Toilet Tank Specifications
Currently the oldest kind of toilets is the tank-type models which are predominately found in residential buildings. These models operate on the premises of gravity. The gravity forces the water from the bowl, the water tank refills, and then the bowl fills up with new water. The tankless models use force to put new water into the bowl, replacing the old water. Tankless toilets are being replaced with tank-type toilets. Why? Because tank-type toilets use less energy and water than the tankless models.
Toilet Tank Water Usage
The American Society of Mechanical Engineers requires toilet manufacturers to produce toilets that utilize green technology. Regulations require a dual tank flushing toilet have a maximum of six liters of water in each tank. Thirty percent of water used in a home comes from toilet usage. In an effort to conserve water, tank-type toilets must meet a maximum quantity of 1.6 gallons per flush. Requirements for dual tank models can have no more than 6 liters in each tank.
Toilet Tank Placement
In the past, the tank was installed above the toilet with a pipe that extended from the tank to the bowl. Nowadays, the tank-type product has a tank that is placed directly on top of the bowl. A tank-type toilet is manufactured in either one or two pieces. The one-piece toilet is constructed with the bowl attached to the bank. The two piece toilet requires placing and attaching the tank on the bowl.
Toilet Tank Water Pressure
Newer tanks use pressurized water so that the influx of water into the bowl is more forceful, reducing the amount of water that the unit needs to clear the waste. These models are noisier than the gravity models, however, they rarely clog due to the force of water in the flushing ability.
Toilet Tank Certification
A toilet manufacturer can submit their specifications to testing facilities for validation that their products meet particular standards. One of the main tests to receive certification is the toilet must have the ability to flush a soybean paste specimen effectively. Since tank models typically have a slower flow of water into the bowl, it is important that only one flush is needed to remove the waste. If a toilet requires several flushes to remove waste, it will use more water and therefore, less efficient. Customers who buy energy efficient toilets can take advantage of rebates from local agencies and/or water conservation organizations. With conscious-minded consumers, companies have an incentive to manufacture water efficient toilets.