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 > Dry as a bone,…again

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Coelacanth

Syracuse, NY

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Posted: 05/27/21 06:50am Link  |  Quote  |  Print  |  Notify Moderator

Yes

bukhrn

Lanexa, Va

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Posted: 05/27/21 09:07am Link  |  Quote  |  Print  |  Notify Moderator

You say water spurted back out, a sign your overflow tube is plugged or kinked, mine was once plugged by mud daubers, next, as someone mentioned, try filling slower.


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DarkSkySeeker

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Posted: 05/27/21 09:49am Link  |  Quote  |  Print  |  Notify Moderator

bukhrn wrote:

...do you leave the water running while doing dishes or washing your hands? Are you sure the outside shower is turned on slightly.

Good points. I say so since both of these issues bit me. I had to tell a guest in my RV not to turn on the sink, continue on with her conversation, reach for the soapy dish, rinse it, place it in the drying rack, continue talking, grab another dish. Seemed obvious to me. I also accidentally left my outdoor shower dripping. It is amazing how quickly a slow drip consumes storage capacity.


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Coelacanth

Syracuse, NY

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Posted: 05/27/21 09:51am Link  |  Quote  |  Print  |  Notify Moderator

The overflow was plugged the first fill. No more.

craz z

Montana

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Posted: 05/27/21 11:15am Link  |  Quote  |  Print  |  Notify Moderator

Here is a thought.

So you fill up the tank and drive ever notice wet spots where the overflow is? I had a tank that would ALWAYS lose 1/3 from sloshing around from driving. get to your spot and your automatically 1/3 down.

Try checking your gauge at certain intervals and especially from the time you fill to the time you get to your spot. if its down you have your answer.

several other things can contribute keep your pump off unless using if you hear it run up every once in a while. You have a leak or drain on the system.

The solution I came up with was a pen cap and a one way valve like what is found on a dirtbike gas cap.

Air can come in but no water can escape. When filling water you simply remove the cap. THIS COMPLETELY stopped the 1/3 drain from the overflow as they are nearly level and the sloshing will let it run out the overflow losing not just a little but 1/3 before you start using water.

I've moved on to a new to me rv that has the same problem as i think ALL of them do this. The overflow says your full when water pours out but it doesn't magically stop coming out when your going up hills and sloshing around

Filling slow is not necessary once it shoots water out the overflow you know its full but only temporary until you come up with a solution to stop the over flow from siphoning off 1/3 of your tank.

a 30 gallon tank should EASILY last a weekend and longer being somewhat conservative a single person can be wasteful with water and a shower and still go 3-4 days

Overflow draining your tank is the answer you can't see it happening but it is when your driving.

air needs to push out filling with water and air needs to come in using the tank nothing is stopping the water from running out the overflow tube or better yet the air inlet/outlet tube. its necessary to have this or the tank will rupture from suck or blow.

The only way to fix this is get the overflow significantly higher then the tank as most are level or even lower then the top of the tank or put in a one way valve that is removable only allowing air to come in when using the tank but also can be removed when filling the tank with water.

On my old rv the back where the water hatch was was ALWAYS wet then I finally figured out what was going on. On my new rv it has 3 overflows and i can literally see spray or mist when it rolls yaws or wind hits the rig in the mirrors. I just got it an this is on my list to fix right now!

* This post was last edited 05/27/21 11:54am by craz z *   View edit history

VA-Apraisr

glen allen, VA

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Posted: 05/27/21 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

I was losing ALOT of water flowing out the vent tube and filler pipe while traveling; especially doing a sharp turn at speed and could watch it spilling out the side (some folks thought I was losing gas). To fix this, I put a turn-off valve in the line for the vent tube (used a on/off valve for lawn mower gas line). Also, I shove a piece of old towel into the filler pipe and cap the filler tube while traveling. I used to lose 1/2 my 40 gallons of water during a trip and now, not one drop! I've spent 7 days on the beach dry camping and still had water. Traveling uses a lot of wasted water right out the side of the RV.

* This post was edited 05/28/21 06:31am by VA-Apraisr *

johnwalkerpa1

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Posted: 05/27/21 08:30pm Link  |  Quote  |  Print  |  Notify Moderator

Lots of good suggestions on things to check and ways to reduce water usage. But, in the end, the fact is that 29 gallons is not a lot of water.

pnichols

The Other California

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Posted: 05/28/21 12:34am Link  |  Quote  |  Print  |  Notify Moderator

wildtoad wrote:

Have you checked the water level when you first arrive at your camping spot? We don’t have a TT but I’d fill the tank in our mh at home and depending on the length of the trip determined how much water was in the tank upon arrival. Seems due to a poor design a good bit of water will exit the tank via the overflow tube.


I'm not quite sure our Class C's fresh water tank has an overflow tube. The fresh water tank has a filler cap that fits tight when we close it. No water can spill out anywhere that I can tell. [emoticon]


Phil, 2005 E450 Itasca Spirit 24V

NRALIFR

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Posted: 05/28/21 04:24am Link  |  Quote  |  Print  |  Notify Moderator

Another thing to check for is whether the tank is really empty when the water pump starts sucking air. Maybe there’s a problem with the pickup tube.

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Coelacanth

Syracuse, NY

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Posted: 05/28/21 04:29am Link  |  Quote  |  Print  |  Notify Moderator

No, like I said, I can eyeball the tank.
She be dry, fer shur.

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