Hayward Perflex EC50C Series Owner's Manual page 8

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.
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 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
SUGGESTED POOL CHEMISTRY LEVELS
pH
TOTAL ALKALINITY
CHLORINE (UNSTABILIZED)
CHLORINE (STABILIZED)
CHLORINE STABILIZER
(Cyanuric Acid)
PROBLEM
1. D.E. coated with normal accumulation of pool dirt, algae, etc.
2. Overcharge of D.E.
Running at high
3. Restriction in return line caused by small eyeball fitting.
pressures.
4. Partially closed valve on return line.
1. D.E. coated with normal accumulation of pool dirt, algae, etc.
2. Pump strainer basket clogged.
3. Skimmer basket clogged.
Drop off of return
4. Pump impeller vanes clogged.
flow.
5. Air leak on suction side of pump.
6. Electric motor running less than maximum R.P.M. (under speed)
1. D.E. loaded to capacity with pool dirt, algae, etc.
2. Bumping incorrectly.
3. Bump handle bent.
4. Pump output exceeds design flow rate of filter.
Short cycles.
5. Presence of algae.
Contaminated (clogged) Flex-Tube braids caused by:
a. Natural accumulation of chemical deposits (accelerated if chemicals
are fed thru skimmer).
b. Running D.E. charge too long with excessive amount of live algae
Short cycles -- present in pool.
even after proper c. Operating filter without D.E.
bumping, draining, d. Operating too long without D.E. after starting pump. D.E. must be
and recharging added as soon as filter is full of water and pump is putting out a steady
stream.
IMPORTANT — Testing a new pool plumbing system without adding
D.E. will cause this type of clogging.
TO RAISE
7.2 to 7.6 Add Soda Ash
100 to 130 ppm Add Sodium Bicarbonate
Add Chlorine Chemical
0.3 to 1.0 ppm
1.0 to 3.0 ppm Add Chlorine Chemical
40 to 70 ppm
Add Stabilizer
PROBABLE CAUSE
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
ACTION REQUIRED TO CORRECT POOL CHEMISTRY
TO LOWER
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.
REMEDY
1. Bump.
2. Bump-Drain-Recharge.
3. Change to larger size fitting.
4. Open valve.
1. Bump. Clean.
2. Clean.
3. Cleaning with a stiff wire thru the pump strainer
opening will usually work. Alternate would be to
disassemble-and clean.
4. Check cover gasket, hand knobs, hose, clamps, etc.
Replace or tighten as necessary.
5. Consult pump and motor trouble shooting guide.
NOTE: Most motor problems are due to:
a) Undersized or improper wiring.
b) Power cut-backs or a combination of both.
1. Bump-Drain-Recharge.
2. Slow down stroke - brisk upstroke. Repeat 6 times.
3. Check and straighten or replace.
4. Check GPM/LPM output. Regulate pump GPM/LPM
output to max. filter GPM/LPM rating.
5. Super-chlorinate; Bump-Drain-Recharge as
needed.
Clean Tube Nest
a) Detergent Cleaning: Remove tube nest and hose
down with forceful stream of clean water. Soak
tube nest in strong solution of laundry detergent
(such as Cheer) and warm water. Hose down
again.
b) Chemical Cleaning: This requires use of water
and muriatic acid solution (or filter cleaner-type
preparations) to chemically dissolve
contaminates. Consult your pool dealer for
chemical cleaning instructions.
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