The Working Theory of Dishwashers

Nancy B. Alston

Dishwashers are a category of appliances that handle your most tiresome job, washing the dishes and cooking utensils. Dishwashers were considered as a symbolization of prodigality during the previous era. Time has changed and so do the technology. The impact of technology has visualized far reaching sequences and has left no space for a setback. Modern dishwashers have broken the limitation walls of their ancestors and have found themselves a new place in the domestic utilities. Dishwashers come of varying range like fully integrated, freestanding, compact, counter top, full size and slim line but all these machines are incorporated with almost, a similar bundle of features except for slight variations among them.

The basic steps of dishwashing:

Water filling

Dishwasher acquires water from the domestic water supply provision, with the help of its inlet pipe. The water that is acquired is used in filling the system for the wash process.

Temperature setting

The water is heated to the assigned temperature as a part of wash process settings. High temperatures are utilized when the degree of dirt on the dishes is high and lower temperatures are engaged when the dishes feature low level soiling.

Detergent usage

The detergent dispenser of a dishwasher releases detergent into the wash process at a precise time to remove the soil from the dishes, effectively. Many high end dishwashers feature the 3-in-1 or a 5-in-1 tablet selector option that automatically detect the category of detergent used and adjusts the wash settings accordingly.

Spray system

The spray system of a dishwasher sprays the water through jets, vigorously, to remove off even dried on stains, efficaciously. The sprayed water is collected as the bottom and drained off. This rinse process is engaged repetitively until the dishes are cleaned completely and the drain is expelled through an outlet pipe. Orbital spray system is one of the most common types of spray system, where water is sprayed through the jets in a rotational mode, so that water reaches every part of the dishes, evenly.


After the wash cycles are over, a dishwasher dries the dishes by various methodologies, which may vary according to the type as well as brand of the dishwasher. The most common method of drying is residual drying, which utilizes the hot air produced during the last cycle to dry the dishes.

A dishwasher is designed with certain features that too contribute to the performance of the appliance. Some of the features are:

Rinse aid

A dishwasher features a special provision for rinse aid, from which it is dispensed at accurate time of the cycle. These rinse aids includes surfactant particles that prevent the formation of white spots (due to lime scale formation) upon the surface of dishes.

Water softening device

This feature plays a very useful, especially when you reside in hard water areas. This device adjusts the water’s hardness to enhance the wash results.

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