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Jim,
I'm going to assume this is a similar thing to winterizing a swimming
pool.
For pools, there are frequent warnings abounot using a compressor to blow
the lines, or to make sure to keep the PSI below 20.
It is frequently mentioned that a shop vac or dedicated blower tool is
preferred. The thought is that to remove the air high pressure is not the
goal (and that high pressure and damage the PVC pipe and related fittings)
but rather high volume. And that a shop vac is the better way to achieve
that.
At least that's what the internet said.
I used my compressor, set to 15 psi. I guess we'll know in the spring how
I did--it just hit 18 degrees here this morning.
It sounds like your sprinkler system operates similarly.
On Fri, Nov 8, 2019, 8:24 AM Jim Stone via Shop-talk <
shop-talk@autox.team.net> wrote:
> The Amazon adaptor arrived yesterday, so I thought I=E2=80=99d update thi=
s with
> some new information. The adaptor was well made and the shut-off valve
> proved to be very handy; it was well worth the $20. It also came with
> excellent instructions that mostly agreed with what was said here, with o=
ne
> exception: it said =E2=80=9Cavoid blowing compressed air through the PVB =
because
> doing so may damage the BVP.=E2=80=9D I assume my system has a BVP in it=
, but
> can=E2=80=99t find it and just went ahead and blew it out from the baseme=
nt as
> discussed.
>
> The instructions also recommend that the compressor should be "as large a=
s
> possible, preferably 15 gallons or larger.=E2=80=9D I think that is good=
advice,
> as my little HF 8 gallon compressor was barely (I think) up to the task. =
I
> initially set it to 50 lbs, the recommended pressure, but it was only
> putting out about 40 lbs during use, so I turned that up to get it a litt=
le
> higher. Even so, the compressor would fully extend the spray heads for t=
he
> first 15 seconds or so, then just bubble water out with the head
> retracted. The compressor ran constantly while the system was on, so I
> gave it a rest between blowing out each zone. I also blew out each zone =
at
> least three times, but there was sill some spray at the beginning each
> time. I am going to do it one more time today, but know it won=E2=80=99t=
be
> completely dry. I assume it won=E2=80=99t be an issue when the little bi=
t of water
> remaining in the system freezes, but someone please let me know if I am
> wrong about this. My 60 gal compressor is about 150 yards away from the
> water inlet, but I could make that work if necessary.
>
> Just in time, as the cold weather arrived today, with the first below
> freezing temps expected tonight.
>
> Cheers,
> Jim
>
> On Nov 5, 2019, at 11:32 AM, Jim Stone <1789alpine@gmail.com> wrote:
>
> I need to drain and winterize my new sprinkler system and can=E2=80=99t i=
magine I
> need to pay someone to do that job. While I understand the =E2=80=98prop=
er=E2=80=99 way to
> do it is to manually open each valve, I was told a few years ago that it =
is
> easier to just pressurize the system at the drain valve and then use the
> manual function on the controller to run through each zone until no more
> water comes out. (FWIW, my system is not that large and has 6 zones.). I
> was thinking about rigging something up that would allow me to attach my
> compressor and walk away, but found this on Amazon, which seems like a go=
od
> investment that would pay for itself on the first use:
> https://www.amazon.com/Winterize-Sprinkler-Systems-Outdoor-Faucets/dp/B00=
55QAAIQ/ref=3Dasc_df_B0055QAAIQ/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadid=3D30=
9735714375&hvpos=3D1o1&hvnetw=3Dg&hvrand=3D11131050794144962178&hvpone=3D&h=
vptwo=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hvlocphy=3D9004590&hvta=
rgid=3Dpla-570302725618&psc=3D1.
> I could save around $10 and just buy a hose to quick disconnect fitting,
> but the shut off valve seems like a good addition.
>
> I have fairly large compressor, but think it will be more trouble than it
> is worth to get air to the master drain valve. Instead, I was planning o=
n
> just using my Harbor Freight 8 gal portable compressor. (
> https://www.harborfreight.com/8-gal-2-hp-125-psi-oil-lube-air-compressor-=
68740.html).
> My water pressure is regulated to 60 lbs, so I figured something around
> this should be sufficient.
>
> Am I missing anything? Is there any good reason to pay a professional to
> do this job? It seems like a no-brainer to me, but I=E2=80=99ve been cal=
led a
> no-brainer before.
>
> Thanks,
> Jim
>
>
> _______________________________________________
>
> Shop-talk@autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation $12.96
> Archive: http://www.team.net/pipermail/shop-talk
> http://autox.team.net/archive
>
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> http://autox.team.net/mailman/options/shop-talk/scott.hall.personal@gmail=
.com
>
>
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<div dir=3D"auto">Jim,<div dir=3D"auto"><br></div><div dir=3D"auto">I'm=
going to assume this is a similar thing to winterizing a swimming pool.=C2=
=A0=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">For pools, the=
re are frequent warnings abounot using a compressor to blow the lines, or t=
o make sure to keep the PSI below 20.=C2=A0=C2=A0</div><div dir=3D"auto"><b=
r></div><div dir=3D"auto">It is frequently mentioned that a shop vac or ded=
icated blower tool is preferred.=C2=A0 The thought is that to remove the ai=
r high pressure is not the goal (and that high pressure and damage the PVC =
pipe and related fittings) but rather high volume.=C2=A0 And that a shop va=
c is the better way to achieve that.=C2=A0</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">At least that's what the internet said.=C2=A0</div><=
div dir=3D"auto"><br></div><div dir=3D"auto">I used my compressor, set to 1=
5 psi.=C2=A0 I guess we'll know in the spring how I did--it just hit 18=
degrees here this morning.=C2=A0=C2=A0</div><div dir=3D"auto"><br></div><d=
iv dir=3D"auto">It sounds like your sprinkler system operates similarly.=C2=
=A0=C2=A0</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=
=3D"gmail_attr">On Fri, Nov 8, 2019, 8:24 AM Jim Stone via Shop-talk <<a=
href=3D"mailto:shop-talk@autox.team.net";>shop-talk@autox.team.net</a>> =
wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:brea=
k-word;line-break:after-white-space">The Amazon adaptor arrived yesterday, =
so I thought I=E2=80=99d update this with some new information.=C2=A0 The a=
daptor was well made and=C2=A0the shut-off valve proved to be very handy; i=
t was well worth the $20.=C2=A0 It also came with excellent instructions th=
at mostly agreed with what was said here, with one exception: it said =E2=
=80=9Cavoid blowing compressed air through the PVB because doing so may dam=
age the BVP.=E2=80=9D =C2=A0I assume my system has a BVP in it, but can=E2=
=80=99t find it and just went ahead and blew it out from the basement as di=
scussed.<div><br></div><div>The instructions also recommend that the compre=
ssor should be "as large as possible, preferably 15 gallons or larger.=
=E2=80=9D =C2=A0I think that is good advice, as my little HF 8 gallon compr=
essor was barely (I think) up to the task.=C2=A0 I initially set it to 50 l=
bs, the recommended pressure, but it was only putting out about 40 lbs duri=
ng use, so I turned that up to get it a little higher.=C2=A0 Even so, the c=
ompressor would fully extend the spray heads for the first 15 seconds or so=
, then just bubble water out with the head retracted.=C2=A0 The compressor =
ran constantly while the system was on, so I gave it a rest between blowing=
out each zone.=C2=A0 I also blew out each zone at least three times, but t=
here was sill some spray at the beginning each time.=C2=A0 I am going to do=
it one more time today, but know it won=E2=80=99t be completely dry.=C2=A0=
I assume it won=E2=80=99t be an issue when the little bit of water remaini=
ng in the system freezes, but someone please let me know if I am wrong abou=
t this.=C2=A0 My 60 gal compressor is about 150 yards away from the water i=
nlet, but I could make that work if necessary.</div><div><br></div><div>Jus=
t in time, as the cold weather arrived today, with the first below freezing=
temps expected tonight.</div><div><br></div><div>Cheers,</div><div>Jim<br>=
<div><br><blockquote type=3D"cite"><div>On Nov 5, 2019, at 11:32 AM, Jim St=
one <<a href=3D"mailto:1789alpine@gmail.com"; target=3D"_blank" rel=3D"no=
referrer">1789alpine@gmail.com</a>> wrote:</div><br><div><div style=3D"w=
ord-wrap:break-word;line-break:after-white-space">I need to drain and winte=
rize my new sprinkler system and can=E2=80=99t imagine I need to pay someon=
e to do that job.=C2=A0 While I understand the =E2=80=98proper=E2=80=99 way=
to do it is to manually open each valve, I was told a few years ago that i=
t is easier to just pressurize the system at the drain valve and then use t=
he manual function on the controller to run through each zone until no more=
water comes out. =C2=A0(FWIW, my system is not that large and has 6 zones.=
). I was thinking about rigging something up that would allow me to attach =
my compressor and walk away, but found this on Amazon, which seems like a g=
ood investment that would pay for itself on the first use:=C2=A0<a href=3D"=
https://www.amazon.com/Winterize-Sprinkler-Systems-Outdoor-Faucets/dp/B0055=
QAAIQ/ref=3Dasc_df_B0055QAAIQ/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadi=
d=3D309735714375&hvpos=3D1o1&hvnetw=3Dg&hvrand=3D11131050794144=
962178&hvpone=3D&hvptwo=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=
=3D&hvlocint=3D&hvlocphy=3D9004590&hvtargid=3Dpla-570302725618&=
amp;psc=3D1" target=3D"_blank" rel=3D"noreferrer">https://www.amazon.com/Wi=
nterize-Sprinkler-Systems-Outdoor-Faucets/dp/B0055QAAIQ/ref=3Dasc_df_B0055Q=
AAIQ/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadid=3D309735714375&hvpo=
s=3D1o1&hvnetw=3Dg&hvrand=3D11131050794144962178&hvpone=3D&=
hvptwo=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hv=
locphy=3D9004590&hvtargid=3Dpla-570302725618&psc=3D1</a>. I could s=
ave around $10 and just buy a hose to quick disconnect fitting, but the shu=
t off valve seems like a good addition.<div><br></div><div>I have fairly la=
rge compressor, but think it will be more trouble than it is worth to get a=
ir to the master drain valve.=C2=A0 Instead, I was planning on just using m=
y Harbor Freight 8 gal portable compressor. =C2=A0(<a href=3D"https://www.h=
arborfreight.com/8-gal-2-hp-125-psi-oil-lube-air-compressor-68740.html" tar=
get=3D"_blank" rel=3D"noreferrer">https://www.harborfreight.com/8-gal-2-hp-=
125-psi-oil-lube-air-compressor-68740.html</a>). =C2=A0 My water pressure i=
s regulated to 60 lbs, so I figured something around this should be suffici=
ent.</div><div><br></div><div>Am I missing anything?=C2=A0 Is there any goo=
d reason to pay a professional to do this job?=C2=A0 It seems like a no-bra=
iner to me, but I=E2=80=99ve been called a no-brainer before.</div><div><br=
></div><div>Thanks,</div><div>Jim</div></div></div></blockquote></div><br><=
/div></div>_______________________________________________<br>
<br>
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</blockquote></div>
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