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re: OT Plumbers, why are businesses having to put backflow preventers in now?

Posted on 9/26/14 at 10:25 am to
Posted by CootKilla
In a beer can/All dog's nightmares
Member since Jul 2007
5917 posts
Posted on 9/26/14 at 10:25 am to
How would water get into a gas line?
Posted by weadjust
Member since Aug 2012
15158 posts
Posted on 9/26/14 at 10:33 am to
Flood water causes ground erosion breaking gas line. Gas is cut off allowing flood water to enter gas line.
Posted by Napoleon
Kenna
Member since Dec 2007
69218 posts
Posted on 9/26/14 at 12:31 pm to
an oven under water in a flooded house.

Not all gas appliances have electronic solenoids to shut off flow.

Posted by White Roach
Member since Apr 2009
9460 posts
Posted on 9/26/14 at 12:34 pm to
CootKilla:
Water in gas lines was a huge deal for a couple of YEARS after Katrina in Orleans Parish. It really messed with restaurants - the water would bleed through a gas range burner and foul up the orifices.
Posted by Meauxjeaux
98836 posts including my alters
Member since Jun 2005
40156 posts
Posted on 9/26/14 at 12:49 pm to
quote:

How would water get into a gas line?


FWIW backflow prevention really is a big deal.

Any water main break ever and suddenly you have a loss of positive pressure throughout a lot of the system.

Any garden hose laying around in a puddle sewage or muck then becomes a suction of that crap right back into the potable water system.

That's why vacuum breakers are becoming required on garden hoses and utility tubs in a home.

I'm not a big regulation kind of guy, but this one is a real need.

Again, most of it has been around for a long time.

ETA: Full disclosure... family business sells a shiteton of backflow preventers.
This post was edited on 9/26/14 at 12:51 pm
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