How to remove calcar pockets from piping or surfaces?

11 Mar How to remove calcar pockets from piping or surfaces?

Spray pure NAMI every day for at least a whole week. If the calcar is very old, spray NAMI directly onto it and let it set in for an hour; if it’s still hard, spray again and wait until it removes easily. For daily usage, apply diluted NAMI and let is sit for at least 15min. Calcar for steel surfaces (e.g. shelves, colander) let is set in for a few hours and then rub with a sponge (harder side). Repeat this step if necessary.