Quote:
Originally Posted by Canonman
That would mean you have pink in your fresh tank.
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Not necessarily.
Turn the valve to "Winterize".
That will allow the pump to suck up solution from the antifreeze bottle, and push it through the water lines. It WON'T go into the fresh water tank as long as the check valves are working properly.
Winterize vale to "on", One end of hose connected to winterize port and other end of hose into antifreeze jug.
With all other water faucet valves closed (including outside shower valve), turn pump on.
It will suck up antifreeze and build pressure until pump stops.
Now you just go around and open up each faucet one at a time until it flows pink.
You can connect the outlet of your outside shower hose to the black tank flush and open the shower valve to push antifreeze through that system also.
No antifreeze goes into the fresh water tank.
Note:
The air fitting you mention will work as well.
Just be aware that you could still have some water left in pipe bends.
This happens because as the air is pushing water through, it will not get 100% of the water out. It always leaves a little water.