.A. is the number of fixture units listed in Table 7.6.3.2.D. (3) Where fixtures are supplied with both hot and cold water, the hydraulic loads for maximum separate demands shall be 75% of the hydraulic load of the fixture units
given in Tables 7.6.3.2.A. and 7.6.3.2.D. when using a detailed engineering design method. (4) The hydraulic load of urinals and water closets with direct flush valves shall be the number of fixture units listed in Tables 7.6.3.2.B. and 7.6.3.2.C. Table 7.6.3.2.A.   Sizing of Water Distribution Systems(1)(2) Forming Part of Sentences 7.6.3.2.(1) to (3) and 7.6.3.4.(2), (3) and (5) Item   Column 1   Column 2   Column 3   Column 4   Column 5   Column 6   Column 7   Column 8 

      Fixture or Device   Minimum Size of Supply Pipe, in.   Private Use Hydraulic Load, fixture units   Public Use Hydraulic Load, fixture units 

              Cold   Hot   Total   Cold   Hot   Total 

  1.   Bathroom group with 6 LPF flush tank(3)   N/A   2.7   1.5   3.6   -   -   - 

  2.   Bathroom group with greater than 6 LPF flush tank(3)   N/A   4   3   6   -   -   - 

  3.   Bathroom group with more than 3 fixtures   -   -   -   (4)   -   -   - 

  4.   Bathtub with or without shower head   1/2   1   1   1.4   3   3   4 

  5.   Bathtub with ¾ in. spout   3/4   7.5   7.5   10   7.5   7.5   10 

  6.   Bedpan washer   1   -   -   -   7.5   7.5   10 

  7.   Bidet   3/8   1.5   1.5   2   -   -   - 

  8.   Clothes washer, 3.5 kg   1/2   1   1   1.4   2.25   2.25   3 

  9.   Clothes washer, 6.8 kg   1/2   -   -   -   3   3   4 

  10.   Clothes washer, commercial(5)   -   -   -   -   -   -   - 

  11.   Dental lavatory   3/8   -   -   -   1.5   1.5   2 

  12.   Dental unit, cuspidor   3/8   -   -   -   1   -   1 

  13.   Dishwasher, commercial(5)   -   -   -   -   -   -   - 

  14.   Dishwasher, domestic   3/8   -   1.4   1.4   -   -   - 

  15.   Drinking fountain or water cooler   3/8   -   -   -   0.25   -   0.25 

  16.   Hose bibb   1/2   2.5   -   2.5   2.5   -   2.5 

  17.   Hose bibb   3/4   3   -   3   6   -   6 

  18.   Hose bibb, combination hot and cold   1/2   1.9   1.9   2.5   1.9   1.9   2.5 

  19.   Lavatory, 8.3 L/min or less   3/8   0.5   0.5   0.7   1.5   1.5   2 

  20.   Lavatory, greater than 8.3 L/min   3/8   0.75   0.75   1   1.5   1.5   2 

  21.   Shower head, 9.5 L/min or less per head   1/2   1   1   1.4   3   3   4 

  22.   Shower head, greater than 9.5 L/min per head   1/2   1.5   1.5   2   3   3   4 

  23.   Shower, spray, multi-head, fixture unit per head   (5)   1   1   1.4   3   3   4 

  24.   Sink, bar   3/8   0.75   0.75   1   1.5   1.5   2 

  25.   Sink, clinic service faucet   1/2   -   -   -   2.25   2.25   3 

  26.   Sink, clinic service with direct flush valve   1   -   -   -   6   -   6 

  27.   Sink, kitchen, commercial, per faucet   1/2   -   -   -   3   3   4 

  28.   Sink, kitchen, domestic, 8.3 L/min or less   3/8   1   1   1.4   1   1   1.4 

  29.   Sink, kitchen, domestic, greater than 8.3 L/min   3/8   1.5   1.5   2   1.5   1.5   2 

  30.   Sink, laboratory   3/8   -   -   -   1.5   1.5   2 

  31.   Sink, laundry (1 or 2 compartments)   3/8   1   1   1.4   1   1   1.4 

  32.   Sink, service or mop basin   1/2   -   -   -   2.25   2.25   3 

  33.   Sink, washup, per faucet   1/2   -   -   -   1.5   1.5   2 

  34.   Urinal, with direct flush valve   3/4   (6)   -   (6)   (6)   -   (6) 

  35.   Urinal, with flush tank   3/8   3   -   3   3   -   3 

  36.   Urinal, with self-closing metering valve   1/2   2   -   2   4   -   4 

  37.   Water closet, 6 LPF or less with flush tank   3/8   2.2   -   2.2   2.2   -   2.2 

  38.   Water closet, greater than 6 LPF with flush tank   3/8   3   -   3   5   -   5 

  39.   Water closet, with direct flush valve   1   (6)   -   (6)   (6)   -   (6)