SPS BUSINESS NEWS
GIVING POOLS EXTRA SPARKLE
T
he most important feature of any swimming pool is that the water must be 100% safe at
all times, writes Chris Carr, a former president of the Institute Of Swimming Pool Engineers. In order to ensure that this is the
case, satisfactory filtration with correct sanitation, monitored by accurate water testing is absolutely essential. Whilst a typical swimming pool filter unit may produce excellent results on its own, there are times when it could do with a little help by means of flocculation. This is especially the case when a pool may be opened after a winter closure or other times when the pool may have had excessive use, or been contaminated by fine debris causing the water to appear dull or possibly cloudy. Today, the standard for quality
of swimming pool water in the UK is set by the: Pool Water Treatment Advisory Group (PWTAG) and the
ISPE PRESIDENT – COLIN DAY with Plastipack’s R&D Manager: Tim Fielder & Assistant: Alex
current standard for turbidity (clarity) published by them is: 0.5 NTU (Nephelometric Turbidity Units). It is vital that this standard is adhered to at all times to ensure the health safety of the bathers using the pool.
CURRENT STANDARDS So how should you ensure that the
correct clarity is maintained, I hear you ask. Firstly, look at the pool water, can you see the bottom clearly in the deepest area? Does the water look dull or cloudy? Beyond that; it is a good policy to
regularly test the water turbidity as it is just as important as checking the pH and chemical levels. So it would be well worthwhile to invest in some reliable and accurate test equipment. Today there are some excellent
products available for testing pool water clarity and resolving any problems that may arise. If the water turbidity is outside the standard set by the PWTAG then a suitable flocculent
is the most practical way to resolve the problem. But how well does the testing equipment and flocculent work? So we decided to put it to the test. Here in the UK, we are fortunate to
have the largest and most successful swimming pool cover material manufacturers based down in sunny Sussex, namely Plastipack Ltd. It is impressive to learn that Plastipack supply swimming pool cover material to over 50 countries worldwide, and as far afield as Brazil to the west and India in the east.
VISUALLY GOOD Plastipack have made a massive
investment in testing their cover material products and currently they have five identical test swimming pools on site at their factory in St Leonards on Sea. Plastipack’s research and development manager – Tim Fielder who was only too happy to assist and he agreed to arrange for daily turbidity testing on two of their test pools.
JOLLY GEL is proven to make pool water sparkle.
50
OCTOBER 2019
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