Filter sand has been ground to a size of .45 to .55 mm in diameter and is very rough when new. This roughness is what makes the sand efficient at filtering out the particles of dirt in your water. As this roughness is smoothed out – as stones in a stream wear smooth over time – your filter’s efficiency goes down. This means that your system has to run more frequently to accomplish the same task.
**Please note that ALL PRODUCTS pre purchased are to be picked up at Rome Pool & Spas location in Rome, NY 1513 E Dominick St, Rome, NY 13440. Please call 315.336.6900 to confirm hours for pickup. NYS laws prohibit the direct shipment of chemicals**