Limit the volume trapped when you pull the plug. WIth out it, it makes mess and can be dangerous if the system has high pressure for some reason. Sent from my BlackBerry® smartphone with Nextel Direct Connect
-----Original Message----- From: "Brad" <[email protected]> Sender: [email protected] Date: Tue, 13 Jul 2010 10:27:40 To: <[email protected]> Reply-To: [email protected], [email protected] Subject: Drum Drip- why 2 valves? Why is the 'bottom' valve req'd? The 'top' valve is normally open-- close it, remove the plug, drain the drum, replace the plug, open the valve. Is there some practical reason for the bottom valve? _______________________________________________ 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)
