Originally Posted by garbonz
If there is a space where the tank goes that isn't there, find out what size and put one in. You can pick up surplus tanks and hardware ALL over the place.
AND maybe suggest that palomino bankroll the additional tank. In the meantime shift some of your grey water to your black tank (many do that with the dishwater in a tub, the prewarming shower water etc.)
All good suggestions! Not sure how you can lift a 30 gallon portable tank
into a truck when it's full or nearly full. I know I couldn't!!
FWIW, I have been known to leave my sewer cap ON and then pull both
gray and black tank dump valves. I only do this on rare occasions and only
when the gray tank is nearly full. This allows the gray water to seek it's own
level with the black tank and since the black tank is nearly empty, the
gray water runs to the black tank.
Problem is this leaves waste water in the short pipe between the dump
valves and the cap. Later, when I remove the cap there is about a gallon of
spillage. In our case we only pee in the toilet so it's not as bad as could
be if folks use the toilet for the heavy stuff. What's trapped is mostly
gray water since that tank that was full when the valves were
pulled. I also make sure to pull the gray valve 1st. This isn't ideal but it's another option.