Water Pipe

Min. water service win. . . . . . . . . . . . . . . . . . . . . . . .[2903.7] {610.8}
Min. static pressure 40psi {15psi} . . . . . . . . . . . . . . . . [2903.3] {608.1}
Max. unregulated pressure 80psi . . . . . . . . . . . . . . .[2903.3.1] {608.2}
Regulated pressure computed at 80% of setting . . . . . . .[2903.7] {608.2}
Expansion tank req'd if regulator not internal bypass type [2903.4] {608.3}
Test under working pressure or 50psi air 15 minutes . . .[2503.6] {609.4}
Main valve must be full-bore type . . . . . . .F-p10-F-p12 [2903.9.1] {605.2}
Like materials throughout system except valves . . . . . . . . . .[n/a] {604.1}
Dielectric fittings or brass between galv. and copper . .[2904.14.1] {316.2}
Rigidly support faucet takeoff fittings . . . . . . . . . . . . . . . .[local] {609.1}
Water hammer arrestors req'd if quick-close valves . . . .[2903.5] {609.10}
Backflow protection from fire sprinkler piping . . . . . . .[2902.4.4] {603.4.18}
Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see T-p3

Kitchen

Dishwasher waste ahead of garb. disposer discharge . . . . . .[n/a] {405.4}
Dishwasher drain req's air gap [or integral backflow] . . . .[2717.1] {807.4}
Island vent--use only when structurally req'd . . . . . . . . . . .[n/a] {909}

Bathroom

Shower
Shower valve, head/riser secure . . . . . . . . . . . . . . . . .[2708.2] {412.12}
Min. area 900sq.in. {1024sq.in.} to 70in. & 30in. circle [2708.1] {412.7}
Min. rough pan 32in. x 32.in. {34in. x 34in.} . . . . . . . .[2708.1] {412.7}
Dam =>2in. & <=9in. . . . . . . . . . . . . . . . . . . . . . . . . . . .[2709.1] {412.6}
Pan liner plastic or 3 layers hot mop type 15 felt . . . .[2709.2.1] {412.8}
Liner min. 3in. above dam . . . . . . . . . . . . . . . . . . . . .[2709.2] {412.8}
Slope underlayment 4in./ft.-2in./ft. . . . . . . . . . . . . .[2709.1] {412.6}
No fasteners <1in. above dam . . . . . . . . . . . . . . . . . .[2709. 3] {412.8}
Weep holes at drain to remain clear . . . . . . . . . . . . . .[2709.4] {412.8}
Special attention to corner installation . . . . . . . . . . .[2709.2.1] {412.8}
Door shall open outward {min. 22in. wide} . . . . . . . . . .[2708.1] {412.6}
Listed anti-scald/pressure balance valve req'd 120° max. [2708.3] {420.0}

Toilet & Bidet
30in. wide clearance, 21in. {24in.} at front . . . . . . . . . .[2705.1] {408.6}
Flange secure & corrosion-resistant fasteners . . . . . . . .[2705.1] {408.3}
Closet ring to vent--max. length 12ft. {6ft.} . . . . .T-p2 [t3105.1] {t10-1}

Tub
Slip joints accessible, min. 12in. x 12in. door . . . . . . . .[2704.1] {405.2}
Over-rim bath faucet--min. air gap 2in. . . . . . . . . . .[t2902.2.1] {t6-3}

Exhaust Fan
Backdraft damper req'd, exhaust to exterior . . . . . . . . .[303.3X] {UMC504.1}
Min. 3ft. from opening or property line . . . . . . . . . . . . . . .[n/a] {UMC504.5}
Duct material approved for application . . . . . . . . . . . . [1601.2] {UMC504.1}
Accessible stop-&-waste hose bibbs in cold climate . . .[2903.10] {n/a}

Outdoors

Vacuum breakers on all hose faucets . . . . . . . . . . . .[2902.3.3] {603.4.7}
Backflow protection on irrigation systems . . . . . . . . .[2902.4.3] {T6-2}
Vacuum breaker 6in. above sprinkler heads . . . .F-p13 [2902.2.2] {T6-2}
No valves downstream of vacuum breaker . . . . . . . . .[2902.4.3] {T6-2}
Wrap outdoor PVC exposed to sun . . . . . . . . . . . . . . . . . .[local] {IS313.4}

Water-Sizing Worksheet