Calcium hardness must be actively managed—along with pH and total alkalinity—to keep water in proper chemical balance. Current industry standards call for maintaining calcium hardness in the ideal range of 200–400 ppm in pools.
Hayward Replacement Sight Glass includes the threaded glass along with the O-Ring, allowing you to replace the entire assembly hassle free. The glass is see through, providing a clear vision to see the clarity of you water before and after backwashing. SPX0710MA
The Woodridge Chaise Lounge features an inviting, transitional design that is defined by its comfort and attention to detail. The synthetic weave is supported by a high grade aluminum, providing a timeless look that requires virtually no maintenance.