A method for executing a washing program in a dishwasher includes a spray system for spraying a washing liquid within a dishwasher onto crockery that has been disposed in the dishwasher as a washing program is executed. In one embodiment, a system on chip includes multiple masters, multiple slaves, multiple buses, and an interconnect module coupled to multiple masters and multiple slaves via multiple buses. The refractory mixture may be blended with an aggregate and cured. The backhoe includes a hydraulic valve that controls hydraulic pressure to the hydraulic cylinder and a sensor coupled to the hydraulic valve. The JIS-C hardness of the rubber-molded material is set to the range from 35 to 95 both inclusive.