I have a project in Southern California where some large existing steel reinforced portland cement concrete tennis courts need to be replaced in kind. It would be nice to recycle the concrete as base material for use under the new tennis court concrete surface. Since the existing courts have...
Hi everybody, I could sure use some advice on this one. I need to provide a 6" fire service line to a building here in Southern California that is on private property. Normally this would not be an issue but the building fire riser is exposed along the wall of the basement floor outside of the...
Hi everybody, I could sure use some advice on this one. I need to provide a 6" fire service line to a building here in Southern California that is on private property. Normally this would not be an issue but the building fire riser is exposed along the wall of the basement floor outside of the...
Does anyone know if there is a federal, N.F.P.A., or California State regulation that newly constructed fire mains that serve sprinklered buildings or private on-site fire hydrants need to be disinfected (chlorinated) before put into service? Case in point, I have 10 projects in Southern...
Does anyone know if NFPA states that newly constructed fire mains that serve sprinklered buildings or private on-site fire hydrants need to be disinfected (chlorinated) before put into service? Case in point, I have 10 projects in Southern California that the contractor wants to know if he...
I have numerous school site projects in Southern California, that require new concrete flatwork. The specificatons, which I wrote, specify a mix design of compressive strength minimum 4000psi, W/C ratio 0.50 maximum, with 1 inch aggregate passing 95-100%. If it helps in this question, the...
I have numerous school site projects in Southern California, that require new concrete flatwork. The specificatons, which I wrote, specify a mix design of compressive strength minimum 4000psi, W/C ratio 0.50 maximum, with 1 inch aggregate passing 95-100%. If it helps in this question, the...
Help!!
I have a flow test from a local water district in Southern California that provides the following information:
HGL - 830
Residual Pressure - 90
Outlet Size (inches) - 4
Outlet Coefficient - 0.9
Pitot Pressure - 40
Observed Flow - GPM - 2717
My question is how do I convert the HGL of...
Hello all,
I'm a civil engineer in the Southern California region that needs an answer to what most will probably regard as an easy question. I design a lot of fire protection systems from the point of connection at existing watermains in public streets up to private on-site hydrants and the...
Need help. I have a 4" ductile iron pipe, class 53, for domestic water use coming from the downstream side of a backflow device. It needs to be connected to a 4" copper pipe, type K for on-site drinking water use. Specifically, what technique should be used to connect the two for...
Need help. I have a 4" ductile iron pipe, class 53, for domestic water use coming from the downstream side of a backflow device. It needs to be connected to a 4" copper pipe, type K for on-site drinking water use. Specifically, what technique should be used to connect the two for...
I have a project in Southern California where I have an existing 8" transite water pipe that I plan on tapping into for a new 3" domestic water service lateral. My 3" pipe will be Type K copper. I am looking for the least expensive way to connect the two pipes. The easiest...
