I don't think chemicsls tske the stink out- at least not completely.
The chemical does cover or lessen or make it more bearable.
No matter how much chemical is in it you still have that gas station bathroom smell.
I believe the purpose of tank chemicals is to break down solids and toilet paper.
I put a capful in my slinky to cut down on the stink. It helps.
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
WBCCI #1811, Region 6, Unit 56