Looped distribution system
Looped distribution system
(OP)
We are reviewing plans for a new theme park water distribution system. At this time it is to be tapped off of an 8 inch municipal main at one point and is a looped 8 inch on the property, there are about 10 hydrants on this system and it will also be the domestic water supply for the park.
The fire flow calcs are acceptable with one tap.
What is considered good standard practice for the number of taps off of the main line into an area. Their doesn't seem to be a standard in any codes that I have researched that give the number of taps off of a main line. I have seen different municipalities that have many different rules on this.
Although the system is looped within the property it is not looped off of the municipal main line.
Thanks, TWM
The fire flow calcs are acceptable with one tap.
What is considered good standard practice for the number of taps off of the main line into an area. Their doesn't seem to be a standard in any codes that I have researched that give the number of taps off of a main line. I have seen different municipalities that have many different rules on this.
Although the system is looped within the property it is not looped off of the municipal main line.
Thanks, TWM





RE: Looped distribution system
RE: Looped distribution system
RE: Looped distribution system
RE: Looped distribution system
It sounds like you have determined that the fire flows will be adequate based on this arrangement. You may want to determine what your expected consumption will be, as if it is low, you may run into low disinfection residuals and stagnant water on the site.
Many municipalities do not want to incorporate private looped systems as free flowing entities with two or more services unless they take ownership and manage the infrastructure (e.g. a subdivision). From a consumption standpoint, numerous services are more difficult to control, and from a health perspective, a back-flow preventer should be installed to prevent any backflow into the municpal system.
If, however, fire flows are not adequate, additional services may provide the required flows, with back-flow preventers on each service and a Pressure Reducing Valve which will open one service during large flows only.