Access to the valves was the biggest issue, not so easy for you to section your stainless panel for better access. On the Drainmaster website, there is a photo of the new valves mounted in front of the wet bay back panel. They just extended the tank drain in front of the panel, then tied both drains together with a 'wye' right above the sewer hose connection. Well, a picture is worth a thousand words.....Anyway, that fix would not work for me, as the maniblock valves are in the way of the black tank drain. One could relocate the maniblock valves, oh well, here we go.
The new style valves do seem to work better, and the new switch design lets you add as many dump valve switches as you like, so you can operate the valves from inside the coach, if you wish. THe switches act as a low side switch, just like your water pump has several switches you can use to turn on the water pump. I'm not willing to put in a remote switch, as doing so without being sure the sewer hose is connected and tight is not a sight I want to envision!