Water service sizing 1

[Kman1138]

Hi,

I'm trying to size a water service for a 2500 man camp. The Canadian national plumbing code does not size anything over 690 FU. I have 15,000 FU plus a full comerical kitchen plus a wet sprinkler system. How do I start to calculate the water service for something this big?

Regards,
Kris.

 

[PEDARRIN2]

EPA guidance states

Parks - 5 gal/person for toilet only facilities; 10 gal/person for bathhouse, showers and toilets.

Ordinary Restauraunt food service is 50 gallon/seat

Sprinklers would depend on size and hazard (probably LH with sporadic OH1).

Hope that gets you started.

 

[ChrisConley]

Fixture units convert (using a Hunter's curve) to gpm. Size the service pipe using gpm and pressure drop (with a reasonable velocity in the main).

You get to pick the acceptable pressure drop, and then can use the final pressure for sizing within the space.

Backing up a bit, civil water service doesn't size exactly like a building or house would (in Fixture Units). Civil engineering textbooks would be a good place to start.

 

[trashcanman]

Provide a 6" fire water line. Take whatever you need from the fire water line and BE SURE to provide a reduced pressure backflow preventer in the potable water line to keep out the nasty stagnant fire water.