FW tank

[jtroop]

I just brought my new rig home today. When I left the dealer, the sensor read 1/2 tank. When I got home, I decided to sanitize the system. I started to add water with the hose, went inside to monitor the level and it read full. Not sure what is going on here. I turned the water off, added a cup of bleach, drove it a few miles, and came back home. It now reads 1/2 again. Anyone know what the problem is? There is no way to visually look at the tank. It is in an enclosed basement.

[GaryKD]

Hi jtroop,
Congrats on the new coach. If it were me, I'd drain the fresh water tank and let it sit empty overnight. In the morning, check the monitor and be sure it reads empty. If it reads anything other than empty, read in your owner's documents on how to adjust the monitor panel. There is usually a procedure for this the owner can perform.

When it reads empty, restart the sanitizing process. Make sure you full the fresh water tank and the monitor says full.

[PlayItForwrd]

Our tank is also "enclosed" in the basement. 4 screws later, it's no longer enclosed-- the one "wall" is just a flat panel that's easily removed. Yours might be the same way?

While ours looks better with the wall up, I like being able to see exactly how much water is in the tank. I'm thinking about cutting a tall, narrow 'window' in the wall, then it'll look purty AND I can tell how much water I got!

[jtroop]

I'll drain it tonight and let you know how it goes.

[Gary RVRoamer]

It isnot unusual for that type of sensor to read incorrectly, even in the fresh tank. Water clings to the electrode that protrudes into the tank and completes the electrical circuit it operates on and the gauge reads accordingly. Letting it dry a bit might get you back to a accurate reading, but it will change agin when it sloshes around.

You might consider changing to See-level gauges, which sensors are mounted externally.
SeeLeveL RV Gauges by Garnet Technologies Inc.

[jtroop]

I drained it and filled it back up with water. At least the sensor read full. What I need to do is figure out how long it takes to fill 60 gallons at the normal residential city water flow rate. I'll fill a five gallon bucket later, take that time and multiply that sum by twelve and should have the time.

[Vegasdan]

Quote:

Originally Posted by jtroop I drained it and filled it back up with water. At least the sensor read full. What I need to do is figure out how long it takes to fill 60 gallons at the normal residential city water flow rate. I'll fill a five gallon bucket later, take that time and multiply that sum by twelve and should have the time.

Or just fill it until water runs out of the overflow.

[jtroop]

Doing the formula, it is reading correctly. The problem with going by the overflow was as it gets 3/4 full, the water starts to backflow up the fill tube. But, at least now I know the gauge is accurate.

Anyone have this backflow problem?