Pool Chemical Advice
Are you having problems with your pool water? If so check out the problem and symptoms in the table below.
|Green / Cloudy Water / Slippery Sides||Algae||Shock dose with chlorine (see start up dose) and add Algaecide|
|Too much chlorine||Overdose||Allow time to naturally dissipate or buy a chlorine reducer|
|PH hard to control||Alkalinity low||Seek advice on how to raise total alkalinity|
|Can't maintain chlorine levels||Chlorine demand of water too high up start up, after holidays or due to excess contamination or neglect||Shock dose with chlorine (see start up dose). Repeat after 24 hours if necessary|
|Cloudy water||Poor chemical control or inadequate filtration||Clean cartridge, check chemical levels with Dip Test Strips and adjust if necessary (chlorine/PH). If problem persists buy a Pool Clarifier to remove small particles|
|Rough pool sides / edges||Scale formation due to high calcium levels in water||Ensure PH levels are correct using Dip Test Strips and use a Pool Scale Inhibitor to stop calcium precipitating out of water|
|No colour change on test strip dip test||Too high chlorine leading to bleaching of indicator pads (over 15ppm chlorine)||Check expiry date on Pool Test Strips. Wait for chlorine level to drop and re-test|
|Foaming||Detergent present from incorrect cleaning products or excessive algaecide use.||Reduce water level and top up with fresh water. Avoid domestic household cleaners.|
- Do not leave non swimmers / children unattended
- Do not overload the pool
- Avoid sitting on pool walls
- Do not allow diving in shallow water
- Do not use during thunder storms
- Do not use electrical appliances near water
- Use plastic rather than glass around the pool
- Have a First Aid Kit available for any accidents
- Read instructions thoroughly on each product/box before use
- When pre dissolving chemicals always add chemicals to water and not vice versa
- Never mix different chemicals in concentrated forms including these kit products but also with other products like bleach or weedkillers – a dangerous reaction may occur
- Always pre dissolve chemicals in a clean,plastic container in a well ventilated area
- Avoid spillages but in event of spillage clean up using clean receptacles anddispose in the pool. Flush cleaned spill areas with water
- Never use unlabelled chemicals
- Wash hands after handling pool chemicals
- Store chemicals well away from children and pets
- Store in a secure,cool and dry place
Allow 50gms of chlorine granules to 1000 gallons (4545 litres).
THE IMPORTANCE OF CIRCULATION AND FILTRATION:
Most above ground pools now include a pump and cartridge filter as standard.It is a combination of circulating water through the cartridge to collect suspended particles,together with good chemical water treatment,that helps you maintain clear, clean and healthy water. As a guide to running circulation,you should aim to "turn” the full volume of pool water through the cartridge once per day. Typically in most splash pools, using standard equipment,this is 4 hours per day (that the pump should be turned on).
WATER TESTING AND IDEAL POOL LEVELS:
Using ClearWater 3 way dip Tests you are able to quickly and accurately assess the condition of your water and make adjustments to chemical levels with the appropriate chemicals added where necessary. Test daily when the pool is in use and twice weekly when the pool is not is use.
|Free Chlorine||1 - 3 ppm*||*ppm = parts per million|
|pH||7.2 - 7.6|
|Total Alkanlinity||125 - 150 ppm*||*ppm = parts per million|
When using ClearWater Dip Tests follow the instructions on the bottle for best results being observant of the optimal reading times and always holding strips level (to avoid indicator pad colours mixing).
Normal Dosing - ClearWater Stabilised Chlorine Granules:
|POOL VOLUMES||INCREASE BY 1ppm (ONLY) CHLORINE LEVEL|
|1000 Gallons (4,545 Litres)||9 Grams|
|2500 Gallons (11,364 Litres)||23 Grams|
To ensure the ideal reading of 1 – 3 ppm is maintained it is advised to aim for 3 ppm to provide a useful "buffer” for fluctuating conditions such as bathing loads and hot weather. The rate of chlorine consumption can and does vary depending on different conditions and chlorine will be consumed even when there is no swimming (i.e. by sunlight or by algae). Because of this,the only way to be sure that there is chlorine present in the water is to test regularly.
pH – The pH scale of 0 – 14 measures acidic or alkali conditions respectively.The middle reading of 7 is neutral, so pool water with a pH below 7 is acidic and pool water with a pH above 7 is alkaline.
For above ground pools the ideal pH level is slightly alkaline between 7.2 – 7.6, ensuring plant protection and bather comfort are maintained (the pH level of the eye is consistent with this level).
|pH LEVELS||SUMMARY OF LEVEL|
Skin / eye irritation
Reduces chlorine effectiveness
|7.2 - 7.6||IDEAL LEVEL|
Plant corrosion especially metals
Unpleasant smells and bather discomfort
Chlorine quickly used up
If the pH of your pool water is below 7.2 then use ClearWater pH Plus to increase it,using the application instructions on the bottle.
|POOL VOLUMES||INITIAL START-UP DOSE||WEEKLY DOSE|
1000 gallons (4,545 litres)
2500 gallons (11,364 litres)
Use pool preparations when cleaning areas around swimming pools since household cleaners often contain phosphates which nurture algae growth or detergents which cause foam.
|TYPICAL POOL SIZE||VOLUME UK GALLONS (US GALLONS)||VOLUME (LITRES)|
10 ft diameter x 30 inches deep
|800 UK Gallons (961 US Gallons)||
12 ft diameter x 30 inches deep
|1183 UK Gallons (1421 US Gallons)||
|15 ft diameter x 36 inches deep||2240 UK gallons(2689 US gallons)||10,179 Litres|
|15 ft diameter x 42 inches deep||2720 UK gallons(3266 US gallons)||12,362 Litres|
|15 ft diameter x 48 inches deep||3038 UK gallons(3648 US gallons)||13,807 Litres|
|18 ft diameter x 42 inches deep||4203 UK gallons(5046 US gallons)||19,100 Litres|
|18 ft diameter x 48 inches deep||4661 UK gallons(5596 US gallons)||21,182 Litres|
|TASK||IDEAL LEVEL||PRODUCT||DOSE FREQUENCY|
|1 - 3 ppm (aim for 3)||ClearWater Stabilised Chlorine Granules||
Daily when pool in use to maintain ideal levels
|pH||7.2 - 7.6||
ClearWater pH Minus to reduce
ClearWater pH Plus levels to increase
|Weekly or as required to maintain ideal levels|