I am working on a project for a facility with several small and medium sized
buildings. Only some of the buildings are sprinklered. This location has a
plethora of problems but I only have one that i will bring here.
The facility has a very bad water supply and a new building was constructed,
complete with fire pump, to meet a demand of 825 gpm. Also on this site is a
fire pump house with a 400 gpm at 75 psi pump that takes suction from the main.
I was told this pump only feeds a dedicated main to 3 buildings. However, I
subsequently found that the pump actually ties into the underground feeding the
entire site, including the new building. Now I have a main fed by a pump with a
maximum flow of 600 gpm feeding a 750 gpm pump. Is there any way to get this to
work? There is no by-pass around the 400 gpm pump. Not sure if that would make
a difference. I would appreciate input from those mightier than I.
Neither pump has ever passed its initial test due to the water supply.
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080 (tel:860-535-2080) (ofc)
860-554-7054 (tel:860-554-7054) (fax)
860-608-4559 (tel:860-608-4559) (cell)
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