On Nov 21, 8:28*am, Mensur wrote:
On Nov 21, 6:52*am, ransley wrote:





On Nov 20, 6:56*pm, Mensur wrote:

I have anirrigationsystem that I need towinterize. In the past I
used to hire a guy who installed the sprinklers but since I already
have the compressor and everything else I need, I'd rather save $70.
I've seen him hook up the compressor somewhere on the back low but I
don't know where. I was hoping that someone would be able to tell me
where to attach it and if there is anything else special I would need
to do.

Here are some pictures of my backflow:

http://www.medicfamily.com/tmp/DSC02...edicfamily.com....

Thanks!

* How big is your compressor, mine is to small it has to little
volume, the one my sprinkler co uses is a big unit towed behind their
truck im sure if they only needed a small unit that is what they would
always use.

* What do you do to keep the backflow preventer from freezing, I see
no lower drain provision, I remove mine it has a flange that unbolts
easily and I dont see that on yours, where do you live and how has
that been protected in the past as mine would have been ruined by now,
its 19 this morning. I see a spigot on the pipe from the backflow, I
will bet air goes there and clears the backflow out, if its gotten
under 32f for any length of time already you will have a $350 junk
backflow valve by now, and yours is not a 5 minute removal like mine.
I would change that set up so you have 2 easy to unbolt flanges, if
any water leaks past the interior shutoff it will settle at the bottom
of the backflow and freeze if an interior line drain is left closed,
mine leaks. My backflow was a 550 instal.

*If it was my backflow Id sawzall off the valve at the vertical pipe
and be safe this winter, and next year put on a quick remove flange,
whare do you live.

I live is South Carolina - it doesn't get too cold but it definetely
gets below 32F. I didn't do my winterization in the past - a guy that
installed the system did it before so I am not sure how he did it.
While he was there, all I could notice is that he attached a small
portable compressor and blew the water out.

I have a 33 gallon compressor that should do the trick especially if
the company was able to do it with a small portable compressor.

One thing I didn't mention is that I have a separate water meter and a
separate line for my irrigation so spigot on the house is not fed from
the same line.- Hide quoted text -

- Show quoted text -

Still, here we dont leave 350$ backflow preventers outside, address
that issue before its 32 out, maybe a 33 gallon will work, attach to
the hose fitting. You say it gets below 32, but does it freeze at pipe
depth.