pH is an abbreviation of ‘power of hydrogen’ and is a critical factor in the treatment of pool water. pH is a scale of acidity to alkalinity from 0 to 14. Substances that aren’t acidic or alkaline (that is, neutral solutions) usually have a pH of 7. Acids have a pH that is
Method Statements (or, Work Instructions) These are step-by-step, documented procedures that explain how to perform tasks safety. It’s a guide or set of instructions for doing a task right, first time, every time. They are intended to be used by those people actually carrying out the work, therefore, they should be as user-friendly as
Free Chlorine If chlorine is the biocide in use at your pool (rather than bromine), there should always be enough free chlorine in the pool to minimise the risk of infection. The recommended range is 1.00 – 2.00mg/l for most types of pool. Pools using stabilised chlorine need a bit more 2.50 –
People are involved in all aspects of work. Human factors are concerned with three interrelated areas: What people are being asked to do (the job and its characteristics); Who is doing it (the individual and their competence); Where they are working (the organisation and its attributes). The job Tasks should be designed in accordance
If a pool is contaminated with faeces, the pool operator must decide quickly on an appropriate course of action in order to prevent any possible illness in users. This is particularly important with diarrhoea, which may contain the chlorine-resistant organism cryptosporidium (‘crypto’). So it is crucial to be prepared. It is also important to do everything
Deciding on Actions to Control Risk Completing the risk assessment is a means to an end, not the end itself. It’s an input, not an output. If, after conducting a risk assessment, new or improved controls are required, their selection should be determined by the principle of the hierarchy of controls, i.e. the
The most common infections spread in pools and spas are gastrointestinal (e.g. cryptosporidium and viruses) and skin rashes (bacteria mainly). Blood and vomit are unlikely to cause illness, because they are less likely to be infected than faeces and skin and pool disinfectants should kill any bugs that there are, provided disinfectant residuals and pH values
What are Hazards? Anything that may cause harm, such as chemicals, electricity, working from ladders etc. Some hazards are easy to identify (an open container of a corrosive substance), others are not easily identifiable. This can be because the harm that some hazards cause is not immediate, but occurs instead over a long period of
It’s important not to overload a pool with pollution. Since bather are the main source of pollution, the numbers using the pool on a daily basis should be controlled. In order to calculate the total daily bather load the following formula should be used: 25 to 50% of the instantaneous bather load multiplied by
Who is responsible for safety and health in the workplace? All workers are entitled to work in environments where risks to their health and safety are properly controlled. Under health and safety law, the primary responsibility for this is down to employers. Workers have a duty to take care of their own health and
It is important that pool operators do not over load a pool with bathers. It makes it difficult for lifeguards to spot people in trouble and it also has a negative impact in the quality of the pool water. Pool operators need to establish two different types of bather load: Instantaneous bather load Total daily
Society exerts pressure through three overlapping and interacting spheres of influence: moral, legal and financial. Moral Morals are the codes of conduct, or rules of behaviour imposed by a society about what is right and wrong. For people to be killed, or seriously injured, or to suffer illness because of work is
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