I was taught to leave the top valve open and bottom valve closed and plugged, that way if the condensation is not drained and the bottom valves freezes/cracks you can close the top valve and repair the bottom valve.
Mike Brown Project Designer Sunland Fire Protection, Inc. 1218 Elon Place High Point, NC 27263 [email protected] Business: 336-886-7027 Ext. #140 Fax: 336-886-7024 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brad Sent: Tuesday, July 13, 2010 11:38 AM To: [email protected]; 'Sprinklerforum' Subject: RE: Drum Drip- why 2 valves? But with the top valve closed, there is no system pressure. -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, July 13, 2010 10:35 AM To: Sprinklerforum; [email protected] Subject: Re: Drum Drip- why 2 valves? 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 BlackBerryR 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) _______________________________________________ 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)
