Page 6 of 8 MODEL S311SX,S311SXV,S360SX IS311SX Rev B
WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
PROBLEM SOLVING LIST
LOW WATER FLOW SHORT FILTER CYCLES
POOL WATER WON'T CLEAR UP
REMEDY
1. Check skimmer and pump 1. Check for algae in pool and 1. Check chlorine, pH and total
strainer baskets for debris.
2. Check for restrictions in
intake and discharge lines.
3. Check for air leak in intake
line (indicated by bubbles
returning to pool).
4. Backwash filter.
superchlorinate as required.
2. Be sure chlorine and pH
levels are in proper range
(adjust as required).
3. Check surface of filter sand
for crusting or caking (remove 1 "
of sand if necessary).
alkalinity levels and adjust
as required.
2. Be sure flow rate through
filter is sufficient.
3. Operate filter for longer periods.
4. Be sure Vari-Flo valve is set on
"Filter" position.
POOL CHEMISTRY GUIDELINES
ACTION REQUIRED TO CORRECT POOL CHEMISTRY
SUGGESTED POOL CHEMISTRY LEVELS
TO RAISE TO LOWER
pH 7.2 to 7.6 Add Soda Ash Add Muriatic Acid or Sodium Bisulphate
TOTAL ALKALINITY 100 to 130 ppm Add Sodium Bicarbonate Add Muriatic Acid
CHLORINE (UNSTABILIZED) 0.3 to 1.0 ppm
Add Chlorine Chemical No action - chlorine will naturally dissipate
CHLORINE (STABILIZED) 1.0 to 3.0 ppm Add Chlorine Chemical No action - chlorine will naturally dissipate
CHLORINE STABILIZER 40 to 70 ppm
(Cyanuric Acid)
Add Stabilizer
Dilution - partially drain & refill pool with water
that has not been treated with Cyanuric Acid.
DATE OF INSTALLATION ____________________
PURCHASED FROM _______________________
MODEL _______________ SERIAL NUMBER _______________________
▲Retain this Warranty Certificate in a safe and convenient location for your records.
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
Pipe Size
[mm]
Flow rate
GPM [Liter/Min]
1”
[32]
20
[75]
1 ½”
[50]
45
[170]
2 ½”
[75]
110
[415]
1 ¼”
[40]
30
[110]
2”
[63]
80
[300]
3”
[90]
160
[600]
TABLE 2
PRODUCT REGISTRATION
R
tain F
r Y
r R
r
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