SAMPLE LOG SHEET – This sheet should be modified to suit the type of pool (see notes on reverse)
<Insert Name of centre> <Insert name of pool> Date
Pool Water Testing
Break point Total
<Insert POR <Insert POR 0.0mg/L at Alkalinit
range for this range for this the first test pH y Cal. Name Signature
pool> pool> of the day range range Hard Corrective actions taken of of
7.0-7.8 80- mg/L tester tester
200mg/
L
Free Combined
Total Chlorin Chlorine
Time Time Chlorin e mg/L mg/L
testin testin Temp e mg/L DPD 1 Total- Total
g g oC DPD 1+3 (a) (b) Free (a- pH Alkalinity
Due conducted b)
6am
9am
12pm
3pm
6pm
9pm
Dail
Combined chlorine must not
y exceed 1 mg/L and should
Ave. not be
more the half the free
chlorine Cyanurate acid concentration (weekly measurement) Date
Water Balance
Using the water balance chart on reverse, calculate the Langelier Saturation Index (LSI). The ideal LSI is 0.2 and the range is –0.5 to 0.5.
LSI = pH + TF + CF + AF - 12.1
where:
TF = Temperature factor
+ + + - 12.1 = Calculated by (signature)
CF = Calcium Hardness factor
pH TF CF AF LSI
AF = Alkalinity Factor
Daily Maintenance Log Detail what was undertaken and at what time of the day.
Time of
Maintenance area Maintenance undertaken maintenance Signature
Review by manager Data and corrective action to be reviewed by facility manager daily
Further action required or taken or other comments Name of Manager Signature of manager Date
Water Balance Chart
Temperature Temperature Calcium Calcium
Total Alkalinity Alkalinity Factor
(C°) Factor (Hardness) Hardness
Factor
0 0.0 5 0.3 5 0.7
3 0.1 25 1.0 25 1.4
8 0.2 50 1.3 50 1.7
12 0.3 75 1.5 75 1.9
16 0.4 100 1.6 100 2.0
19 0.5 150 1.8 150 2.2
24 0.6 200 1.9 200 2.3
29 0.7 300 2.1 300 2.5
34 0.8 400 2.2 400 2.6
40 0.9 800 2.5 800 2.9
53 1.0 1000 2.6 1000 3.0