I'll offer a little clarification regarding NSF...the legal responsibility to use NSF certified products will depend on your locality and application. In Washington state, for example, they require that certain materials and chemicals used in drinking water treatment be NSF approved, although...
I'm working on a design for a 24'x28' CMU masonry building with a gable roof consisting of wood trusses at 24" o.c. The diaphragm is to be plywood sheathing on the wood roof trusses. The truss to wall connection will be similar to the attached file. The building is in Seismic Design Catagory...
Pumping rate into the tank is to be 80 GPM to meet system MDD.
I am pushing to keep money in the budget to perform tracer testing of the finished tank and baffling so that we can determine actual CT values of the "as-built" system and then look at ways to improve the CT through the tank if...
Thanks for your advice. The tank is to sit on the ground and is expected to be roughly 28 feet in diamter by 52 feet or so high. I've been wary of this idea but it sounds like curtain baffles could work. Using mixers within the tank and treating the tank like a large batch reactor is also an...
Does anyone have any experience or thoughts about using a large water storage reservoir to obtain the chlorine contact time for a hypochlorite disinfection system? I have been asked to look at the possibility of adding hypochorite prior to a 240,000 gallon circular water storage reservoir and...
