Dishwasher not cleaning dishes good

[tia1971]

I have a dishwasher that does not clean the dishes properly. It leaves stuff that looks almost like sand on the top of all the dishes on the top rack. I have tried everything I can think of. Please help me figure this one out.

[DIY Guy]

The sand like substance may very well be undissolved abrasive material from your dishwasher soap. Most people don't realize dishwasher soap needs to be fresh. Buy a package that you can use in a month. As it ages, it looses effectiveness. Also consider switching to another brand.

Another possibility is the way you are loading the dishwasher. If dishes interfer with the wash arms spinning freely or you overload the dishwasher, you will get poor wash results and poor rinsing and thus grit left behind on the dishes.

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[desertdispatch]

Obviously a late reply but want to put in my two cents. Having undisolved dishwashing soap could be the result of bad soap just as stated. But before soap can be disolved water temp has to be up to par. This could be low water temp from the main water heater or a faulty heating element inside the machine. Check both. Am I right folks?