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82-83 WATER TESTING:SPN Master pages 15/1/09 16:36 Page 3
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Pool test kits…
THE BASICS
Pool and spa water should be tested
once a week for its pH – the measure
FROM TEST STRIPS TO
of its acid / alkaline level. The range
should be between 7.2 and 7.8,
ideally 7.4 to 7.6.
COMPUTER DOWNLOADS
Improper pH levels can cause
waterborne bacteria and viruses.
Maintaining the proper pH helps
balanced water calculation function has maintenance costs lower by cutting
also been added, which automatically uses down on chemical use. And it can also
the results from the standard tests to prevent problems with the pool.
produce a Palintest or Langelier index
result. The standard or extended chlorine Low pH also causes dry or itchy skin
ranges can be easily selected from the and burning eyes, and can fade
settings menu, which means that the swimsuits.
buttons and test regimes are kept the
same at all times. Water with high pH, or alkaline water,
Both free and total chlorine levels for causes calcium in water to combine
0-10 ppm are covered by the DPD XF and with carbonates in the pool, forming
XT tablets respectively, and the tests work scaly calcifications that trap dust and
in exactly the same simple way as the dirt, and turn black over time.
original 0-5 ppm range.
The second new feature is the built-in A pH test takes only seconds using
water balance calculation. This converts chemically treated paper strips that
results from the usual chemical tests react to the acid or alkaline levels in
without the need to manually re-enter the the water. Dip one end of a single
data, greatly speeding and easing the strip into the pool, wetting the paper,
process. Recommended ideal conditioning and depending on the result, adjust
agent parameters are then provided to aid the necessary chemicals to bring the
swimming pool maintenance personnel. pH to the ideal level. The key here is
Complete Pools Controls TAP the level of accuracy needed and the
Computerised Water Analysis will be on requirement to step up to a more
show at SPATEX offering Pooltest 25 accurate testing system.
The market for regular and competent photometer from Palintest linked via a USB
testing of water quality continues to attract cable to the new TAP analysis system. The
new products and new developments, system consists of a customer
which cover the whole range of management database capable of storing
sophistication for the private pool owner pool and spa details. The innovation is the
TEST AND
to the demands of a commercial pool. split second prognosis generated once the
A range of easy-to-use testing kits from test results are downloaded from the
TABLET OPTIONS
Golden Coast called ‘Insta-Test’ uses pre- Pooltest 25.
formulated test strips contained within a The portable pH PAL tester is ideal for TEST STRIPS
moisture-proof plastic canister. Simple to monitoring pH levels in swimming pools The basic three-way pre-formulated test
use with instant results, the and spas without the need of strips measures free sanitizer, pH and
user just swirls the test litmus paper. Testing your pool total alkalinity at a glance. The results
strip in the water with the pH PAL, then promptly will indicate whether the water is in the
and reads the correcting it by using the proper range or needs attention. The
levels off appropriate chemicals, makes it test is so easy that regular use is no
against pre- more comfortable to use and pain at all. Test strips on the market will
graduated saves money. test everything from Baquacil to nitrate
scales printed The pH PAL tester is a and salt levels.
on the container. reliable, robust and easy to
Two kits are use instrument that indicates TABLETS TESTS
available with 50 pH over the range of 0 to Liquid and tablet test kits use a
strips in each pack: 14pH with a resolution chemical called DPD as the indicator to
the Insta-Test 3 of 0.1pH and an measure free chlorine. High levels of
which tests for free accuracy of combined chlorine, or chloramines, can
chlorine, bromine, as ±0.2pH. cause false positives when using a DPD
well as pH, alkalinity test for free chlorine. Low to moderate
and water hardness, and levels of combined chlorine is
the Insta-Test 5, which neutralized in most DPD kits.
covers all the above and also Chloramines do not react with
tests for total chlorine and
TOP: Palintest 25
syringaldazine. The liquid or tablet kit
total hardness.
Professional Plus unit – a
may show there is some significant level
The Pooltest 9 and 25
balanced water calculation
of free chlorine present when the test
Professional Plus units from Palintest
function has been added
strips show that there is no free chlorine
support the new DPD XF and XT
ABOVE: Certikin’s PC 9 in 1 pool tester
in the water.
extended range chlorine test tablets. A
– ideal for operators of all sizes of pools
Visit our website at www.swimmingpoolnews.co.uk FEBRUARY 09 swimming pool news 83
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