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Re:How to properly load a dishwasher (2020) by quietbritishjim on Wednesday September 08, 2021 @01:40PM (#28460488)
Beware that his advice about extra detergent for the prerinse stage doesn't apply to all dishwashers: some let a little water rinse through the detergent compartment during that part of the cycle, so some is released even if you're using a tablet. Once they get to the main part of the programme, the compartment flips open to let the tablet fall out so it can finish dissolving completely. This totally solves the problem described in the video. Unlike the type he describes, these dishwashers don't even have a separate place for prewash detergent (because it would be redundant).

I'm in the UK, and all dishwashers I've seen work this way, even really cheap ones. So it's probably a country thing (most likely Europe vs US).

Re:How to properly load a dishwasher (2020) by Scoundreller on Wednesday September 08, 2021 @02:27PM (#28461174)
Should be straightforward to figure out which kind your unit is (look and see if it is sealed off or not).
Re:How to properly load a dishwasher (2020) by loser777 on Wednesday September 08, 2021 @02:39PM (#28461326)
Note that a further complication is that some don't have a compartment but literally an indent on the tablet compartment where you're supposed to pour some prewash/detergent and it just gets incoporated into the mixture as it runs down. I suspect you can "boost" any dishwasher's prewash detergent amount by adding a bit on the door/in the bottom.
Re:How to properly load a dishwasher (2020) by systemvoltage on Wednesday September 08, 2021 @03:07PM (#28461652)
I'm in the US using a GE dishwasher. It is similar to the ones in UK - no pre-wash compartment.