Flushed Up Meaning

[Nell Barreto]

Theredness can manifest as red patches or blotchiness, and is caused by increased blood flow to the face, causing blood vessels to enlarge. The enlarged blood vessels cause the face to go red.

A flushed face is often the result of anxiety, stress, embarrassment, or even spicy foods, but it could also be the result of an underlying medical condition, such as rosacea, Cushing's disease, or a niacin overdose. If you experience recurring, unexplained flushing, seek medical attention.

A flush toilet (also known as a flushing toilet, water closet (WC); see also toilet names) is a toilet that disposes of human waste (principally urine and feces) by using the force of water to channel it through a drainpipe to another location for treatment, either nearby or at a communal facility. Flush toilets can be designed for sitting or squatting, in the case of squat toilets. Most modern sewage treatment systems are also designed to process specially designed toilet paper. The opposite of a flush toilet is a dry toilet, which uses no water for flushing.

Flush toilets are a type of plumbing fixture and usually incorporate an S-, U-, J-, or P-shaped bend called a trap that causes water to collect in the toilet bowl to hold the waste and act as a seal against noxious sewer gases. Most flush toilets are connected to a sewerage system that conveys wastewater to a sewage treatment plant; alternatively, a septic tank or composting system may be used.[3]

A typical flush toilet is a fixed, vitreous ceramic bowl (also known as a pan) which is connected to a drain. After use, the bowl is emptied and cleaned by the rapid flow of water into the bowl. This flush may flow from a dedicated tank (cistern), a high-pressure water pipe controlled by a flush valve, or by manually pouring water into the bowl. Tanks and valves are normally operated by the user, by pressing a button, pushing down on a handle, pulling a lever or pulling a chain. The water is directed around the bowl by a molded flushing rim around the top of the bowl or by one or more jets, so that the entire internal surface of the bowl is rinsed with water.

Toilets without cisterns are often flushed through a simple flush valve or "Flushometer" connected directly to the water supply. These are designed to rapidly discharge a limited volume of water when the lever or button is pressed then released.

Passenger train toilets, aircraft lavatories, bus toilets, and ships with plumbing often use vacuum toilets. The lower water usage saves weight and avoids water slopping out of the toilet bowl in motion.[6] Aboard vehicles, a portable collection chamber is used; if it is filled by positive pressure from an intermediate vacuum chamber, it need not be kept under vacuum.[citation needed]

Tank fill valves are found in all tank-style toilets. The valves are of two main designs: the side-float design and the concentric-float design. The side-float design has existed for over a hundred years. The concentric design has only existed since 1957 but is gradually becoming more popular than the side-float design.

The side-float design uses a float on the end of a lever to control the fill valve. The float is usually shaped like a ball, so the mechanism is often called a ball-valve or a ballcock (cock in this context is an alternative term for valve; see, for example, stopcock). Historically floats were made from copper sheet, but are now usually plastic. The float is located to one side of the main valve tower or inlet at the end of a rod or arm. As the float rises, so does the float-arm. The arm connects to the fill valve that shuts off the inflow of water when the float reaches a level at which the volume of water in the tank is sufficient to provide another flush.

The newer concentric-float fill valve consists of a tower which is encircled by a plastic float assembly. Operation is otherwise the same as a side-float fill valve, even though the float position is somewhat different. By virtue of its more compact layout, interference between the float and other obstacles (tank insulation, flush valve, and so on) is greatly reduced, thus increasing reliability. The concentric-float fill valve is also designed to signal to users automatically when there is a leak in the tank, by making much more noise when a leak is present than the older style side-float fill valve, which tends to be nearly silent when a slow leak is present.

In tanks using a flapper-flush valve, the outlet at the bottom of the tank is covered by a buoyant (plastic or rubber) cover, or flapper, which is held in place against a fitting (the flush valve seat) by water pressure. The user pushes a lever to flush the toilet, which lifts the flush valve from the valve seat. The valve then floats clear of the seat, allowing the tank to empty quickly into the bowl. As the water level drops, the floating flush valve descends back to the bottom of the tank and covers the outlet pipe again. This system is common in homes in North America and in continental Europe. From 2001, due to a change in regulations, this flush system has also become available in the UK, where prior to that the siphon-type flush was mandated.[7][8]

In North America, newer toilets have a 3 in (76 mm) flapper-flush valve. Older toilets have a 2 in (51 mm) flapper-flush valve.[9] The larger flapper-flush valve is used on toilets that use less water, such as 1.6 US gal (6.1 L) per flush. Some have a bell inlet for a faster more effective flush.

A problem with the valve type flush mechanism is that it invariably starts to leak after a couple of years use due to wear and tear of the valve, particles, etc. trapped in the valve. Quite often this leakage is barely noticeable but adds up to a considerable water wastage. In the UK it has been found that between 5 and 8% of toilets (mostly dual flush drop valves) are leaking, each one between 215 and 400 L (57 and 106 US gallons) on average per day.[10] Whilst they save more water than they leak, regular maintenance or use of a non-leaking flush mechanism will maximise water savings.

This system, invented by Albert Giblin and common in the UK, uses a storage tank similar to that used in the flapper-flush-valve system above.[11] This flush valve system is sometimes referred to as a valveless system, since no valve as such is required.

The siphon is formed of a vertical pipe that links the flush pipe to a domed chamber inside the cistern. A perforated disc, covered by a flexible plate or flap, is fitted inside this chamber and is joined by a rod to the flush lever.

Pressing the lever raises the disc, forces water over the top of the siphon into the vertical pipe, and starts the siphonic flow. Water flows through the perforated disc past the flap until the cistern is empty, at which point air enters the siphon and the flush stops.

The advantage of a siphon over the flush valve is that it has no sealing washers that can wear out and cause leaks, whereas other valve types - flapper, drop valve do leak, invariably after a couple of years of use and they have reduced water savings due to the valves not being maintained in practice. The siphon membrane will require occasional replacement.

Until 1 January 2001, the use of siphon-type cisterns was mandatory in the UK[12] but after that date the regulations additionally allowed pressure flushing cisterns and pressure flushing valves (though the latter remained forbidden in houses). Siphons can sometimes be more difficult to operate than a "flapper"-based flush valve because moving the lever requires more torque than a flapper system. This additional torque is required because a certain amount of water must be lifted up into the siphon passageway in order to initiate the siphon action in the tank. Splitting or jamming of the flexible flap covering the perforated disc can cause the cistern to stop working.

Pressure-assisted toilets are sometimes found in both private (single, multiple, and lodging) installations as well as light commercial installations (such as offices). Products from several companies use 5.5 to 4 L (1.4 to 1.0 US gallon) per flush.

The mechanism consists of a plastic tank hidden inside the typical ceramic cistern or an exposed metal tank/cistern.[13]When the tank fills with water, the air trapped inside compresses. When the air pressure inside the plastic tank reaches a certain level, the tank stops filling with water. A high-pressure valve located in the center of the vessel holds the air and water inside until the user flushes the toilet.[14]

During flushing, the user activates the valve via a button or lever, which releases the pressurized water into the bowl at a flow rate much higher than a conventional gravity-flow toilet. One advantage to this is lower water consumption than a gravity-flow toilet, or more effectiveness with a similar amount of water. As a result, the toilet does not clog as easily as those using non-pressurized mechanisms.

However, there are some financial and safety disadvantages. These toilets are generally more expensive to purchase, and the plastic tanks need to be replaced about every 10 years. They also have a noisier flush than other models. In addition, pressure-assisted tanks have been known to explode, causing serious injuries and property damage, resulting in a massive recall beginning in 2012 of over 1.4 million toilets equipped with the tank.[15][16]

Some newer toilets use similar pressure-assist technology, along with a bowl and trapway designed to enhance the siphon effect; they use only 3.0 L (0.8 US gallons) per flush, or 1.9 L (0.5 US gallons) / 3.6 L (0.95 US gallons) for dual flush models.[17] This design is also much quieter than other pressure-assist or flushometer toilets.

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