My bathroom sink has begun to drain rather slowly. So last night I stop and pick up a bottle or ROOTO. I've used this with great success before. I get home, pour the rooto down the drain. It sizzles, fizzes and all those wonderful sounds while filling the house with that oh so wonderful boiled egg smell lol... After the allotted time, I turn the cold water on. Sink fills with a nasty black as oil water. This time however, it didn't magically go away. I fill the sink some more. Still nothing. So, I scooped the water out and dumped in the toilet...
I decided to try it again, so I pour some more ROOTO in the drain... sounds and smells filling the house... This time I waited double the time. Hit the cold water...... Hit the cold water again.... scoop it out to the porcelain throne.
I had a sink that drained slowly... now... I have a sink that doesn't drain, a drain pipe with the remnants of acid in it, and I'm brushing my teeth in the kitchen... yippee.