The circulation/filtration system consists of a circulating pump & filter; the pump moves the water through the system. The filter removes small particles, which if left in the water would turn the water turbid. It's important to follow the manufacturer ...

Although they belong to the same chemical family, there are some differences between chlorine & bromine. When you dissolve the Fi-Clor Spa Chlorine Granules in your spa they produce hypochlorous acid; this is the active compound that will kill the bacteria & other unwanted pollution introduced into your spa. The dose rate is 2gms per m 3 (220gall) to increase the free chlorine 1mg/l (ppm). Maintain the level at 2-5mg/l (ppm). See pack for full details. As the chlorine does its job killing the bacteria it can form other compounds called combined chlorine (chloramines). These compounds have no killing power & are, in fact, a nuisance. They need to be removed by periodically shock dosing the pool with Fi-Clor Spa Non-Chlorine Shock. Finally, the chlorine level could be decomposed by sunlight in outdoor spas, but to prevent this there is a stabiliser called cyanuric acid built into Fi-Clor Spa Chlorine Granules. ...

The level of calcium found in the water used to fill your spa depends on the area where you live. You will probably know the likely calcium hardness of the local mains water. Some test kits will enable you to determine the calcium hardness levels of the mains water or in the spa by reference to the total hardness bar on the strip. The ideal level depends on the type of spa shell you have: In acrylic spas calcium hardness should be a minimum of 175mg/l. In tiled spas the minimum level should be 250mg/l This should provide sufficient calcium to satisfy the water ...

Just like your bath, grease & body fats can collect at the waterline, which not only looks unsightly but can prove to be a breeding ground for bacteria. It is good practice to clean this off regularly using Fi-Clor Spa Surface Cleaner. This is specially formulated to clean away body fats & grease easily & quickly, & can also be used to clean the spa interior when it is periodically drained before it is refilled with fresh water. ...

Fi-Cor Spa Shock contains approx 15% more available chlorine than standard calcium hypochlorite. It dissolves very quickly to form free chlorine to kill bacteria & break down organic contaminant in the water that cause eye sting & bather discomfort.

When filling your spa for the first time (commissioning) or when refilling after it has been empty for a period, it is strongly recommended that a shock chlorination should be carried out on the cold fresh water. Fi-Clor Spa Shock are ideal products for this purpose as they are unstabilised chlorine donors & will deliver the maximum effectiveness.

The free available chlorine level should be taken to either 25mg/l (ppm) for a minimum of two hours, or 50mg/l (ppm) for a minimum of one hour.

While the spa is being chlorinated to these high levels, the water must be allowed to flow to all parts of the system, regularly monitoring the chlorine residual to ensure that it does not fall below the specified level at any time. Where an air blower is fitted, it should not be run for the first 15 minutes to minimise the formation of aerosols (fine spa water mist).

During shock chlorination, the p H should be maintained within the range of 7.2

...

Your spa water should always look clear, bright & inviting. If, for any reason, it doesn't, it can usually be brought back to life with Fi-Clor Spa Water Clarifier. This assists the efficient removal of small suspended particles, which in sufficient quantity will cloud the water. ...