There were a number of passionate 1 star reviews of this product, but I fail to see the drama. It should be noted we reserve our RV toilet for number 1 only. After we dump and rinse the RV tanks I pour 1-2 ounces in our toilet and chase with a brief flush of water (gray and black tanks 25 gallons each). We do not have a foul odor and I feel it works well. When I open the RV door for our next trip it smells fresh.
Rating:
[5 of 5 Stars!]