Nit. To sure how. The gray water. And. All works. Say. I. Went camping. For about a month. How often. Would i. Have to get frresh water and empty. The toilet/gray water??

Depends how many showers you take, how often you do dishes, how big your holding tanks are and how big your fresh water tank is. I have a 30 gal black tank which I can stretch 3.5 weeks but it's just me and I never TP down it. I put TP in trash can.

Thank you carol It. Will. Just. Be. Me Just trying to get a ruff esimate do you use propane. For your fridge an cooking facilties