Cloudy water (hazy water)
occurs when there is dirt, debris or algae suspended in the
water. There are usually a few reasons for this: (1) the filter is compacted
with too much debris and incapable of cleaning any more water; (2) the
chemical balance may be improperly sanitized and bacteria (algae) is present; (3)
the filter isn't being circulated long enough to clean the entire water supply.
Refer to filters.
If filter is dirty backwash and clean filter thoroughly then circulate 24 to 48 hours
or until water is clear.
If bacteria (algae) is present: Backwash and clean filter then shock pool
with sanitizer and circulate pool or spa until it clears up.