Do you have trouble with mould, damp walls and mason work? This blog may help you!

Moisture causes saltpetre – Saltpetre causes moisture

If ascending dampness stays long enough in mason work (talking particularly about decades or centuries) moisture has enough time to dissolve salts from the ground and building materials.
Salt combined with water gives water a whole new quality and suddenly water becomes conductive.
This causes electrical processes but is currently not an item.
Combined with water salt is [...]