GordonThree,
Don't even need a dump station! Take your RV toilet out by just removing the 2 nuts on the base and plug the water supply line. Plug is available at about any hardware store. Takes about 10 minutes tops to do. Make a base from plywood etc large enough for a tall (5 gal) porti potti and hold it down with those same original washer and nuts. Fill the rinse reservoir with auto windshield washer fluid as it is good to -25 or -35 F anti-freeze protection. You have not changed your RV at all for resale value at all and can simply put the OEM toilet back in.
The porti Potti can be dumped into any toilet anywhere and there's no smell if you use a decent chemical which also breaks down the solids too. You live in Michigan like we do and you are also allowed to did a hole 8" deep min on rural state forest land a min of 300' from any CG site etc and dump it and then recover with the soil and make it looking natural. (see MI DNR Rules).
No worries even if you should forget to dump it when you get back home as the rinse windshield wash fluid prevents freezing in both the holding area and the rinse tank. No mess and no smell and never spill a drop and so cheap to do! Often have dumped ours in a gas station toilet and never have been refused.
Not knowing how your toilet sets in your RV, there are options to prevent tipping in panic stops fears for consideration and peace of mind if it sits on a rearward facing wall side. Just put a good screw eye in the plywood etc base behind the toilet and string something like a strap or 2 sided Velcro thru the screw eye and the porti potti's rear carrying handle and it can't tip over. The base is screwed to the floor! I simply put a border of 1 X 2 pine screwed down around my base and it's never tipped over in any of our RV's and have been using them since the late 1960's. I used to use Velcro strap but haven't in years now. My porti potti bases are all sanded smooth and painted to match the floor colors and you don't even notice them. Look like they are OEM! Where there's a will, there's a way!
Northern climate frozen winter in any style RV camping toilet situation and dumping issues solved for good! Perfection plus! Like it so well that we even keep it the same way in the summer months too and just change the rinse liquid to plain ole H2O. Now we have 2 gray water holding tanks (double capacity) by simply adding a twist on off the shelf gate valve on the dump pipe outlet and opening both internal black and gray gate valves. Then moving the outside sewer cap to the new added gate valve. What could be easier, more convenient, smart?
A superb CC LB 4X4, GM HD Diesel, airbags, Rancho's, lots more
Lance Legend TC 11' 4", loaded including 3400 PP generator and my deluxe 2' X 7' rear porch
29 ft Carriage Carri-lite 5'er - a specially built gem
A like new '07 Sunline Solaris 26' TT
