However, my wife is complaining that there is a gritty / sandy residue left behind on the dishes, as did the old Kenmore unit.
Now, with this happening with two different units, I can't blame one or the other. I'm leaning on the culprit being the water line, or sediment in the hot water heater.
I have a single stage GE filter on the cold line entering the entire house, filters water to the water heater too, and it gets changed about every 3 months.
Now, I'm considering installing an additional single stage under the sink on the hot side between the tap and the DW, to possibly rule out sediment in the water heater.
As far as the unit goes, the water temp is about 125 degrees, the arms spin freely, and are not cracked or broken (due to being a brand new unit). The detergent door is opening, etc.
What is anyone's opinion or experience on sandy / gritty residue, even with a new DW?
What do you think of my installing a filter between the hot water and DW.
Are these water filters designed to handle hot water?
Would it be best to install under the sink, or near the water heater?
Thank you for your experience, suggestions and answers.