I used this when we first got our camper because unknown to us...the previous owners left the tank full of poo over the winter!!! EEEWWWWW!! It worked like a charm, cleaned the sensors and no odor or left overs.
since that happy escapade and knowing how well the extreme version worked, we started using this version of Happy Camper and our sensors work beautifully and are very happy with how it cleans. No smells, EVER.
2014 Rockwood Roo 23IKSS
2012 Dodge Ram 1500 Hemi 4X4
Me, Hubby and Luna the Lab