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Old 06-13-2015, 08:22 AM   #11
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The water tank is semi-ridged. The bottom is supported by the floor, but the top has no support except for the edges. So when you fill it, the water fills its full volume with the top bulged - sort of like a balloon. After the water fills the maximum volume, it starts up the overflow hose and if it gets to the top of the overflow hose loop, it will siphon your tank to about 80% full -thus loosing all that precious water you put in.
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Old 06-13-2015, 11:35 AM   #12
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The water tank is semi-ridged. The bottom is supported by the floor, but the top has no support except for the edges. So when you fill it, the water fills its full volume with the top bulged - sort of like a balloon. After the water fills the maximum volume, it starts up the overflow hose and if it gets to the top of the overflow hose loop, it will siphon your tank to about 80% full -thus loosing all that precious water you put in.

I keep reading similar posts another bad design? With parts of the U.S. with a water shortage why in the world would FR design such a system to dump on the ground 20% of a precious commodity to many? Or better yet why don't they fix it?
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Old 06-13-2015, 06:03 PM   #13
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I keep reading similar posts another bad design? With parts of the U.S. with a water shortage why in the world would FR design such a system to dump on the ground 20% of a precious commodity to many? Or better yet why don't they fix it?

I've had mine for three years and yes the tank bulges but we have not had the syphon issue. It's not a huge issue. The only time I have had any issues with the water tank was when I forget I was filling the tank and it got pretty full. Oops
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Old 06-13-2015, 06:40 PM   #14
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I didn't have a siphon issue either.
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Old 06-13-2015, 08:28 PM   #15
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No siphon issue here either.
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Old 06-13-2015, 09:42 PM   #16
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Me either
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Old 06-14-2015, 08:06 AM   #17
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Unless FR redesigned the water tank over-flow from what my 2012 has, the siphon issue only occurs if the tank is filled to the top (where it bulges) and beyond to the point where water is coming out of the over-flow.

At least on my MH, once the water comes out of the overflow, it continues to siphon the tank down to the over-flow fitting on the side of the tank.

Therefore, if you never filled the tank to have it over-flow, then of course you didn't have an over-flow issue.
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Old 06-14-2015, 08:59 AM   #18
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I'll try to get mine to siphon once I get home and report the results.
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Old 06-14-2015, 09:33 AM   #19
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I'll try to get mine to siphon once I get home and report the results.
Appreciate that, it may prove my sanity or insanity. I used the over-flow method of filling the tank once, since I hate crawling on the ground for the water compartment latches, having to prop up the door and then crawling on the ground to insert the latches. So I merely filled until water started to come out underneath and then new it was filled. But then a surprise, the water kept coming out even after shutting off the supply.
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Old 06-15-2015, 10:15 AM   #20
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On mine when new it would overflow. I just raised the overflow tube to the top of the compartment. I then drilled a couple 3/8 holes in the compartment floor. Thus giving me those holes plus the one the overflow tube came out of for any water that might get in there a place to get out. I can Click image for larger version

Name:	ImageUploadedByForest River Forums1434377738.681939.jpg
Views:	67
Size:	133.2 KB
ID:	79986fill tank 100% no syphoning.

I don't understand why FR put that crazy door on the water compartment with silly latches on the underside??

I cut a 6" round hole in the compartment wall in front of the water tank. The hole has a screw in plug if one would want to use it. I just open the compartment door in front of water tank and watch the tank fill. Thus never overfilling. I ll attach a picture. Picture will show water tank on other side of wall. Tank has maybe 2" of water in it.

Russell
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