Yesterday, I noticed my water kettle had some scaling. So I did the trick where you fill it with vinegar, boil it, and let it sit overnight. Cleans it right up.

This morning, I woke up and my water kettle had water in it already, so I just boiled it and made my tea.

I very quickly realized I am not a clever man.

@Firr "This tea is quite tart..."
@Firr At least you only used vinegar!
@Firr If it makes you feel better, I've done that too

@Firr I ran a sonic humidifier with citric acid once. Not a good idea!

(Fortunately that was only in the bathroom, so it didn't ruin anything aside from temporarily that room's habitability.)

@Firr ya dun foolsed your aprils ya did
@Firr Did not the water smell funny while it boiled ?