Two weeks until we head south to Okefenokee Swamp for a week with the GS. It's been over 15 years since we last went there with our kids, and am really looking forward to it. This will be our first "long" trip, as we have camped in our nearby state park the last 2 times. Can't wait to get loaded up and off! Since we bought the TT last year, our GS has been begging to take a bath in it. I guess we'll finally give in and let him this trip. Since our gray tank only holds 30 gallons, we're real careful, and usually do all our showering in the camp bath house. Our black tank is relatively small too, 11 gallons. I really miss the "green to red" indicator we had in our old pop up! I imagine we'll keep an eye on it too since our 6 yr old GS loves to use the toilet and watch it flush

hi there. 30 gallons is a lot more then you think. You can pretty much take a normal shower and your not gonna fill it up on the first time. The 11 gallons for black is quite a bit also. You wont fill it up over a weekend with normal use. Now, if your grandson flushes it everytime he walks by, that might be a different story. but you will be fine with regular use.