How many of you are using anything other than "RV" toilet paper. I'm sick of paying $5.00 for the RV stuff that has lousy tear strength and fall apart in your hands. I think we're being ripped off.
We use Charmin two ply and it works great. If your black tank with a four inch dump valve can not dump any kind of toilet paper you use, there is something wrong with your plumbing on your coach. OR some of you are not using plenty of flush water. Use at least a gallon of water every flush.
I also use Happy Camper which breaks up all solids and tissue. So when I dump it is mostly water.