8
Algae may
be caused by
insufficient levels
of oxidizer and/or
inadequate water
circulation.
Frequently caused by
improper start up. See
section on Start Up and
Install the Cartridge.
Troubleshooting Guide
Problem
What to look for
Cloudy water
Poor filtration
Slow filter turnover rates
Algae growth
Hazy pool water; may have slightly
green appearance.
Unbalanced water
1 High hardness
2 High TDS (total dissolved solids)
3 High pH
4 High total alkalinity
Algae
Green algae
Pea green color; attaches to pool walls;
sometimes colors the entire body of water
Black algae
Black spots on pool walls
Mustard algae
Yellow or brown film on steps or walls
Note:
Regular algaecide treatments are recommended for outdoor pools
that experience persistent algae problems. Do not use algae treatments
containing copper.
Stains
Blue/green
Copper or iron from pool equipment
corrosion or water supply
Red/brown
Iron or manganese from equipment
corrosion or water supply.
Black
Manganese in water supply.
Metal tarnishing
High native mineral content in
water; unbalanced water
Scale
Crusty deposits on
High pH and high total alkalinity
pool surfaces
High TDS (total dissolved solids)
or high hardness levels
