OurNewEra
Senior Member
They count the amount that is held in the water heatee tank as part of the total fresh water capacity.
Really??? That doesn’t sound right. Heater still is only 6 gallons
2021 Imagine 2400 BH
2018 GMC Sierra 4x4 crew
The tank might be 60gal but it all depends how deep they inserted that overflow tube. There's a few mods that members have done to reduce water loss by installing a valve at HD end. If you do a search on here you should find along with some photos. I also read somewhere that the total capacity might include the hw tank. However I'm not sure how accurate that is.
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I know on my 315rlts they say 60 gal capacity, but the tank is only 54. They include the hwh tank
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huntindog
Senior Member
- Joined
- Nov 27, 2017
- Messages
- 2,398
Sadly, this is the industry standard. It is B.S, as that water is not usable. But all manufacturers state it that way in the specs.
If I had a trailer with the new Furrion tankless heater for fun I would be holding GD to the fire on their specs. I am sure they are still using the same fresh capacity figure
Maybe if people did this they would more accurately post capacities
I never boondock but I assume 6 gallons could be an extra day or so of water
2021 Imagine 2400 BH
2018 GMC Sierra 4x4 crew
Last edited:
They would just tell you that there are 6 gallons of water in the water lines at any given time. (unless they are empty or blown out, of course)
The overflow tube is not inserted into the tank. It is welded to the side at the top. As the overflow pipe is 3/4" you start to see water when the tank still has one inch to fill. That one inch over the area of the tank can add up to a lot of water. I fill until I get a good solid overflow. However when filling , when I see overflow, I cut back on the fill rate to not pressurize the tank. I also use a flow meter. I stop filling, wait a minute then close off the overflow valve. I have built in a vent system so not to get water loss while traveling. I posted here on what I did.
OurNewEra
Senior Member
One other plausible reason is that you have a 45 gallon tank and not a 60 gallon. When we picked up our trailer in the user manual there was a single sheet of paper that, amount other things had the tank capacities listed. ON there was the freshwater, grey water, and black tank capacities. If you haven't already run across that sheet see if you can find it in the delivery pouch full of literature.
Given the current supply chain challenges it would not surprise me if they did not have 60 gallon tanks available and installed a 45 gallon tank. This would be the curse of the 'asterisk'. *Specs may change.
You didn't say how you were verifying the amount of water going into the tank. I would check the accuracy of the instrument you are using to measure how much water you are putting into the tank.
If you use the advance search feature, enter water loss and my user name it cones up. But to save you time https://www.mygrandrv.com/forum/sho...ter-loss-while-traveling?highlight=water+loss
Also consider setting up a signature block with your trailer and tow vehicle information. That way others with your model rig can chime in to help.
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