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V. Theory of Operation
V. Theory of Operation
VA. Description of Operation/Cycle (continued)
Bosch dishwashers continuously filter all water using a triple filter method. A filter screen above the
sump filters out larger particles. A two-stage microfilter in the sump filters out finer particles. This
microfilter can easily be removed by customers for cleaning and should be cleaned regularly.
All currently sold Bosch dishwashers use aqua sensors to save water and energy – many older
models used them as well. These aqua sensors, located in the sump next to the flow-through heater,
measure water cleanliness (using a light beam and sensor) and add a pre-wash and/or pre-rinse cycle
only if water is dirty. Aqua sensors can save up to 20% of water and energy usage.
Bosch dishwashers use a four-level water spray as shown below. Water sprays up from the lower
spray arm, down from the overhead sprayer and both up and down from the upper spray arm.
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