WINTERIZING
In areas where sub-freezing temperatures can be expected,
the filter should be drained and removed from its operating
location and stored indoors. Prior to removal, cycle the filter as
described under CLEANING.
ALGAE CONTROL
Algae is a form of plant life which can vary in size from a few
thousandths of an inch to the size of a small tree. Of the many
forms of algae, those most frequently found in swimming pool
water are microscopic in size and green in color.
Algae readily grows in sunlight and can, under favorable
conditions, quickly overgrow a swimming pool turning it
completely green in just a few hours. On the other hand,
swimming pool water can be kept unfavorable to algae growth
simply by maintaining a chlorine level of at least 0.5 ppm in the
water at all times. The chlorine level should be checked at
least once a day using a suitable test kit.
If an algae condition develops and the pool water “blooms”
green, superchlorination of the pool will be necessary to clear
it. Add unstabilized granular chlorine, or liquid chlorine. Follow
SERVICE & REPAIRS
Consult your local authorized
Hayward-Perflex dealer or
service center. No returns may be made directly to the factory
without the expressed written authorization of Hayward Pool
Products, Inc.
chemical manufacturer’s recommendation for superchlorination.
The algae will quickly become inactive and can then be
removed by the filter. Live algae, on the other hand, multiplies
so fast that the filter cannot keep up with its growth rate. In an
active algae situation, it may be necessary to regenerate the
Perflex filter as frequently as every 2 to 3 hours.
When correctly used, commercial algaecides are effective
against algae, though algaecides should be used in
conjunction with, and not as a substitute for, regular
chlorination or superchlorination.
Maintaining a chlorine level of at least 0.5 ppm in the pool water
at all times is the most effective way to prevent algae growth in
swimming pools.
POOL CHEMISTRY GUIDELINES
ACTION REQUIRED TO CORRECT POOL CHEMISTRY
TO RAISE
TO LOWER
SUGGESTED POOL CHEMISTRY LEVELS
pH
TOTAL ALKALINITY
CHLORINE (UNSTABILIZED)
CHLORINE (STABILIZED)
CHLORINE STABILIZER
(Cyanuric Acid)
7.2 to 7.6
100 to 130 ppm
0.3 to 1.0 ppm
1.0 to 3.0 ppm
40 to 70 ppm
Add Soda Ash
Add Sodium Bicarbonate
Add Chlorine Chemical
Add Chlorine Chemical
Add Stabilizer
Add Muriatic Acid or Sodium Bisulphate
Add Muriatic Acid
No action - chlorine will naturally dissipate
No action - chlorine will naturally dissipate
Dilution - partially drain & refill pool with water
that has not been treated with Cyanuric Acid.
©1998 Hayward Printed in U.S.A.
Rev. 11/98
