Grey Water Holding Tank

[pga]

I just bought a 15 gal. grey water tank, the slim design made to fit under popups.  Has anyone rigged a way to store it on or below a popup while traveling?  Any input would be nice.

Thanks in advanced!!!

[PattieAM]

Sorry, I generally travel with it either stored in the camper, or tossed on the bed of my pickup truck.  I rinse it with bleach water after it's been used, so I don't feel it's 'yucky'.