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16 Answers

If so, do you use ordinary rock salt or do you buy specially from places like Harvey Norman?


Posted by mom57522, 2nd October 2014


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  • You can use salt for cleaning but I think bicarb of soda and plain white vinegar works better


  • Good question but what does rock salt do in a dishwasher?


  • Have never heard of this, I assume it helps clean?


  • I don’t have a dish washer, so I’m a bit jealous of your problem :/ My mother in law uses rock salt though. She just uses the stuff she buys in the supermarket, but you’re probably supposed to use the proper Harvey Norman stuff


  • I’ve never heard of this, but then, I don’t have a dishwasher….never have. But I’m reading the answers anyway, doesn’t hurt to know


  • I had never heard of this


  • I haven’t heard of this and wouldn’t do it unless the manufacturer recommended it


  • i have never heard of this before


  • Interesting question! What is the benefit of rock salt? What is the purpose? Thanks!


  • Ive never heard of using rock salt in a dishwasher is it a very old dish washer that you have ??


  • What does this do? Is it for cleaning dishes or the dishwasher itself?


  • Never heard of using rock salt in the dishwasher. Is it for washing the dishes or cleaning the dishwasher itself? Sounds interesting and a lot better for the environment then harsh chemicals, either way


  • I’ve never heard of doing this but it has inspired me to do some research!


  • My old dishwasher I used rock salt. Found it cheap in the reject shop or crazy Clark’s. My new one doesn’t use it though.


  • Can’t say I am really sure what the rock salt does? Any how bi-carb sprinkled on the bottom of the dishwasher between washes, cleans and freshens.


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