The total lifetime of the pump is 300-500 hrs. The consecutive hours usage is 100 hrs.

Depending on minute use we determine that:

(6000 min)x(1 wash/30min) = 200 consecutive washes (assuming each wash lasts 30 min),

(6000 min)x(1 wash/20 min) = 300 consecutive washes (assuming each wash lasts 20 min),

(6000 min)x(1 wash/15min) = 400 consecutive washes (assuming each wash lasts 15 min)