I drained my fresh water tank at the drain in the compartment by opening the valve on the tank where the water pump is. I also drained my water heater and turned the by-pass. I used a compressor to blow out the lines (turn on the fridge and ice maker- hopefully the ice maker will cycle and it will clear the line to it). Close the line to the ice maker (in the cabinet under the bathroom sink) and pump the pink antifreeze through the system -there is a short hose for this in the compartment where the water tank is located. Dump about a cup or 2 of the pink antifreeze into each drain.
Tom and Margaret
2014 Berkshire 390bh-60