Originally Posted by ranger42c
Ours was a "Traveler" thing, only 9 gallons I thought. Something like that. Believe it'd be easier to install a PuraSan or similar -- if that'd be useful/legal where you boat -- instead of installing a larger holding tank.
Can't off-hand remember rules for treated waste on inland rivers, though...
Treatment is legal on at least 90% of the interstate navigable waterway system (rivers)--including the "lakes" created by dams except for a few that have been designated "municipal reservoirs." Pumpouts--also fuel docks--are few and far between in some places, especially in the south where there are long stretches between towns.
So I second the recommendation to ADD a PuraSan Raritan PuraSan Promo Sheet
instead of replacing the tank with larger one. He does to keep a tank in case he lands in a marina that's taken the well meaning, but misguided position that holding waste while in it is "doing the right thing" or decides to do the Loop. 12-13 gallons would be a good size to have just in case he ever has to use it for a day or two somewhere.
Btw...that SeaLand "Traveler'" needs so little flush water--it actually can use only a pint 'cuz it only needs enough to rinse the bowl--that its 9 gallon tank holds as many flushes as a 25-30 gallon tank fed by any manual or macerating toilet. It's a really NICE self contained system...a glorified portapotty really...that has a real china bowl (same as the VacuFlush) and uses onboard pressurized fresh water. I've always liked it.