Sent the following in a PM -
Since your unit is a different model than mine, don't quite know how close they compare. My cover over the fresh water tank is under the dinette closest to the passenger. My plywood is not screwed down, merely lays in place and has a finger hole to pick it up with. Between the frosty looking rectangular tank and the wall is mounted the pump and the inlet/outlet white tubing. There is also a tank drain that penetrates the floor that you must unscrew the shutoff valve to drain the tank. I used a leaf blower and blew air into the tank to accelerate the draining and get the last bit of water out. I believe the kit they talk about, you cut the tubing from the tank to the pump and install a "T" fitting with a directional valve. I merely loosened the clamp on the tubing that connects to the fitting on the tank, then unscrewed the fitting from the tank. This is the suction of the pump - stuck that into the pink jug and turned on the pump. Then I turned on each faucet until solid pink flowed (including the flush toilet). Then I reconnected - not much of a problem once a year. Hope someone else writes to give you another procedure.