Some consider pressure-assisted toilets noisy, although Love says the whoosh of a pressure-assist is just unfamiliar compared to the gurgle of a gravity-flush toilet. Pressure-assisted toilets are more effective in removing solid waste and limiting odor and soil problems, but are also a bit more expensive than gravity-tank toilets; prices usually start around $230.
Both David Del Porto and Terry Love recommend the Toto gravity-flush toilet, pictured at left.
Gravity-flush toilets are the most common, have the simplest design and are usually the least expensive, ranging in price from $50 to $420.
Some new water-saving toilets are equipped with a pressure-producing device that improves flushing (it is called the Sloan Flushmate), but this device can't be retrofitted on existing gravity-flush toilets
. If frequent plunging becomes too annoying, I suggest having your most-troublesome toilets removed and replaced either with high-performance models or pressure-assisted flush models.