Last time i replaced the disposal the wife wanted a big sink so i did them both together. And yep, theres that little screen in the drain.
Our disposal has the magnets too but i dont even notice them. Not sure they do much.
And we have a dishwasher but the wife would rather just wash the dishes and put them away after a meal. I have her use the dishwasher a couple times a year just to try and keep the seals from drying up
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