lime away/CLR

I have Lime this the same as CLR? Will it work for Calcium deposits? From other posts you may remember that I have hard water that has caused deposits on my kitchen sink faucet and my washing machine hot water hose. I am apprehensive about using the Lime Away because of the drinking water from the kitchen and the acid in the washer burning my clothes. I guess I should run an empty load with no soap in the washer...will one run be enough? And for the kitchen sink how long does it have to run to wash away the acid so the water is safe to drink?
Eddie G
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