Instruct: Classify the given Amazon review as either positive or negative.
Query: It kept me from having the septic pumped

The septic system is pretty old. It started to back up in the drain for the washer. I used Rid-X and the enzymes did the job. The back-up went away, dissolved I guess. The smell also went away. Hurrah. The Rid-X goes in the toilet, not in the pipes, so it is very easy and neat.