I guess it's doing its job. The best part is you get 12. I'd always forget to pick up septic drop-ins from the store, but with this I don't have to worry. I have a drop-in for each month, which makes it easy to keep the septic maintenance on schedule. Plus, it's eco-friendly.Price: Good - with the Subscribe and Save optionEasy of Use: Super easyValue: Great
Rating: [5 of 5 Stars!]