Oh the pungent smells of summer heat and black and grey water RV tanks! Being a person who very cautious of society and the over glamourizing of consumerism and false advertising, I first attempted to try numerous DIY recipes to solve our stinky issue. To no avail! When they didn't work, we even purchased a few other different tank deodorizing products. Unfortunately they did not work either and no amount of money spent on different kinds of air fresheners or incense could hide the less than inviting smells of our camper. After doing some research, I kept reading on different RV sites, how "Happy Camper" was the all, to solve the smelly problems we had been struggling with our new to us RV. I decided it was time to give it a try, I jumped on 鶹 and ordered the smallest container I could find. so I could see what all the hype was about before committing to putting out what I considered alot of money to buy the larger size- just in case it wasn't what everyone was raving about. Two days later it was delivered to our home ...I couldn't wait to try it. The heavens opened up and the angels began to sing lol .....O-M-G!!!!...I cannot say this enough-.This stuff is truly AMAZING!!! My only advice - skip the small container and get the larger size to save money. I am honestly in awee with how well and fast it works. It's only a tiny scoop that solved the smelly issue almost immediately. Works for days in the hot, humid summer heat.....100% RECOMMEND IT!!! Save yourself the money and frustration of trying different options that don't work and go straight to the one that does!!!! "Happy Camper" is everything they say it is!!!