The title of this post suggests that I know this how-to, but what it REALLY means is that I'm going to work through all of the suggestions other people have for this sort of thing. And since the beginning of this week was spent with tub plumbing, I might as well just move over to toilet plumbing.
Yes, that's right, the toilet in the main bathroom is flushing at a very leisurely rate, which is simply passe in this age of high efficiency and getting-things-done! So I'm going to try to fix it by:
1. Seeing if the holes under the rim of the bowl (that let the water in from the tank) are fully open. Sometimes these get clogged with mineral deposits, which slows down the swirling action. Apparently you can scrape them out with the end of a clothes hanger. We'll see.
2. Checking the jet hole at the bottom of the bowl to see if it is clogged with mineral deposits, which can slow down the flush action.
3. Checking the water level in the tank, which should be 1/2" below the level of the overflow tube, whatever that is.
4. Moving.