"Tote tank" for gray water? Good/Bad?

[helocat]

"Tote tank" for gray water? Our 30 gal Gray water tank fills up quick. With these tanks do you just cart the water over to a basic water dump point and empty it? I am talking State Camp ground water dump points in camp grounds that are not the sewer dump station, type. Like the kind one uses tent camping to dump their kitchen water. Is this kosher? Or do you have to lug them to the full dump point?

The tote seams like a good solution. Anyone have experience with these?

[450Donn]

Generally where we camp there is no dump station. But there are gray water drains located around the camp grounds. I use them to dump. I never use my portable tank for black water so there is no cross contamination issues.