Recently when I shared my latest Hull finds, suzieQ asked how I go about removing those nearly impossible calcium deposits, which were pretty bad on the pink Hull bird planter.
I failed to get a before picture of the planter, but the build-up was some of the worst I have ever come across.
To remove the deposits, I needed a few things. First, my nice deep kitchen sink. Second, a bottle of CLR cleaner. Third, a magic eraser. Lastly, plenty of water.
I stopped up the sink, poured a decent amount of CLR in, and filled it up with nice hot tap water. Finally, I put the piece to be cleaned in. Make sure there is enough water in the sink to cover the piece you are cleaning. I let the piece sit in the cleaner for quite a while (I don't remember exactly how long, it was somewhere between 12 and 24 hours). Keep checking the piece periodically and rubbing the areas of concern with the magic eraser. The calcium will rub off eventually!
Hopefully you have a nice double-bowl sink like me, so that you still have use of at least part of your sink.
P.S. Next time, I will try to remember to get pictures of the whole process. I realize this post is rather boring without any photos.