Just looking around the internet at pool filters and ran into this statement on one site.
Crushed sand filter systems are being outlawed in a growing number of areas because of the need to back flush, which causes contaminated water to mix with groundwater supplies.
Anyone run into this or heard of this happening in their area?
Crushed sand filter systems are being outlawed in a growing number of areas because of the need to back flush, which causes contaminated water to mix with groundwater supplies.
Anyone run into this or heard of this happening in their area?