I would think the draining of the bladder would be slow.
I found a small tank used to drain oil in that fits in my back wheel well, I run a 90 degree hose adapter out the bottom of the camper overhang then run a short hose to the tank. I wedge it upright in place with extra blocking (it will stay put when we are stopped without wedging). I think it holds about 4 gallons. I pull it out every day or so and if I have to carry it somewhere to dump, no problem it has a cap and a handle. If we are real careful we can make it last 4 days but 2 is normal.
