palintest 9 Manual - PoolAndSpaCentre

® POOL.INST.41
INSTRUMENTS
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Pooltest
Professional Plus
TEST INSTRUCTIONS
9
FOR USE WITH PALINTEST POOLTEST 9 SERIES PHOTOMETERS
Palintest Pooltest 9 Professional Plus series photometers are precision colorimeter
instruments specially developed for testing swimming pool water. These instructions
give the procedures for the tests included on your photometer and will help you get
the best results from the instrument.
GETTING THE BEST RESULTS
To get the best results from the photometer follow these simple guidelines :-
1 Carefully read the instructions for using the photometer and understand the
operation of the instrument.
2 Read the test instructions carefully and carry out the procedures precisely as
instructed.
3 Add the tablets to the sample in the manner described in the instructions. Crush
or allow to disintegrate as indicated. Use a separate crushing rod for each tube.
Do not shake the test tubes in order to dissolve the tablets.
4 Place cap on the test tube when the tablets have dissolved before taking
test reading. For most tests, it does not matter if a few small undissolved particles
remain, provided these have settled to the bottom of the tube.
5 Before taking photometer readings ensure that the outside of the tube is clean and
dry. Use a tissue if necessary to wipe off any water drips or condensation.
6 Wash test tubes, caps and crushing rods thoroughly under a running tap after use.
Brush off any stains or deposits. Dry on a clean cloth or rinse with deionised water
before re-use.
7 Replace any test tubes which become scratched or permanently stained.
8 Use the light cap when working out of doors in strong sunlight.
SP 790

SAMPLE COLLECTION
Take pool water samples from below the water surface. Collect in a clean plastic bottle
and fill to the neck so as to avoid unnecessary airspace.
The free chlorine, bromine or ozone levels may drop during sample storage. Other
parameters such as pH and alkalinity can also change. Samples should therefore be
tested as soon as possible after sample collection.
DILUTING THE POOL WATER SAMPLE
When the test result is outside the concentration range of the test, the photometer will
display the > > symbol. In such cases, it is necessary to dilute the pool water and
repeat the test. If the result is close to the top of the scale (eg chlorine above 4 mg/l on
Chlorine-Free/5 or Chlorine-Total/5 range, calcium hardness above 300 mg/l or cyanuric
acid above 150 mg/l) and a more accurate result is required, a dilution may be used to
increase the sensitivity of the test :-
1 Take a Dilution Tube (PT 512) and fill to the x2 mark with pool water. Make-up to
the ‘Deionised Water’ mark with deionised water. Replace the tube cap and mix.
2 Carry out the test on the diluted sample in a 10 ml test tube as per the normal test
instructions.
3 Take the photometer reading in the normal manner.
4 Multiply the test result display be x2 to find the concentration in the original pool
water sample.
Samples may be diluted to a greater extent if necessary. Use the dilution factor appropriate
to the dilution used. Note that it is not possible to dilute samples in the pH test, or when
working in transmittance.
Note the Chlorine/10 range may be used with the appropriate DPD-XF and DPD-XT
tablets to avoid sample dilution.
TEST INSTRUCTIONS
Two ranges are available for free and total chlorine testing:
0 – 5 ppm with traditional DPD No 1 and DPD No 3 tablets
OR
0 – 10 ppm with new DPD-XF and DPD-XT tablets.
Use the SYSTEM MODE to select the range required. Once selected, the
instrument will recall the range selection each time it is used.

Test 1 FREE CHLORINE
Option 1: Range 0 - 5.00 mg/l (ppm) Colourless - Red
1 Rinse test tube with sample leaving two or three drops in the tube.
2 Add one DPD No 1 tablet, crush tablet and then fill the test tube with sample to
the 10 ml mark. Mix to dissolve tablet and ensure any remaining particles have settled.
3 Take photometer reading immediately, as result may drift on standing. Ensure
display shows the Chlorine-Free/5 test is selected.
4 Retain test solution if Total Chlorine test required.
Test 1 FREE CHLORINE
Option 2: Range 0 - 10.0 mg/l (ppm) Colourless - Red
1 Rinse test tube with sample leaving two or three drops in the tube.
2 Add one DPD-XF tablet, crush tablet and then fill the test tube with sample to
the 10 ml mark. Mix to dissolve tablet and ensure any remaining particles have settled.
3 Take photometer reading immediately, as result may drift on standing. Ensure the
display shows the Chlorine-Free/10 test is selected.
4 Retain test solution if Total Chlorine test required.
Test 2 TOTAL CHLORINE
Option 1: Range 0 - 5.00 mg/l (ppm) Colourless - Red
1 Carry out this test on the solution remaining from the Free Chlorine test.
2 If any shock treatment chemicals have been added to the pool, add one DPD Oxystop
tablet, crush and mix to dissolve. This will prevent a response caused by the shock
treatment chemicals.
3 Add one DPD No 3 tablet, crush and mix to dissolve.
4 Stand for two minutes.
5 Take photometer reading. Ensure the display shows Chlorine-Total/5 test is selected.
Test 2 TOTAL CHLORINE
Option 2: Range 0 - 10.0 mg/l (ppm) Colourless - Red
1 Carry out this test on the solution remaining from the Free Chlorine test.
2 If any shock treatment chemicals have been added to the pool, add one DPD Oxystop
tablet, crush and mix to dissolve. This will prevent a response caused by the shock
treatment chemicals.
3 Add one DPD-XT tablet, crush and mix to dissolve.
4 Stand for two minutes.
5 Take photometer reading. Ensure display shows the Chlorine-Total/10 test is selected.
To obtain COMBINED CHLORINE residual subtract Free Chlorine result from Total
Chlorine result :-
ie Combined Chlorine = Total Chlorine - Free Chlorine

Test 3 BROMINE
Range 0 - 10.00 mg/l (ppm) Colourless - Red
1 Rinse test tube with sample leaving two to three drops in the tube.
2 Add one DPD No1 tablet, crush tablet and then fill the test tube with sample to the
10 ml mark. Mix to dissolve tablet and ensure any remaining particles have settled.
3 Take photometer reading immediately, as result may drift on standing.
Test 4 OZONE
Range 0 - 2.00 mg/l (ppm) Colourless - Red
1 Rinse test tube with sample leaving two to three drops in the tube.
2 Add one DPD No 4 tablet, crush tablet and then fill the test tube with sample to the
10 ml mark. Mix to dissolve tablet and ensure any remaining particles have settled.
3 Take photometer reading immediately.
The ozone test also responds to chlorine and bromine. Pools using 'ozone with
chlorine' treatment systems, or other combined treatments, require a special testing
procedure. See separate leaflet.
Test 5 COPPER
Range 0 - 5.00 mg/l (ppm) Colourless - Purple
FREE COPPER
Use this test for pools treated by copper/silver ion generators or treated with
uncomplexed forms of copper such as copper sulphate.
1 Fill test tube with sample to the 10 ml mark.
2 Add one COPPERCOL No 1 tablet, crush and mix to dissolve.
3 Take photometer reading.
TOTAL COPPER
Use this test for pools treated with chelated or complexed forms of copper. Typically
these compounds are used as algicides or winterising treatments.
1 Fill test tube with sample to the 10 ml mark.
2 Add one COPPERCOL No 1 tablet and one COPPERCOL No 2 tablet, crush and
mix to dissolve.
3 Take photometer reading.

Test 6 pH VALUE
Range 6.8 - 8.4 Yellow - Red
1 Fill test tube with sample to the 10 ml mark.
2 Add one PHENOL RED tablet, crush and mix to dissolve.
3 Take photometer reading.
Test 7 ALKALINITY
Range 0 - 500 mg/l (ppm) Yellow - Green - Blue
1 Fill test tube with sample to the 10ml mark.
2 Add one ALKAPHOT tablet, crush thoroughly and mix. Ensure all of the particles
have dissolved completely.
3 Allow to stand for one minute.
4 Take photometer reading.
Test 8 CALCIUM HARDNESS
Range 0 - 500 mg/l (ppm) Violet - Orange
Use Test 8 for fresh water swimming pools. Press key twice within two seconds to
access Test 88 for saltwater pools.
1 Fill test tube with sample to the 10 ml mark.
2 Add one CALCICOL No 1 tablet, crush and mix to dissolve.
3 Add one CALCICOL No 2 tablet, crush and mix to dissolve.
4 Stand for two minutes.
5 Take photometer reading.
Test 9 CYANURIC ACID
Range 0 - 200 mg/l (ppm) Clear - Cloudy
Use this test for chlorine-treated pools stabilized with cyanuric acid or using 'stabilised
chlorine' donors. Cyanuric acid is commonly referred to as 'Chlorine Stabiliser' or 'Pool
Conditioner'.
1 Fill test tube with sample to the 10 ml mark.
2 Add one CYANURIC ACID tablet and allow to disintegrate for at least two minutes.
A cloudy solution indicates the presence of cyanuric acid.
3 Crush any remaining undissolved tablet, mix and then take photometer reading. Use
the light cap whilst blanking and taking reading.
It is recommended that the light cap is used when carrying out this test under strong or
variable lighting conditions.

Test 77 WATER BALANCE
To determine Water Balance Index using the Pooltest 9 Professional Plus, three tests
must be prepared and read using the Water balance test program :
Alkalinity (Alkaphot), Calcium Hardness (Calcicol) and pH (Phenol Red) tests are
required. Prepare the test solutions and proceed as follows :-
1 Select Test 77 by pressing Alkalinity key twice.
2 Carry out alkalinity test then select ‘Follow on’ from the OPTIONS menu at the
results screen.
3 Carry out the calcium hardness test then select ‘Follow-on’ from the OPTIONS
menu at the results screen.
4 Carry out the pH test then select ‘Follow-on’ from the OPTIONS menu at the results
screen.
5 The Water Balance Index is calculated and is displayed. Consult the chart below for
guidance.
NOTE: If any of the tests are out of range, the procedure is ended. If an incorrect reading
is taken part-way through the procedure, insert the correct tube then select ‘Read’ from the
OPTIONS menu. The new reading will replace the former incorrect value in the Water
Balance Calculation:
Index
Below 9.6
Water Balance
Condition
Highly Corrosive
9.6 to 10.5 Corrosive
Recommendation
Increase pH to 7.5 - 7.8.
Increase Calcium Hardness to at least
50 mg/l.
Increase Total Alkalinity to 100 mg/l
or higher as necessary.
Retest Water Balance.
10.6 to 10.9 Acceptable Balance Retest water regularly.
11.0 to 11.2 Ideal Balance No action required.
11. 3 to 11.6 Acceptable Balance Retest water regularly.
11. 7 to 12.6 Scale Forming
Above 12.6
Highly Scale Forming
Decrease pH to 7.2 - 7.5.
Decrease Total Alkalinity to 150 mg/l or
lower as necessary.
Retest Water Balance.
NOTES
1 The test has been calculated for an average heated swimming pool (82°F, 28°C).
For unheated swimming pools, subtract 0.1 from the index value obtained, for high
temperature pools and spas, add 0.1 to the index value obtained.
2 Always keep the pH, Total Alkalinity and Calcium Hardness levels within the limits
recommended in pool operating instructions and chemical suppliers' recommendations.
Seek specialist advice if corrosion or scale formation is still apparent even though
the water is shown to be in a balanced condition.

REORDER CODES FOR REPLACEMENT REAGENTS
Replacement reagents for each of the tests are available under the following product
codes - packs contain sufficient tablets for 250 tests :-
AP 011
AP 031
AP 013
AP 033
AP 060
AP 056
AP 187
AP 186
AP 130
AP 188
AP 252
AP 087
Free Chlorine
Free, Combined and Total Chlorine
Free Chlorine (DPD-XF)
Free, Combined and Total Chlorine (DPD-XF and DPD-XT)
Bromine
Ozone
Free Copper
Free and Total Copper
pH (Phenol Red)
Alkalinity (Alkaphot)
Calcium Hardness (Calcicol)
Cyanuric Acid
PT 595/5 Replacement Photometer Test Tubes (Pack of 5)
V3-04/08