Thanks Gene. I am emboldened now to go ahead and risk a ring pull. I have also wanted to drain tanks in the hot summers when several weeks go by w/o using the RV to forestall any serious bacteria buildup, so this will be of double help.
Rodger, I too am sorry for the divergence. With so many people only conversant on the weather, we B+ owners who use this forum should feel pretty good about having so much more to discuss!
Anyone have thoughts on getting the Good Sam's extended warranty called CSP which covers appliances and chassis drivetrain in tandem with and then beyond the manufacturers' warranty?