Fresh Water Tank Capacity 297RSTS 2021

[PineconeNW]

https://jazzsales.com/product/water-...on-model-1438/

[PineconeNW]

Response from GD which indicate the water heater 6 gallons should be added not subtracted.

[Country Campers]

Also the 54 gallons includes the water heater, this will not change in the brochure or website probably for a while since they are using a tankless water heater. So 54 - 6= 48, pretty close to what you are getting, I generally get about 45 to 47 gallons in our fresh tank, same size.

Brian

[JBill9694]

The good news is that if you add chlorine to sanitize 54 gallons it won't do any harm. Same with figuring the weight of water for travel at 54 gallons, just introduces a margin of safety.

The water tank may very well be 54 gallons when completely full. The chances of the tank every being completely full are slim and then probably not for long. The overflow tube is connected to the side of the tank with a collar about it so that the invert of the overflow is actually an inch or more below the top of the tank. If water can be added faster than it can flow out the overflow the tank can be filled to capacity. But as soon as the inflow stops the tank will drain to the invert of the overflow (or lower if the dreaded siphoning effect starts, but that is a different subject).

I sanitize my tanks based on their listed capacity and have not had any problems in three winters. FWIW, I do a second sanitizing with white vinegar (use twice the amount as used for the chlorine) to reduce the chlorine taste in the water.

[PineconeNW]

The real issue is I cannot properly calculate how much chlorine to use until I know the true tank capacity.

Dumped the fresh water yesterday, empty tank.

We have one of these and it indicates 45 gallons to fill.
https://www.amazon.com/Orbit-56854-H...49413728&psc=1

This web site says it should be 54 gallons.
https://www.granddesignrv.com/showro...rplans/297rsts

I studied the user manual and cannot find any tank sizes in it.

Is the meter I bought a piece of crap?
Is my tank not emptying completely?
Is it really 45 gallons?