Help! Need to up my hardness in the water, found in Home Depot 50lb bags of pellets of fire https://images.homedepot-static.com/catalog/pdfImages/04/0422855d-b719-4b93-9261-6fcb9f88e5ed.pdf
Any idea if this is safe to put into my pool water?
Any idea if this is safe to put into my pool water?