Does the larger pump come on based on a flow switch? I suspect it would be on a pressure switch. If so Plotting the curve of the smaller pump alone down to the point the larger pump kicks on rather than the smaller pump alone should work. Try plotting both curves and see how the system fits.
If there is a long expected delay between the second pump coming on wouldn't a increase in the design area be prudent. Andy Johnston Andy Johnston Master Craft Plumbing Contractors Inc. Phone (386)252-7047 Fax (386)898-0322 Your are welcome to call my Cell (386)547-4970 The information contained in this transmission is privileged and confidential. No reader may make any use of it's contents with out the written approval of the sender. The recipient should not act or use the information in this transmission or any of its attachments without separate authentication of its authenticity or approval. If you have received this in error I apologize please notify me so I can correct my records. Thank you for your cooperation. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
