A. In most cases it is possible to use the same water for a number of years.
Effective backwash & rinse procedures are multifunctional. You are removing the heavier debris from the filter, and you are replenishing the water in your pool. The only time pool water would need to be replaced in its entirety is if properties such as Total Dissolved Solids and Metals in your water reached levels which prevent the chlorine from working effectively and the water is constantly discoloured or cloudy.
Taking a water sample to your BioGuard® Dealer will pay dividends, because through their easy preventative approach to pool care, problems such as these will be detected and dealt with as necessary.
A. BioGuard’s systematic approach to pool care, through our 3-Step programme or SynergyTM System, are designed to make pool water management simple, economical and less time-consuming. By using our systems the likelihood of your pool turning green is greatly reduced. Step number 1 below is applicable.
A. In the majority of cases, most pools have the green effect due to presence of algae, although metals can also be the cause. Assuming algae is the cause and chlorine is the sanitiser, the following procedure should recover the pool quickly:
A. Silica sand is used in sand filters and is very hard wearing and the life is not as much dependent on the breakdown of the sand but more due to the buildup of trapped debris on the sand particle. A regular (annual) chemical clean of the sand will prevent the buildup of oils, greases, scale and general debris. The best way of gauging whether the sand is due for replacement is by monitoring the filter pressure. Should the pressure remain in the red even after an effective backwash procedure the chances are that the sand needs to be replaced.
A. The calculation is as follows: Length(m) x Breadth(m) x Average Depth(m) x 1000 in litres. (Rectangular Pool)
A. In simple terms pH is a measure of how acidic or alkaline the pool water is. The pH range can be applied to any liquid and is a logarithmic scale of 0 to 14. Ie. A pH of 6.5 is 10 times more acidic than a pH of 7.5, whereas a pH of 5.5 is one hundred times more acidic than a pH of 7.5. The same applies to the reverse side of the scale. The comfort of the water and the effectiveness of the chlorine is governed by pH. Refer to water balance for more information.