As desert deals69 said, You can also use regular household chlorine bleach. Run the treated water through your system and when you smell chlorine at the faucet turn it off .
I have the Crossfire and a single TPMS mounted on the crossfire indicator .. Works for me . A visual check at the fuel stops and an alarm when moving .
TPMS on toad also. If I need to add air to coach it sure makes it easy
Seems like the big foot system is good . saves having the hydraulic lines through the basement .. At least on a retrofit..
I have some interest because the present Power Gear Electric will probably get to me someday.
A total replacement might just be the best in the long run
A " quick and dirty" fix , is to put a sandwich bag over the plastic vent and rubber band it in place. Just for testing purposes to see if smell goes away.