A big part of your dewinterizing is the cleaning out of your water system. You need to put water in your FW tank, then pump out the pink antifreeze if you put it in last fall, and then sanitize the system. I use 1 cup of bleach for a 35 gal tank, poured into the gravity fill neck, then fill the tank. Let sit for at least 4 hours, then thoroughly flush the entire system. Drain tank, then flush again, and that should do it. Don't forget any extra items, such as outside shower head if you have one.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.