Tag Archives: Sanitisation

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Pool equipment: Pumps, Filters, Sanitisation and more

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There is a bewildering range of pool equipment to go with your new pool. From heating to robotic vacuum cleaners, the array of technology options to perform similar functions can be overwhelming. We advise clients of our reasoning and brand choice behind each recommendation as it can get a little confusing for new pool buyers.
Always choose pool equipment that will match the pool you will be constructing and ask for as much information as you can about this equipment from your designer.
Basic pool equipment explained (essential)
Our detailed proposals explain the features and benefits behind each equipment option we recommend. We encourage customers to ask questions about our recommendations and the alternatives available.



Media Filters (sand, glass, zeolites, diatomaceous earth)

We could write for pages on the pros and cons of the various filter media. Needless to say we will recommend the right media to ensure your pool is as low maintenance and energy efficient as possible. Sand and diatomaceous earth filters are waning in popularity as they require more frequent back-washing to waste (thus using more water) as well as more regular replacement (Approx. 5 years). Recycled glass is gaining in popularity as it requires less back-washing and rinsing and can, in theory, be used for ten years or more.

Water pumps


Water pumps are very important, they make the system run efficiently. Always ask the pool builder for the right type and size of your pool pump.

Sanitisation systems and disinfection methods


Salt water chlorinators – this technology will create its own chlorine whilst the filter is operating by using electrolysis to convert sodium chloride (salt) into chlorine.
Chlorine or bromine dosing – sanitises against bacteria and algae. Dosage should be applied in measured amounts according to demand (organic load) on pool.
Automated Chlorine dosing – automatically tests your pool water and administers the precise amount of sanitiser required. Saves on overdosing and lessens the need to shock pool due to  sanitiser levels falling too low.
Ionising systems – use a low voltage current across copper and silver bars. The Greeks knew that water kept in copper pots (or with silver coins) remained pure and wasn’t susceptible to algae growth. Silver ions act as a disinfectant and copper ions kill algae. However an ionised pool still requires an oxidiser for effective sanitation so most manufacturers recommend chlorine.

Ozone generation systems

Ozone generation systems to most people’s surprise have actually been around for many years and are one of the most effective disinfectant / oxidisers on the market – used more often in commercial situations overseas. Smaller domestic version are becoming available as the technology improves. Ozone is created from oxygen via one of three methods. Unfortunately ozone is toxic and so requires compressors or other methods to force the ozone into the water as ozone is not very water soluble. The upside of this is there are less chemicals used in maintaining sanitisation. Ozone kills bacterial rapidly but usually needs a little chlorine or bromine to keep working in the pool while the system is not operating. Ozone does not effect pH nor contribute to TDS (Total Dissolved Solids). Ozone gas decomposes to form oxygen and is a very effective bactericide.

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