We are new to RVing and we tried so many products that DIDN’T work! I refused to buy new stuff before I had used up what we had (i.e. Camco), but the fishy/eggy smells that would remain in our black tank made me want to puke. Switching to liquified was seriously the best decision ever! The liquid works perfectly, we never get a smell EVER, and because it’s liquid you can use a precise amount. I am so impressed with this product and I will never buy anything else. I am so excited to try the rest of the line of products — because if they’re half as good as this, I’ll be so happy. Thank you to Matt and his team for creating something that WORKS and is reasonably priced.