We plan to camp at Fort Pickens in Florida and there is no full hook ups. The holding tank is like 20 gallons for black and gray, so total of 40 gallons. Its too small for a family of five to camp thr...
Yes, you're right, the grey fills up first. One of the things we do is to do dishes in a dish pan that fits in the sink. Then pour the dish water into toilet. The extra water and soaps probably helps it to empty better.