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Old 05-09-2024, 01:52 PM   #1
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Water Miser Installation Question

I have a 28' Pottery Barn Edition, and I want to have a Water Miser diverter installed in the shower to conserve fresh water (and gray tank space) when boondocking while we wait for the water to heat up from the tankless system. Our showerhead is on the other side of our pantry wall, and the Airstream dealer wants $740 to do the plumbing and complete the Water Miser installation.

For anyone who has had this installed, does this make any sense? Of course I wouldn't do it at this price. What have others done, and how many labor hours did it take (or did you do it yourself?).

Thanks -

Patrick
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Old 05-09-2024, 03:41 PM   #2
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I Googled "Water Miser", but I'm not sure what you want to install. Can you provide a link to what you are considering?
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Old 05-09-2024, 03:50 PM   #3
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Here you go

https://youtu.be/YLI1FXNur80?si=MAkhpPFyE3GxzFXm
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Old 05-09-2024, 05:53 PM   #4
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Installed mine myself in about 2 -3 hours. Different layout than yours, but I had to remove a closet floor and wall to get to the plumbing.
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Old 05-09-2024, 08:24 PM   #5
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You can just buy an identical diverter valve and install it yourself. The changing color pipe is a bit gimmicky, all you have to do is run the hot water and count how long it takes for hot water to get there, or feel the valve itself. You can buy the valve here:

https://amzn.to/4ben2f8

Our camper is way older than yours, but the installation logic should be similar, so here is our write-up

https://shinyhappytravelers.com/plum...ess-hot-water/
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Old 05-10-2024, 07:48 AM   #6
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Really helpful Justen (and Rich), much appreciated.
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Old 05-10-2024, 09:40 AM   #7
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Hi Patrick,

I have a 2021 25’ FC and I installed a shower miser on mine to help conserve water usage with the tankless hw heater. We now use it to heat up water for the bathroom and kitchen sinks. We both view it as a must have upgrade with the tankless system.

I installed it myself in less than 2 hours. Total cost was less than $200 including PEX tools that I did not have yet, but wanted to have on hand anyway.

I agree with the earlier post that the mushroom color changing part is not necessary and saves a hole cut in the shower; we just count to 15 and the water is hot for a shower. The hole cut in the shower stall is the most nervy thing too so I did not want to do 2. There is a separate shower miser version without the color changing mushroom.

I used and edited instructions from a prior post and can share if you want to do it yourself. Granted your configuration will be a bit different, but the concept is the same.

I can see with parts at $200/hr labor that a dealer could get up towards $700ish, but it would be 3 hrs of labor which seems a bit high.

Message me if you want to see my edited installation instructions and pictures.

Cheers, Greg
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Old 05-10-2024, 10:33 AM   #8
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I installed this diverter valve in my 2021 27’ FC and diverted the water back to the fresh water fill hose. Fairly easy if you are handy. No holes drilled in shower. This fits between the shower wall and the closet. It has significantly reduced the amount of water we use in the shower. It allows you to take more time soaping down and washing hair, as previously with our tankless heater we were doing “speed showers”. You will be very happy with whichever solution you choose for recirculating the water!


https://a.co/d/0sETdZG
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Old 05-10-2024, 11:10 AM   #9
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(Edit: @27FT beat me to the punch)
This is on my upgrade list as well. I am leaning towards this solution which uses a valve with a diverter to a tub (in our case the freshwater intake) - no holes required. It's more expensive ($130) but the new mechanism is classier and probably better than the original valve.
Links:
Handle
Valve
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Old 05-10-2024, 11:24 AM   #10
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Quote:
Originally Posted by 27ftToaster View Post
I installed this diverter valve in my 2021 27’ FC and diverted the water back to the fresh water fill hose. Fairly easy if you are handy. No holes drilled in shower. This fits between the shower wall and the closet. It has significantly reduced the amount of water we use in the shower. It allows you to take more time soaping down and washing hair, as previously with our tankless heater we were doing “speed showers”. You will be very happy with whichever solution you choose for recirculating the water!


https://a.co/d/0sETdZG
This looks like both the handle and valve. When I was researching this it appeared it was discontinued and the handle and valve are now separate products which after shopping around are much cheaper. I'll have to confirm the combination I posted is correct.
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Old 05-10-2024, 05:32 PM   #11
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Leave well enough alone
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Old 05-10-2024, 06:44 PM   #12
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See post 49 and 51 for DIY instructions. Works great. Highly recommend.

https://www.airforums.com/forums/f44...ml#post2639946

Took me about four hours to install it. Biggest issue was taking the closet apart on the 27FB. I took my time. Your fresh tank is on the same side as the shower, so it should be fairly easy.
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Old 05-11-2024, 10:14 AM   #13
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Originally Posted by Life is a Highway View Post
Leave well enough alone
Can you clarify this? It's not worth the effort?
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Old 05-15-2024, 09:08 AM   #14
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I installed a "Miser" in our '23 27International along with a pump controller. It works flawlessly! I didn't add the "purple" indicator as you don't need it. I did notice that the hot water (on demand) works better with the pump controller. I'll probably add a solenoid valve to the galley controlled by a 40second timer for instant hot water (without waste or gray tank filling). IMO these should be standard on trailers with on demand hot water systems.
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Old 05-15-2024, 05:24 PM   #15
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So it seems like a pain, but we currently have a low flow shower head and we hold a pitcher under the shower until it heats up, then we either dump the water back in the fersh tank or use it for other purposes. It is an inexpensive fix to the problem and $0 cost
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