If there are no hydrants/hose valves downstream of the tank, you don't need the 250 gpm added. If there are hydrants downstream of the tank, are you going to have to meet site fire flow requirements per the IFC? If you have to do that, your tank size is going to be huge!
On 5/9/2010 12:10 PM, A.P.Silva wrote: > When sizing a water tank, > > OH design requires 60 to 90 minute water supply for sprinklers > > Is 250 gpm outside hose allowance also 60 to 90 minutes? > > It seems to me they are both independent requirements. There will be a time > lag between the two and the fire department could be drawing out more than > the 250 gpm, for a longer or shorter duration. The question is will the > intent of the code be satisfied if the total water requirements (sprinklers > and hose allowances) be supplied for 60 to 90 minutes? > > Tony > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
