Well I just got leason in winterizing my TT really fast...
I was in the process if inspection on my and doing maintenence and found the sewer cap was dripping so I open it and found there was water left behind in the tanks.

So I dumpped the left over water out and notice a chunk of ice in the sewer line... Just leave the cap off and the valves open...
So I went inside and tapped the water pump switch and found the water pump frozen...
But you can clearing see the pink stuff in all the lines..

Loosing faith in the pink stuff I figures out a way to blow all the lines out without buying/building a city line adapter. I got a water heater bypass so I open the low point drains and using regulated air pressure 40-50 PSI I would blow in one drain and the pink stuff and ice would blow out the other line. Then one at time open a faucet one at time blow again. So far no problem system is all empty now...
So at his point I'm going back to the dry system thought and using the pink stuff for drain traps..