I might have capped honey comes spring that hasnt been used by the girls.
Do I just leave it in place?
You just wait, how much they have it left.
It it is too much, it reduces egg area. You must take extra off.
When you give the third box, tear capping from frames and give 2 frames in the middle of larvas. Bees eat old honey and mix it to the new. But if it comes new honey a lot from field, they cap it again. Wait something rainy days or so. If third box is full of foundations, it is good.
It takes a week to clean old crystallized honey. If you help bees, spray or pour water on crystalls. Somethimes bees carry crystals out like rubbish. Water helps to handle crystals. Only trouble is that they carry valuable honey out.
I have handled with these method some hundred kilos. Just wait proper time.
If you see the bottom or in front of hive, it may be full of crystals. Give water on combs.
It is normal that you have winter honey or sugar in the hive. Just put in in the middle of larvas and bees will circulate it.