We use a combination of methods to assess how well a toilet gets the entire bowl clean. First, we use a water-based red paint to create a solid rectangular shape above the waterline in the front bottom of a clean bowl. A picture is taken of the red rectangle, then the toilet is flushed two times. After the second flush a second picture is taken to record how much of the paint has been removed.
A second way we test to see how well a toilet cleans waste: We let the bowl fill up, then we draw a line using a water-soluble pen around the bowl about an inch under the rim. Next, we flush. We then measure how much pen markings are left. The better a toilet cleans, the fewer markings and paint are left. We repeat the pen test three times and calculate the average to arrive at a score. To gauge soil and odor potential, we measure the length and width as well as how deep the water is in the bowl.
The deeper and wider the water, the better solid waste odors will be trapped by the water. In our noise tests, we measure with a decibel meter how loud a toilet is during flushing.
While there are many features to consider when buying a toilet, including height, bowl shape, color, style, and flushing technology, most toilets fall into one of two basic types: gravity-feed and pressure-assisted. Gravity-feed toilets dominate the market, but pressure-assisted models are worth a look. As their name implies, these toilets have a flush valve that relies on gravity.
Water drops from the tank into the bowl to move waste down the drain. They can work with as little as 10 pounds per square inch of household water pressure.
Pros: Gravity-feed toilets flush more quietly than pressure-assisted models. Many we tested work every bit as well as the best pressure-assisted models. As water compresses air within the sealed tank, it creates pressure that thrusts waste forcefully down the waste line. A pressure-assisted toilet is an especially good choice for large families, but it does have a noisier flush. Before buying, be sure that your home has at least 25 pounds per square inch of water pressure, the minimum required for a pressure-assisted toilet to work properly.
Pros: Pressure-assisted toilets dispatch the simulated solid waste in our tests with few clogs. If you have little kids who like to stuff the toilet with toilet paper, these can be a lifesaver.
Cons: These toilets are noisy; the loudest ones emit an emphatic whoosh. They can also be expensive. They generally don't do as well as our top-rated gravity models for drainline carry how well waste moves through to the septic system or municipal sewer , and none make it into our top 10 rated toilets. Once you decide on the basic design you want to install, there are some important toilet features to consider before you buy.
A Department of Energy requirement limits new toilets to 1. All the toilets in our tests meet that standard, and the majority of the tested models meet the stiffer California standard, which limits toilets sold in that state to 1.
The high-efficiency models that satisfy the California standard carry a WaterSense label. Newer models may come without any flappers the rubber seal inside the tank , which can help keep leaks to a minimum without sacrificing flushing power. It looks neater than the plastic connector in link toilet suites, but you'll still have to clean the trap pipeware. This is the next step up, budget-wise. As well as eliminating any gap between the cistern and toilet pan, it also sits flush with the wall so there's no cleaning behind the toilet for dust.
This covers a variety of designs, but the common factor is that the cistern is concealed, generally behind a wall or cabinet. The flush buttons are usually located vertically above the toilet pan, within an access panel on the wall or cabinetry. If a problem develops with the cistern, the plumber can gain access through this panel. The flush buttons are available in different configurations and can even be placed some distance from the toilet, allowing for a more innovative bathroom design.
The toilet pan can be floor-mounted, or wall-hung so you have clearance under the pan. Wall-hung pans can be useful for installing at a non-standard height for example, they can be set higher to accommodate taller people but they're only suitable for P trap set-outs. Also, since the pan and cistern generally don't come as a matched set, you need to make sure that the cistern you choose will work correctly with the pan.
For most of us, there is a rim under the edge of the toilet that the seat is positioned on. Cleaning under the rim is essential for removing any nasties that you can't see, but new rimless toilets have made this irrelevant - for a price.
Rimless toilets are exactly what you would think - the rim is gone and a simple sponge can clean everything. The design of rimless toilets means no splashing. They are a fairly recent phenomenom for Australia and the theory is that since you can see the rim, it means you only need to use a limited amount of toilet cleaner without spurting a whole bottle of it under the rim "just in case".
While aesthetically some people might appreciate rimless, we like the claim of being easier to clean. Less chemicals down your toilet and into the wastewater system is a good thing. If you can afford the extra cost - and it really depends on the brand you're buying - then it may well be worth it. Every toilet should have a WELS water efficiency labelling standard star rating, introduced by the Australian Government for water efficiency in The star rating lets you easily compare water usage between toilets — the higher the star rating, the more efficient the toilet.
Most toilets rely on gravity to flush, but if clogging is a problem, a toilet with a pressure-assist unit may be the solution. It can empty a 1. The typical height is 16 inches, but the Americans with Disabilities Act ADA mandates 17 to 19 inches as easier for older or less-able folks. The elongated bowl on this gravity-fed toilet has no siphon jet; all water exits the tank through the rim for a thorough cleaning.
Mounting a tank near the ceiling, in the Victorian fashion, increases the force of the flush. It takes less water to get rid of liquid waste than solids. The hard part is remembering to use it. Maximum performance MaP testing conducted by independent agencies determines how much solid waste a toilet can handle.
A rating of to grams for a 1. Mirror-smooth glazes loaded with antimicrobial ions typically silver actively kill 99 percent of the germs that try to grow on them.
The toilet basically cleans itself. Wall-mount toilets save space and ease cleanup. These Euro-style models hang from a sturdy steel or wood frame hidden in the wall, leaving an unobstructed, easy-to-clean floor underneath. The tank is also hidden; the only sign of its location is a small panel that activates the flush and provides access for tank maintenance.
The downside? The Washlet lid automatically rises as you approach. Rim jets are hard to keep clean and prone to clogging. Toilets without them, like the VorMax, shoot water in a whirlpool around the bowl, scouring away debris twice as effectively as the jets. When a flapper opens, it gets in the way of water exiting the tank. Canister-style flush valves like the AquaPiston lift the seal straight up, allowing water to flush with maximum force.
Enjoy the latest cool technology without replacing your old toilet. Just make sure your model is compatible with any add-on.
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