Facts About Pressure Assisted Toilets
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Facts About Pressure Assisted Toilets

The pros and cons to pressure assisted toilets compared to traditional gravity-fed toilets to determine if they are the right choice for you.

Pressure assisted toilets used to found only in commercial and institutional facilities, but as the need for water conservation has increased, pressure assisted toilets are gaining in popularity for residential applications. The appearance of pressure assisted toilets look identical to gravity toilets. The difference lies with what is inside the tank.

 

Inside a Pressure Assisted Toilet Tank

Gravity toilets will have a fill valve, flapper, and water; a pressure assisted toilet has an inner tank. The inner tank is completely sealed with a water line connected to the top of the pressure tank. As water fills the tank, air inside the tank gets compressed. When the toilet is flushed, instead of just falling by the force of gravity, the water is forced out with the pressure of the compressed air. This pressurized stream of water cleans all the waste from the bowl much more efficiently than the water from gravity toilets. The pressure in the toilet is therefore created by using the water pressure from the city water main. There are some models that use a battery or electric pump if the water pressure is too low to provide enough pressure for the tank to flush properly. There are models that can operate at pressures as low as 20 to 25 psi.

Pressure assisted toilets are more expensive than gravity toilets, but they do a better job of removing waste from the bowl with less water.

Gravity-fed and Pressure Assisted Toilets

Pressure Assisted Toilet Issues

Pressure assisted toilets have come a long way in the past few years and are now becoming very efficient and quiet. The first generation of pressure assisted toilets were very noisy and some were not very reliable. Modern designs are more efficient and last longer than previous pressure assisted toilets. Pressure assisted toilet are still louder than gravity feed toilets.

More expensive pressure assisted toilet models may use a small electric pump to boost flushing pressure instead of compressed air. You can expect to pay two or three times as much for these electric powered versions as a standard pressure assisted toilet.

Parts can be more expensive and harder to obtain than standard gravity-fed toilets.

There are more replaceable components to pressure assisted toilets, even though they may require replacement for 5 years or more. You also need to be familiar with the operation of the pressure tank and maintenance routines.

Some people may need the assistance of a plumber to install a pressure assisted toilet.

Pressure Assisted Toilet Benefits

The benefits to using a pressure assisted toilet include lowering water consumption to 1.1 to 1.4 gallons per flush instead of 1.6 to 2.5 for standard toilets.

Pressure assisted toilets are better at removing waste from the bowl and clearing the drain line completely. While quality toilets are just as good at removing waste, they are times when they clog.

Pressure assisted toilet are useful in homes with older drain lines that tend to clog more frequently.

Pressure assisted toilets will not sweat in hot, humid weather since the water does not come in contact with the porcelain tank.

Pressure assisted toilets do not pass water through valve as gravity-fed toilets do sometimes when water leaks through the flapper valve.

 

Pressure Assisted Toilet Parts (American Standard)

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Comments (1)

Nice article. voted

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