So here I am de-winterizing 'Baxter'. Since I'm a broader line expert. (Expert meaning one who has made all the mistakes). I look under the sink to make sure water pump fittings are all connected. I pull out the bottom drawer and leave it out till spring for just this check. I go outside to make sure the fresh water tank handle is turned from open to closed. Then I proceed to fill the fresh water tanks so I can proceed to the next step in the dewinter process. After about oh three minutes of fresh water going into the tank I hear the beeping of the water alarm next to the water pump. If I wasn't a fan of this little gadget before and I am now a super fan. So I grab my flashlight and low and behold water is all over the floor inside the water pump area.
Well to make a long story short -- during the winterizing process when I put the strainer back I misaligned the rubber seal. I have added a new step in the checklist of winterizing and de-winterizing ie check to make sure strainer seal is in proper alignment. I also plan to buy a few as backup.