I have to change the sand filter,
First, when I check the sand that I have it look like the attached file, I am not sure it is glass or mixed with glass, any identification would be helpful.
Second I have the option between the Aqua Quartz and the natural stone , the question which one is better for filtration
http://www.hardwaretogo.com/product/pool-filter-sand-50-lb.html
http://www.clubpiscine.ca/723-product-pumps-and-filters-natural-stone-for-filtration.html
Thanks
First, when I check the sand that I have it look like the attached file, I am not sure it is glass or mixed with glass, any identification would be helpful.
Second I have the option between the Aqua Quartz and the natural stone , the question which one is better for filtration
http://www.hardwaretogo.com/product/pool-filter-sand-50-lb.html
http://www.clubpiscine.ca/723-product-pumps-and-filters-natural-stone-for-filtration.html
Thanks