Hi SVS
This is an enzyme cleaner, they really do work great. The company I used to work for (similar to Mr. Rooter) also sold this. To save ALOT of money just got to the hardware store or even Walmart and grab a bottle for approx $8-10 and it will last about 6-8 months for a two bathroom household. What is does is it keeps the edges of the pipes slippery, i.e. its a good bacteria that eats the bad bacteria, just put some in each household drain that has a trap once a month and leave overnight, then flush the next day. If the pets drink it, its okay as they'll just get a sore tummy for a day.
The key is to have your drains cleaned first and use this stuff to "Maintain the drains". The trick is getting the tenants to do this, lol. I provide the enzyme cleaner and try to remind them, but they usually forget, thankfully for me plumbing is dirt cheap. Please note it will help with Hair to slide down the pipes, but won't completely prevent it from sticking.
Lisa[/QUOTE
Thanks Didn't know! I don't know how this stuff is not better known its magic in my opinion, I have not had any sludge issues since using it.