One big positive for AF systems vs dry systems - they don't rust out in 10-20 years like dry systems seem to do. Dry system require flushing and annual testing also. I have done both. System replacement, in a residential buildings is expensive.
Art ATCO Fire -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roland Huggins Sent: Thursday, July 05, 2007 10:29 AM To: [email protected] Subject: Re: Unusual Situation The maintenance can really be a pain too. For instance, if the concentration is a little low, you have to drain the entire system, modified the captured solution (or replace it), then pump it back into the system. That can be interesting on a 500 gallon system. NFPA 25 has historically been too vague on this aspect but that will be clarified in the 07 ed being released soon (around Sept). Roland On Jul 5, 2007, at 7:13 AM, Rod DiBona wrote: > In my opinion this is a really bad idea. Been there and done that and > the dry system is the better choice here by far. If I were you I would > sit down with them and educate them on all of the issues that you have > just addressed with the antifreeze and I WOULD definitely tell them of > the approximate replacement cost. What does the antifreeze have to do > with if it was 13 or 13R? What is the water source if the > underground is > to be filled w/ af. Remember this must be glycerin if it is going > to be > cpvc. Was the 10 yr old system galvanized? > > Rod DiBona > Rapid Fire > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Coastal > Sent: Tuesday, July 03, 2007 7:43 PM > To: [email protected] > Subject: Unusual Situation > > Hello sprinklerforum, > > I am open to suggestions on this one. > > We have a customer in a 4 story residential building wanting to > replace the entire system due to rusted/leaking pipes in the old > system. > > > They are requiring the system to be installed with CPVC piping. > > They are requiring the ENTIRE system to be filled with > Anti-Freeze including the underground. > > They are wanting to put the DCDA Backflow, Then the Alarm Valve, > Then the RPZ Backflow and Expansion Tank into a hotbox outside. > > To me it looks like the use of Anti-Freeze bumps it to a 13 > system instead of 13R. The new piping is to be built into new > soffits on > the outside of the building walkways. They have a Dry Pipe system now > and do not want the leaking problems they have now to recur in a few > years like the existing 10 year old system. I am not even bring up the > subject of Anti-Freeze recovery/reuse when the system is tested or > when > the Alarm company does a flow to test the WF switches quarterly. The > Main Drain flow test is another subject... > > -- > Best regards, > Charles Thurston > Coastal Fire Protection > mailto:[EMAIL PROTECTED] > > > _______________________________________________ > 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) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:Sprinklerforum- > [EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ 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) _______________________________________________ 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)
