Any tricks regarding using fresh-water tank?

The tank is vented; the vent is in the same fixture you use to pour water into the tank (assuming the techs at FR connected all of the pipes properly - be cautious the first couple of times...) so it's extremely unlikely that you'll explode anything.

I tend to turn the pump off if I'm going away for more than an hour. I'd hate for a leak to suddenly develop and the pump dutifully empty the tank wherever (I'd also turn off the hydrant if I was connected to a water supply). But no harm in leaving it turned on while you're there. The pump might run a second or two in the night (but more pumping suggests a leak...).

Not a bad idea to sanitize with bleach ahead of first use, and whenever the water system hasn't been used in a few weeks. Bypass the water heater first. Dilute 1/2 to 3/4 cup household bleach in a gallon of water, pour into the fresh water fill, then fill the tank completely with water and run hot and cold taps for a couple of minutes to circulate the water thru the lines. Let sit for 12-24 hours then drain the water system and refill the lines with fresh water and the tank with however much you travel with - I generally add 10 gallons for the road. A little more if I'm boondocking.

Become familiar with the location of the water pump and the associated inlet strainer. It needs to be cleaned out periodically (once a year, maybe).

If you run the pump don't forget it when winterizing. I use antifreeze so it's less critical to get all of the water out of the pump.

Having experienced algae growth in the fresh water tank more than once, I am strongly in favor of sanitizing the tank at the beginning of the season and, if needed, repeating. Chlorine may not taste good, but a pitcher filter for drinking water will fix that while ensuring that you have safe water. I do agree about turning the pump off while traveling, even though I have not turned it of and have not experienced  problems with the RPod. We have not traveled yet with the Grey Wolf, so I can't say the same for it yet.

Our well water has relatively high levels of dissolved solids, so we treat it with a bit of vinegar and run it through the pipes to dissolve that. 

Originally posted by john in idaho I still think the best water tank story is one where the owner put Dawn detergent in one of the waste tanks. .... when they were stopped by a foam covered CHP patrol vehicle on I-5.