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Old 10-13-2022, 09:31 AM   #21
{tpc}
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Originally Posted by sourdough View Post
You pretty much got the entire system sounds like. Did you open the toilet to run anti freeze through it? As for the black tank flush line and fresh water inlet just put the compressor on them and blow them out gently. The water (if any) will just go into the tanks and won't be an issue.
Yup I did get the toilet as well. Next year I need to replace the seal, but that looks like an easy job, bowl wasn't holding water for very long before I winterized.

I'll look around at work, we used to have some small portable air tanks that I could fill and borrow. It won't do as well as the compressor but easier to transport. I just have to find the time to get back out there!!
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Old 10-13-2022, 09:46 AM   #22
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Originally Posted by {tpc} View Post
Yup I did get the toilet as well. Next year I need to replace the seal, but that looks like an easy job, bowl wasn't holding water for very long before I winterized.

I'll look around at work, we used to have some small portable air tanks that I could fill and borrow. It won't do as well as the compressor but easier to transport. I just have to find the time to get back out there!!
IMO, the most vulerable section of PEX that you omitted is the city water connection port and its one way valve. It's very likely that from that point to the Tee with the water pump is filled with water, not antifreeze. If you do nothing, you'll probably find a busted valve body in the city water inlet come spring. I'd think that using compressed air to push that water away from the city water inlet will serve to protect that valve body and the water you push into the PEX tubing probably won't be enough to dilute the antifreeze that's already there. I think you'll be find with just using a small amount of air (AT PRESSURE BELOW ABOUT 25-30 PSI) to push that water away from the inlet valve.

Otherwise, unless you have a problem with a plugged black tank flush nozzle, removing the anti-siphon valve will allow the small amount of water in that side of the black tank flush loop to drain down, into the black tank (about a cup or so of water) and lay on the bottom of the black tank. It shouldn't cause any issues either, so I agree with Danny, nothing to cause you to re-winterize, just take care of those couple of vulnerable spots and you should be OK.
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Old 10-20-2022, 07:04 PM   #23
rogerinamarillo
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I've used that same process for years with no problems and have stored in low single digit temps.
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Old 10-23-2022, 05:02 PM   #24
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7 years now I open the lower drains and all faucets. Close same. Then connect an adapter to the input of the fresh water tank and run all the faucets till they run pink. Pour some pink into the toilet and good to go.
Usually takes 2 gallons.
May be better methods?
Works for me and trust me in Western NY we get COLD weather.
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