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Old 10-20-2019, 02:55 PM   #1
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Winterizing shower miser

Iím getting ready to winterize my 2608BS for the 1st time. My question is do I need to do anything with the shower miser line? I sure donít want to run antifreeze into my fresh tank. Hopefully the miser line self drains?
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Old 10-20-2019, 07:45 PM   #2
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I prefer to use air pressure to blow out the lines instead of antifreeze for that very reason. Once I have the air compressor hooked up I just work my way through the trailer making sure each fixture gets a dose of air, including the shower miser line. NOTE: I always start with the fixture farthest away from the water inlet and work towards the inlet.

I used that method on my previous trailer for 15 years and never had a problem. I just purchased a new Rockwood this year and the water lines are more complex, but I just worked through the process of making sure every possible line got a dose of compressed air. That includes the lines to the washer/dryer hookup and the black tank flush. I have also used compressed air to blow out the p-traps in the various drains, but anti-freeze is easy enough to use there if you prefer.
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Old 10-20-2019, 10:00 PM   #3
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Originally Posted by Roaminaround View Post
Iím getting ready to winterize my 2608BS for the 1st time. My question is do I need to do anything with the shower miser line? I sure donít want to run antifreeze into my fresh tank. Hopefully the miser line self drains?
Good question, from the Aqua View we site;

(Q) Any special steps when winterizing my RV?

(A) Caution: The person winterizing the RV should make sure they are not in bypass mode when winterizing as it will allow anti freeze into the Fresh Water Tank.

The above from http://showermiser.us/ FAQ page.

This does pose additional question if line does hold water who is responsible for the resulting damage?

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Old 10-21-2019, 07:49 AM   #4
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Good question, from the Aqua View we site;

(Q) Any special steps when winterizing my RV?

(A) Caution: The person winterizing the RV should make sure they are not in bypass mode when winterizing as it will allow anti freeze into the Fresh Water Tank.

The above from http://showermiser.us/ FAQ page.

This does pose additional question if line does hold water who is responsible for the resulting damage?

If "bypass mode" means routing water to the FW tank, and they tell you not to do that, then it sounds like they're saying you don't do anything with respect to winterizing the Showermiser.
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Old 10-21-2019, 08:29 AM   #5
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Shower Miser Answer

So emailed Aqua View, makers of the Shower Miser system and asked what are there recommendations for winterizing shower miser system, below is the response I got.

The best way would be to put a nylon diverter that you can buy at Home Depot in line at the connection point and have the one side go to the ground and the other side go to the tank when it goes to the ground you can use a tub to collect it

Depending upon which model RV you have some of them are already going to the drain line The Fill line or the breed line in which case you simply need to put in a stop valve


Not sure if Rockford installs the value or not, raining this morning so I have not gone out and looked at my 2612WS. Just in case I ordered a adapter to hook up my air compressor to the TT see if I need it.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I also fired off question to the dealer I purchased it from, post their reply when I get it.
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Old 10-24-2019, 08:12 AM   #6
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Iím going to call the dealer and ultimately may just use my air compressor to winterize. I used to do that with a previous trailer, then started going the anti freeze route. Iíve heard that many dealers and rv service/repair places use compressed air.
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Old 10-24-2019, 08:33 AM   #7
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b2b, I got the same blow out device and plan on using it for my first winterization, not using antifreeze except for drains and a little in tanks. I discovered this Spring that the dealer did the same thing, I was surprised when I did my first water test this Spring when no antifreeze came out. This is my first RV, but I'm confident that a blow out, done properly, will protect the plumbing. I've blown out plumbing on my hot tub at home numerous times using a shop vac and never had any issues, and the plumbing in that thing is crazy compared to RV plumbing.
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Old 10-24-2019, 11:31 AM   #8
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b2b, I got the same blow out device and plan on using it for my first winterization, not using antifreeze except for drains and a little in tanks. I discovered this Spring that the dealer did the same thing, I was surprised when I did my first water test this Spring when no antifreeze came out. This is my first RV, but I'm confident that a blow out, done properly, will protect the plumbing. I've blown out plumbing on my hot tub at home numerous times using a shop vac and never had any issues, and the plumbing in that thing is crazy compared to RV plumbing.
Got mine done last night, expecting freezing weather the next couple of days. Since I had already used antifreeze I had to blow it all out before blowing out the Water Miser. Found out rather quickly I had to do all lines, kitchen and bathroom along with draining the water filter cylinder before I was no longer blowing AF out of the shower.

I drained the fresh water tank earlier and was surprised when I got done how much water was in the miser line, glad I did it. I hadn't thought about it until I read this post, thanks to the OP! One other thought, since I had already used antifreeze I did not think it necessary to drain the pump as it is now full as you hook up the compressor adapter to the city water connection. Not sure if you already know that.
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Old 10-24-2019, 05:07 PM   #9
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Ok I got it done. I ran the compressor thru city water line. 25 psi. Used that to blow out all lines including water miser lines into fresh tank. Water came shooting out of the tank fill cap as the already empty fresh tank became pressurized from blowing out the miser line. I then ran anti freeze thru the outside anti freeze inlet and got it all done with 1 gallon. I unscrewed the filter canister ( I had drained it initially) and used that antifreeze in the p-traps. Having the shower miser required running compressed air to winterize that line. Took me an hour. My old trailer was a 15 minute job.
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Old 10-25-2019, 09:51 AM   #10
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I'm planning on blowing the entire system out with oil-free compressed air set at 50 psig initially, which will include opening the Shower Miser bypass and forcing any trapped water back into the fresh water tank. I'm going to purge the system with the fresh water tank drain valve open.

I will also purge the black tank rinse line with air to force any potentially trapped water into the black tank.

Then do the antifreeze after the system is purged with compressed air.
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Old 10-25-2019, 10:50 AM   #11
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I'm going to purge the system with the fresh water tank drain valve open.
Good idea, you won't over pressurize tank that way when you blow miser line. Still not going to bother with antifreeze except for drains. If blowing lines only worked for dealer when i picked it up, it will work for subsequent winters as well. I know, don't forget toilet flush valve.
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Old 10-26-2019, 12:16 PM   #12
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I had all my lines done but neglected the miser. I bought two more gallons of antifreeze and let the miser suck them down. Not much came out of the FW tank when I pulled the drain release. I suspect with the 58 gallon tank the 2 gallons didn’t make a dent as far as draining.

I’ll get the tank rinsed out well in the Spring when I sanitize. I don’t boondock and have no need for the tank or the miser really. I couldn’t care less if there is some antifreeze in the FW tank.
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Old 10-28-2019, 07:00 PM   #13
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Originally Posted by Roaminaround View Post
Iím getting ready to winterize my 2608BS for the 1st time. My question is do I need to do anything with the shower miser line? I sure donít want to run antifreeze into my fresh tank. Hopefully the miser line self drains?
I blew out the shower miser with air then flipped the lever back to shower mode then siphoned up the antifreeze. Did the same last year with no issues and cold winters here in PA.
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