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RUNNING A POOL "THE BASICS"


Running a swimming pool is quite simple once the basics have been grasped. The main concerns in operating a pool are the
CHEMICAL BALANCE and having the correct FILTRATION. With both these correct factors, your pool water will be safer, more comfortable and clean.


Chemical balance in pool water is essential in order to eliminate the bacteria and other containments. If the balance is correct it will also cut down the build up of scaling, staining and lower the amount of corrosion to both the walls and equipment.


There are four main tests that should be carried out on a regular basis


Chlorine, pH, Stabiliser, Alkalinity and Salt


These are tests that Poolminders Pool & Spa will carry out on regular services as standard to help maintain your pool and its water


Chlorine is used to control bacteria in water. The health department recommends that this level should be kept at least 2ppm in a pool, in order for it to be safe for swimmers


pH is a measure of the acidity of the water. It is important to keep this level between 7.4 and 7.6 as chlorine will work most effectively at such a pH. pH is also important for the maintenance of the pool surface. A very low pH can cause powdering, bleaching or etching of your pool surface, whereas a high pH can cause cloudiness and also a build up of scale on your surface and through the filtration pipes


Stabiliser is a product that is used in your water to lower the deterioration of chlorine due to ultraviolet rays from the sun. This level should be kept around 40 – 50ppm all year round. If this level of stabiliser drops below to low it will allow the chlorine in your water to disperse rapidly, allowing the water to be unsafe


Alkalinity is a measure of both the acidity of the water and the total dissolved solids, therefore giving a reading of the buffering affect (corrosiveness) of the water in your pool. In fibreglass and Vinyl lined pools the alkalinity should be kept above 80ppm and on concrete pools above 110ppm. Some concrete pools that are painted should be kept slightly higher at 140ppm


Salt levels are essential to keep at the right level if your pool has a salt chlorinator. Depending if your pool has a Low Salt chlorinator this level should be kept around 4500ppm – 5500ppm and a regular Salt Chlorinator, which are usually units that are over 10 years old 7000ppm – 8500ppm. If the salt level drops below these levels, your salt cell will deteriorate rapidly. As they say prevention is better than cure, as Salts cells don’t come cheap. Its far cheaper to have your salt level at its correct level than replacing cells all the time. An average cell life should be between 5 – 7 years but if the salt level is not correct, you can easily halve that amount


FILTRATION


Along with chemical balance, filtration is equally important. Without it the pool will become cloudy and eventually green, irrespective of the water balance

There are a number of different types of filters that we supply. These include: Sand Filters (Most Common), Diatmatious Earth Filters and Cartridge Filters

All three providing they are working correctly provide sufficient filtration for your home pool. However, they do provide different levels of filtration and amounts of work to maintain them

The table below is an idea of the main differences below:

Filters Lifespan of filter media filtration work involved

Filters Lifespan of filter media filtration work involved
DE Filter
5 8 years
5 Microns
1 hour per month
Cartridge
2 4 years
11 Microns
20 mins twice a month
Sand Filter
4 6 year
18-20 Microns
 
3 mins twice a month
 

We offer a filter cleaning service for DE & Cartridge Filter Elements, Which we acid bath them that's removes all the dirt and scale which builds up in them and inhibits the filtration process. Also if your pool has a Sand filter, We also have a sand changing service

All filters must be run for enough time in summer to turn your pool water over twice per day. This is usually 8 hours per day in an average backyard pool. In winter you can cut this down to 4 hours per day , but the longer you run it the better the water quality will be

All filters should have a running pressure of 40kpa 70kpa . If above that they may need to be cleaned. If after cleaning they still don't show the correct pressure consult us as the filter elements may need professional cleaning or to be replaced or if you have a sand filter, the sand media may be worn and needs replacing.

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