[cw1001!]

I went camping this last weekend and my Grey Water Tank filled up faster than I thought it would. This is a new camper to me and I know it has been well used in the past.

When I got home I decided to "measure" how many gallons my tank was by dumping a measured amount of water in the tank. I measured a gallon of water and started filling he tank. I got to 22 gallons and notice it the sink draining slow. Got to 23 and that's all she wrote. My tank specs are supposed to b 28 gallons.

So the question of the day is, do y'all think it is possible that there is that much grease in the bottom of the tank taking up the extra room?