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Old 01-17-2018, 12:37 PM   #1
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Should I be worried about my Seneca freezing.

Hey guys, I live in Houston, TX and have owned Seneca's for several years. We have never had to winterize because it never gets that cold here.
Well, guess what the temperature has been in the low twenties for over 24 hours and I now worried about the water lines and pump. I do keep it in a storage unit with 3 walls and I did drain the unit a the low point drains and put antifreeze in the sinks and shower to protect the pee traps.
You guys that live up north and have lots of experience with this type of weather I would love to hear your input.

Thanks,
Rick
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Old 01-17-2018, 12:44 PM   #2
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Rick,
Do you have access to an air compressor to blow out all the lines? Short of a a full-blown antifreeze infusion, it is the next best thing. For some, it is all they do. Might need to warm it up with the furnace to thaw any low spots water might have settled in and froze.

Watch things carefully when it warms up, you might already have cracked a plumbing elbow, which will leak later. The pex piping is resilient, but the elbows are the weak link.
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Old 01-17-2018, 12:47 PM   #3
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I would not be overly concerned, pex is very flexible and doesn't easily break with freezing. That being said I would blow out the lines anything its going to get below freezing.
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Old 01-17-2018, 12:58 PM   #4
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It looks like after tonight the Houston area won't get below freezing anytime soon. When you opened the low point drains did you open the faucets to help bleed off any pressure in the lines. You should be ok since the daytime temps will be above freezing.
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Old 01-17-2018, 01:18 PM   #5
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Thanks guys for your response. I have an air compressor so what is the procedure for blowing out the lines?
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Old 01-17-2018, 02:10 PM   #6
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Do a search on you tube to see how. Very easy. Blowing the lines out works for me in TX with fully enclosed storage. We had 20 last night. Don't forget the water line to the ice maker.

You will need to buy or make a fitting to connect to the water fill - which connects the air compressor line.
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Old 01-17-2018, 02:12 PM   #7
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I use an adapter I made, but you can get them at most any RV store too. It allows air to be introduced at the panel "water in" fitting. I regulate my air to about 25 - 30 psi and open the faucets in turn. Also cycle all the low point drains. I blow till it is (mostly) dry air coming out. Flush the toilet several times too. Cycle all the valves on the panel also to blow out those lines. Set them to "Country Fill" and turn on the water pump for a bit to push any water through the pump too. It won't hurt it to be run dry for a short time. I also remove my water filter before I start and replace the empty housing. No point in blowing a quart of water into the system when you are trying to empty it.

Then you need to put more antifreeze into the traps since it has now been diluted. Empty your tanks and to be extra safe put some antifreeze down the drain and toilet so it protects the dump valves from any remaining water.
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Old 01-17-2018, 02:19 PM   #8
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Quote:
Originally Posted by Rick-in-Houston View Post
Thanks guys for your response. I have an air compressor so what is the procedure for blowing out the lines?
Go to Menards, if you have one in your area, and buy a male garden hose to air compressor fitting. I have only seen them at Menards, in the individually bagged brass fitting section. Or you can make one up with a variety of components. Screw it into the city water connection, set the AC (air compressor) regulator to under 40 psi. Connect the AC hose to the city water connection, co inside and open each valve, I usually start the faucet farthest away, for me that is the kitchen sink. Then I just work my way around to all the faucet, don't forget the toilet, outside shower, and the black tank flush.

If you have a tanked water heater I would drain it manually while you are setting the AC up.

I do not worry about the pex freezing, I worry about the fittings.

If the temp will below freezing for just a few hours, I would not worry to much about it, but a full 24 hours of below freezing, I would drain everything.

Your first time will take you a little longer, but 20 minutes and you should be done.

You can also buy a female hose to AC adapter. I use this on my garden hose bibs at the stick house to blow the larden hose lines out, but I have all my hose bibs tied to one master shutoff, so they are easy to blow out for the winter.

Robbbyr, also has a good point, make sure to blow out the water pump, including the prefilter screen.
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Old 01-17-2018, 02:43 PM   #9
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Blowing out the lines and/or winterizing with RV Antifreeze is the best and safest approach. That said, we see mid 20's all the time and all I do is keep the heat on (either furnace or electric space heaters).
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Old 01-17-2018, 03:25 PM   #10
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Thanks again Guys for your help. I just hope it not too late.

Rick
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