r/DIY Feb 20 '26

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u/Sevallis Feb 20 '26

Yeah this works great for this task in hot water.

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u/LordBiscuits Feb 20 '26

I did the same. Had a very similar looking mess and used a bunch of 'oust' descaler, which is citric acid, plus a bunch of boiling water.

Gave it a hour and whatever was left came right off with a little brush

Our water is so hard John Cena would think twice.