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Old 03-10-2019, 11:07 PM   #1
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Kitchen faucet supply lines freeze

Hello, I have a 2019 Forester 3271S Class C. It has the full length slide and the kitchen sink is part of it. We've been winter camping a few times because we just got it and can't stand it. If nothing else, I'm getting pretty good at winterizing. Hahah. It has tank heaters and everything seems to be fine when we're using the coach except a couple times the kitchen faucet stopped working. If I leave the faucet on, it will eventually start dripping and slowly increase to normal operation, but this could take hours.

Has anyone had this issue and what did you do to resolve it? I'm thinking maybe insulation or line heaters? Do you know where these pipes are routed and where they're exposed to the cold? Am I able to access that area to add extra protection, whatever that may be?

Thank you,
Tom
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Old 03-11-2019, 07:43 AM   #2
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Use unit heater and try leaving cabinet door open under the sink.
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Old 03-11-2019, 07:46 AM   #3
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You say the sink is in the slide correct? That means the lines are not really in a insulated spot like when the slide is pulled in. There has to be enough slack in the line to make it travel to the open position. Be careful not to bind it with insulation. To be honest I don't know what you can do except bringing in the slide at night. Can you see the water line exposed on the bottom of the slide? Slide bottoms are really not insulated that great to begin with. Only thing I can think of, just bring it in..Sorry
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Old 03-11-2019, 07:47 AM   #4
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Quote:
We've been winter camping a few times because we just got it and can't stand it.
Sorry couldn't answer your questions, but why are you winter camping if you can't stand it?
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Old 03-11-2019, 08:20 AM   #5
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Oh no, I meant I have a new toy and I can't stand not using it until summer. Hahaha.
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Old 03-11-2019, 08:22 AM   #6
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If u can get to the lines use electric pipe wrap
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Old 03-11-2019, 08:30 AM   #7
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Thanks for your response. My slide has a fiberglass bottom when looking from the outside so I can't see anything. I'm wondering if I remove the stove if I'll be able to see and access them better. In the sink cabinet, it looks like the lines go behind the stove and down. If I can't add pipe insulation because it would be too bulky, what about the electric heat tape? If I knew where the pipes are routed more specifically, I might even be able to put space heater pointed at that area from the outside just to take the edge off. I'd have to make sure not to get it hot of course. There has to be a simple solution.
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Old 03-11-2019, 08:35 AM   #8
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Thanks, I was using the unit heater but had it at 60 degrees and supplementing with an electric space heater. This reduces the condensation and saves propane, but possibly results in this issue. Maybe I'll open the cabinet and let some of the space heater warmth into the cabinet. Thanks again.
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Old 03-11-2019, 08:37 AM   #9
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How are you heating your rig during these cold camping trips?

If you are supplementing your furnace by using electric space heaters, then the heat may not be getting to the same areas as what the furnace provides.

Often times the furnace has ducting that heats areas where tanks and pipes are located. Using a space heater doesn't heat these areas.

You may try opening any cabinet doors or drawers to the area(s) where you are having an issue to allow heat to get into those areas.
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Old 03-11-2019, 08:44 AM   #10
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Looking at pics of your unit online here (https://www.mhsrv.com/2019-forest-ri...-c-tx-i2283040) your furnace is under your fridge, i.e., on the opposite side from your sink/slideout. Since I don't see any floor ducting, I'm guessing your furnace isn't doing much to keep the slideout warm.

Until you can figure out where the water tubing runs and get to it to do something to it, I'd say your only option is to open the cabinet doors under the sink and put your electric heater in front of it. If you have electric, then I'm assuming you have water hookups, so another option is to open the sink faucet just a bit and let it drip all night.
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Old 03-11-2019, 08:54 AM   #11
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Originally Posted by rockfordroo View Post
Looking at pics of your unit online here (https://www.mhsrv.com/2019-forest-ri...-c-tx-i2283040) your furnace is under your fridge, i.e., on the opposite side from your sink/slideout. Since I don't see any floor ducting, I'm guessing your furnace isn't doing much to keep the slideout warm.

Until you can figure out where the water tubing runs and get to it to do something to it, I'd say your only option is to open the cabinet doors under the sink and put your electric heater in front of it. If you have electric, then I'm assuming you have water hookups, so another option is to open the sink faucet just a bit and let it drip all night.
Just keep in mind you have holding tanks that catch your dripping water.
Make sure you have ample space in them so they don't fill from the dripping water and back up into your rig and cause a flood. There have been several reports of that very thing happening.

You may try leaving the grey valve open but many report the sewer hose freezes and then you have the same issue of water backing up into the rig from a dripping faucet.
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Old 03-11-2019, 08:57 AM   #12
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I'm using my furnace at 60 and supplementing with space heaters. I'll try opening cabinets and see if that helps. Thanks!
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Old 03-11-2019, 09:24 AM   #13
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If the furnace is set at 60 and the supplemental heat set higher, then the furnace is probably not running enough to provide much heat to the underbelly. On really cold nights you might try running the furnace more. Opening cabinets should heat some of the lines, but anything under the RV will probably need the furnace running.
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Old 03-11-2019, 09:49 AM   #14
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As another poster added, use electric pipe wrap tape, It comes in 12v and 120v versions. Add a switch or t’stat with the sensor near the coldest place. Beware of the draw if using 12v version while boondocking, tho.

I have low point drains that are exposed. I had one split once and saw the water dribbling out one morning after a freeze. Was able to plug it until I got home. I made a small insulated box to cover them and added a 12v incandescent bulb inside with a cheap mechanical t’stat on a switch, along with an added bulb in the wet bay. Have not had a problem since. The box has an added feature, to keep the crud off the valves. Mine are located in a bad spot to relocate them inside a warmer area, so the warming box was far easier.
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Old 03-11-2019, 11:36 AM   #15
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Quote:
Originally Posted by 5picker View Post
Just keep in mind you have holding tanks that catch your dripping water.
Make sure you have ample space in them so they don't fill from the dripping water and back up into your rig and cause a flood. There have been several reports of that very thing happening.

You may try leaving the grey valve open but many report the sewer hose freezes and then you have the same issue of water backing up into the rig from a dripping faucet.
Good point. I hadn't considered "the other end!"

Paulie has another good idea - put an incandescent light under the sink.
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Old 03-11-2019, 03:20 PM   #16
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The problem is...

Quote:
Originally Posted by 5picker View Post
Just keep in mind you have holding tanks that catch your dripping water.
Make sure you have ample space in them so they don't fill from the dripping water and back up into your rig and cause a flood. There have been several reports of that very thing happening.

You may try leaving the grey valve open but many report the sewer hose freezes and then you have the same issue of water backing up into the rig from a dripping faucet.
The problem with closing the grey valve is that water first fills that run of pipe from the tank to the valve. Water in the tank is no concern--the HDPE tank is flexible--but freezing water in that short run of fragile ABS pipe will split it every time.

Ask me how I know.

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Old 03-11-2019, 04:44 PM   #17
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RockfordRoo, fortunately, both bathroom and kitchen sinks are center of the rig, not on an outside wall. Have not had anything close to freezing issues there. I have an indoor/outdoor thermometer in the rig. When I run in the cold, I had put the outdoor portion under the sink a few trips to keep an eye on there. So far, it has never gotten cold enough to worry about. One time, I did run the furnace and set it at 40 during a trip as I had not winterized.
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Old 03-11-2019, 08:37 PM   #18
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Paulie - I wasn't telling YOU to use a light bulb. I was telling the OP that your light bulb was another good idea for HIS problem.
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Old 03-11-2019, 11:26 PM   #19
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RockfordRoo, sorry if I came across that way. I meant it to say that is why I didn’t think I needed one....and in retrospect, should not have brought it up...
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Old 03-12-2019, 06:31 AM   #20
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Kitchen faucet supply lines freeze

Quote:
Originally Posted by 5picker View Post
How are you heating your rig during these cold camping trips?

If you are supplementing your furnace by using electric space heaters, then the heat may not be getting to the same areas as what the furnace provides.

Often times the furnace has ducting that heats areas where tanks and pipes are located. Using a space heater doesn't heat these areas.

You may try opening any cabinet doors or drawers to the area(s) where you are having an issue to allow heat to get into those areas.


X2 my lines arenít in the slide but I do feel like I outsmarted myself this Christmas break. I thought I would use electric heaters to keep warm instead of my propane and sure enough kitchen sink froze. Second night I turned furnace to 68 I got some ice but not enough to block water and had full flow after a few minutes of running faucet . It got down to 14 ambient temperature next night ran both heaters but faced electric into open cabinet under sink temperature dropped to 11 but no problems
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