You are correct Steve.... the port on the BFP valve is down stream of the
check valve on the sprinkler side of the valve so the BFP offers no
resistance or blockage for the air at this point... really convenient for
doing what we???re discussing.
j
-----Original Message-----
From: Steven Trovato via Shop-talk
Sent: Tuesday, November 05, 2019 12:14 PM
To: Shop Talk
Subject: Re: [Shop-talk] Winterizing Sprinkler System
I shouldn't really be speaking for John, but I
think he is just saying that his backflow
preventer has a convenient port that he uses to
connect. I don't think he is saying that the
backflow preventer presents any other problem for
the operation. I am sure John will let us know if I am correct.
-Steve T.
At 12:48 PM 11/5/2019, Jim Stone via Shop-talk wrote:
>Thanks, guys. I just bought the adapter; it will be here on Thursday, well
>ahead of any freezing temperatures.
>
>John????????s comment about a backflow preventer valve does have me rethinking
>one aspect of my plan. The system installer put in an outside hose barb
>that he intended for blowing out the system, but I had thought it made
>sense to move ahead of that and start where the system originates in the
>basement. I can isolate the sprinkler from the rest of the system and blow
>it out from there. Unless there is a good reason not to do it that. If
>there is a backflow preventer valve between the hose barb and the basement,
>might there be a problem blowing it out from there?
>
>Jim
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