Operating conditions of the tank

The tank of an automatic front-loader washing machine has to withstand the following punishing conditions it is exposed to soapy water, heated to near boiling point, agitated with up to 5 kg wet washing, pumps out the water, rinses several times, and finally spins the whole load at speeds of about 800 rpm - and it does this perhaps several times a day, every day, for about 10 years. 

With regard to stressing of the tank, it has to support the inner rotating drum which may contain up to 30 kg washing/water, carry concrete counterbalance weights (16 kg and 9 kg), and also have mounted on it the main drive motor, heater element, and thermostat. Inlet and outlet hoses are also connected to the tank. 

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