Look what people have to say about Roto-Rooter’s performance:

"Roto Rooter Septic System Treatment, 8 doses, does the job at a fraction of the cost. I was using the high priced brand at $6.00 a month. Roto Rooter® does the same job at $1.50 a month. I'm very pleased with it."
- Cheapshopper309 

"I've found this product works best if you use it once a month to keep your drains clear. I think you need something a little stronger if the drain is already clogged. It can be used in toilets which is a bonus since most drain cleaners can't. It also smells great!" 
- Elizabeth

"When we first bought our home we had a clogged bathtub. We tried all kinds of clog removers but none did the job. Then we finally tried this one from Roto-Rooter® and we've never looked back. This unclogs anything the first time. We've been using this for 8 years." 
- Bluna