Also, in defense of the diverter-equipped models, that 920 has been going strong since the end of 2015, and now it's lived since August 2018 at my grandparents with fairly hard well water. Granddad has been instructed to use nothing but Cascade Platinum or Finish Quantum and to never let that rinse aid compartment run dry. From what I've gathered, hard water, cheap detergents, lack of rinse aid, and prewashing dishes are all factors that cause the diverter shaft to etch and start leaking.