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Old 07-09-2016, 09:21 AM   #1
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Home Made Fresh Water Tank Fill

I know a lot of the higher end motorhomes have the ability to fill the fresh water tank from the city water connection. Mine does not and I have to drag the hose around to the Pax side of the coach to put water into the tank. Seems it would not be that hard to add a fill line and valve from the city water downstream from the filter and hook it up to the fresh water tank.

Has anyone done this with success, doesn't seem it would be that hard.
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Old 07-09-2016, 10:10 AM   #2
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Quote:
Originally Posted by tim myers View Post
I know a lot of the higher end motorhomes have the ability to fill the fresh water tank from the city water connection. Mine does not and I have to drag the hose around to the Pax side of the coach to put water into the tank. Seems it would not be that hard to add a fill line and valve from the city water downstream from the filter and hook it up to the fresh water tank.
Has anyone done this with success, doesn't seem it would be that hard.
tim myers
I find it hard to believe that a your 2015 Fleetwood Storm doesn't already have a hose connector for city water.
Are you sure about that?
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Old 07-09-2016, 10:27 AM   #3
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I have the gravity fill which is the thin flexible hose you stick a garden hose into, (no threaded connection) that is located on the Passenger side, and the city water connection (threaded) on the drivers side.

Hooking up to the city water connection does not fill the fresh water tank, unless there is a valve somewhere I am missing that would feed the filtered water to it.

I will double check the manual again but I don't think this cross connection exists on my coach.

Anyone else with a late model Storm, Terra, or Flair that can help educate me?
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Old 07-09-2016, 10:29 AM   #4
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The manual for your Storm shows only a gravity fill for the tank. They have eliminated some plumbing and a valve by not having a city water fill option. In my opinion, you should be able to add a hose fill by teeing into the line from the tank. I would use one of the RV hose hookups that has a check valve built in to avoid backflow. Only you can judge whether it is doable, but it should work.
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Old 07-09-2016, 10:40 AM   #5
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There is plenty of room for the hose, only real issue would be finding a place to connect to the tank. Possibly the drain line it is PVC. The actual gravity fill is large soft spiral type hose that would not be a gret choice to tee into but I will figure something out.

Would be much nicer to open a valve and fill the tank vs dragging the hose to the other side of the coach.
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Old 07-09-2016, 11:30 AM   #6
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This is exactly what I want to do to my coach also.
As long as you can access the gravity fill hose and the city fill hose it shouldn't be a problem.
I like the check valve option also mentioned above.

I was going to put a 3 way valve in so that I could change from city water to tank fill to tank flush if needed.

Good luck with your project.
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Old 07-09-2016, 01:19 PM   #7
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Only issue is that the gravity fill hose is 1.5" i think and the city water hose is like .5". also dont want water shooting out of the gravity fill opening ont he Pax side of the coach.
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Old 07-09-2016, 03:49 PM   #8
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i used to think fleetwood is a mid-high level coach, now i have to think twice. getting rid of the valve for city water fill does not save much money but clearly this is a cut-corners. really odd...

then another post sometime ago said his coach does not have a gravity fill port but city only... gosh, couldn't believe it .
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Old 07-09-2016, 03:56 PM   #9
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The Storm, Terra and Flairs are by FW's own admission entry level Motorhomes. I am ok with that because the price point worked well for me. I agree this is not a high cost item but if you add up all the low cost items all of a sudden you are at the high dollar coach. that being said i would love to see a plumbing schematic for a coash tht has the fill valve.
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Old 07-09-2016, 04:51 PM   #10
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I would add a hose fitting to the drain pipe. Minimal effort to add the fitting, then just hook up the hose and open the drain valve. Fill to desired level and close the valve.
Just don't hook up to the overflow! Something would pop.
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Old 07-09-2016, 04:57 PM   #11
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Would the water eventually come out of the fill line?
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Old 07-09-2016, 05:17 PM   #12
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Some coaches of that era can fill the fresh water tank through a connection in the discharge line from the tank. Requires a tee and a valve installed in the line pressurized after the pump by the city water connection. Open the valve, backfill the tank.
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Old 07-10-2016, 06:26 AM   #13
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I would say the water would come out of the over fill line. If the water was filling from the drain pipe, the tank will fill from the bottom up. The outside hose fill would act as a another vent line. You got me thinking of another mod.
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Old 07-10-2016, 07:07 AM   #14
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Well lets stay in touch and we will figure this out together. I am usually slow at these things. Seems my projects turn out better if I ponder them for awhile.

I will give it a good looking at today. I am in Wapokoneta, OH and need water. Really hate the idea of adding another length of water hose to reach the other side to fill the tank.

I am also headed to FW to get some bad windows replaced, I might ask them their opinion and maybe I can pick up a plumbing diagram. If not I will sketch my own before cutting.

Concept is simple enough, access not so much.
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