Doug, now that you have set the situation right as it were, have you pumped (hydro'ed) the FDC to the cla val? and have you made sure it is not installed backwards......arrrow towards the riser, and I noticed the detail "opitional seating metal to buna-n" on the pdf, I know your ina hole but this could be your loss..in a nut shell he he
On Sat, Apr 24, 2010 at 9:33 PM, Doug Hicks <[email protected]> wrote: > The FDC is in the yard of a drug and alcohol treatment center. Yes, the > cement covered pipe is the underground from the FDC to the pit with the > sprinkler line to the builidng. > > I am not sure if we havhole in the underground piping or not. I want to > try other remedies before digging a 5 foot hole in the ground . > > We drilled a hole in the pipe for a ball drip because > 1. There is no provision for a ball drip valve in the 581 Cla Val check > valve. > 2. All of the FDC piping I have seen has a ball drip valve > 3. NFPA 13-2007 Figure A.8.17.2(b) shows a ball drip > > -------------------------------------------------- > From: "Matt Grise" <[email protected]> > Sent: Thursday, April 22, 2010 5:31 AM > To: <[email protected]> > Subject: RE: Leak in FDC > > > Doug, > > > > Just to clarify: > > > > This is a remote FDC? The cement covered pipe is the underground run from > > the building to the remote FDC? The problem is water leaking out of the > > FDC hose connections? > > > > Also: > > Why did you drill a hole in the cement covered pipe? > > > > Matt Grisé PE*, LEED AP > > > Subject: Leak in FDC > > > > We are still having problems with an FDC leaking. We replaced the FDC, > > removed the ClaVal 581 check valve and cleaned it. We drilled a 2" hole > > in a cement covered pipe and found one hole drilled is the life span of > > the hole saw. Drilling the pipe makes a horrible noise also. > > > > But we still have water being introduced into the underground pipe. The > > cement covered pipe screws into a 4 inch galvanized pipe that exits > > vertically from the ground. We could have a leaking 581 valve, we could > > have a leak in the pipe and are having ground water forced into the pipe. > > > _______________________________________________ > 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]<to%[email protected]> > (Put the word unsubscribe in the subject field) > -- Tom Poisal, CET _______________________________________________ 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)
