The shopvac technique was thr best ever. I have had a slow drain for a couple weeks and nothing was working. Snakes, plunger, chemicals, nothing. Five minutes of setup and ten seconds of shopvac and the clog was sucked up to where I could see it and snag it with a snake. I will definitely be using that method in the future if it slows down again.
I agree! Did this for my bathtub and it was back to normal in no time!