The flush toilet was invented this day in 1861 in England by Thomas Crapper (thus explaining its nickname). While still much the same after all these years, simple things can affect its flushability. When it's not flushing right you might think the problem is low water pressure, but pressure has nothing to do with it. Water in the tank does the job. It fills the bowl and begins the flush. The siphon action in the p-trap below completes it. Gravity starts it, and siphoning draws it through. When a toilet doesn't work right, it's because it's not getting enough water. First check the tank. If the level seems low, adjust it by raising the float. Then check the water ports under the rim. They might be clogged with built-up mineral deposits. Using a small mirror, locate and clean each one, using a wire coat hanger dipped in white vinegar. With the proper water level and clean rim ports, chances are you'll be "flush" with the same success as good old "Thomas what's-his-name". And that's the On The House tip for today.