Dave Williams wrote:
On the current "this old house" project, the owners had to install
sprinklers - the
system they described was to precharge the system with anitfreeze and use a
funky
valve to the water main to hold the antifreeze in - you could probably put
this valve
inside the main house (where its warm) and not worry about the freezing
problem
again... (too bad that show never gives you much information on what the
"retail"
cost of all the whizzy things they are doing)
rkg
(Richard George)
> Still, they're wooden buildings, and paranoia has made me investigate
> fire suppression systems. WW Grainger and McMaster-Carr have the spray
> heads for overhead sprinklers. The main problem is freezing if I'm not
> out there in the winter time. I've considered heat tape, or just
> pressurizing the water lines with argon from the MIG welder to push the
> water below the frost line. Cobbling the whole thing up with plastic
> pipe and sprayers from Grainger would cost about $200, surely a good
> return on investment. I'm still waiting for round tuits.
>
> A homemade sprinkler system like above can work just fine. Plenty of
> design data is available. Commercial sprinklers are hideously expensive
> because they're certified by various organizations. This certification
> is required to get reduced insurance rates from the underwriters. It
> turns out only a very few underwriters even care if your house has a
> sprinkler system, nobody cares about outbuildings, so it doesn't matter
> if it's certified or not.
>
> ==dave.williams@chaos.lrk.ar.us======================================
> I've got a secret / I've been hiding / under my skin / | Who are you?
> my heart is human / my blood is boiling / my brain IBM | who, who?
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