I have a 22,000 sq ft building, extra hazard 30gpm per 3200 sq ft, (extra 30% for dry type), what size of water storage tank is needed for the 60/90 minute requirement for supply?
This building was a food store and is changing to a library. Straight forward design, no library stacks to worry about and only reconfiguring sprinkler heads to match new ceiling grid layout. FPC wants to add a BFP. Is this required? Is this the liability of designer or should this have been...
I have a stucture divided into 4 zones. 3 at approx. 49,000sf and one at 10,000sf. What is the requirements for hydraulic calcs to determine if I need a pump. Does each zone need to be calculated for demand at EACH farthest 1500sf demand? What type of service pressure is required for a large...
A nursing home is experiencing severe pressure loss. The system has 2 10hp booster pumps and it was suggested increasing pump size would fix the problem. A recorder was added to the service side and most of the loss occurs during the early the early am hours when no laundry, landscaping or...
How is a system recharged after the test is completed? Is the jockey pump the only way to recharge or are they (jockey pump) only used to maintain pressure? Can the main diesel or electric pump be tripped without fear of damage to the pumps to recharge the systyem?
I designed fire protection for an addition to a large civic center facility. Existing diesel and electric pumps were adequate for the additional sq ft added. I was informed by the FP contractor that it took too long to recharge the system with the current 1/2hp jockey pump. They have recommended...
