Thanks Jim and Ken,
I use a brass "Y" adapter with shutoffs also, but I put the "Y" adapter right at my city water hookup in the docking station, then I use a 4' hose to connect to the Sani-T-Flush connector. I only have one of the valves open at any one time as needed. You're right Ken, I will need to educate the family on my design and teach them when and why of how to use it. Anyway, I have been wanting to touch on this subject for awhile now but have been apprehensive about doing so. I felt as if I may have been doing a poor job using my Sani-T-Flush system with regards to the city water.
Thanks again for the input,
Mark