Posts Tagged ‘bromine’

A Guide to Water Balance For Swimming Pool and Maintenance

Thursday, June 4th, 2009

Tip:To make efficient use of your swimming pool chemicals, managing good water balance is the main factor

Before adding swimming pool chemicals it is important that you read and familiarise yourself with the workings of your spa / pool and support equipment. A clear, clean fresh spa or pool is only possible if you have good filtration and clear water flow

The first step in treatment is to ensure good water balance, which will create the right conditions for bather comfort, chemical efficiency and equipment protection. There are three major factors affecting water balance, they are pH, total alkalinity and calcium hardness

Calcium hardness

Hardness is the measurement of calcium salts in the swimming pool or spa water and this will vary depending where you live. Low calcium hardness levels (soft water) can lead to corrosion of the materials of construction. Hard water (water high in calcium) can lead to limescale foriming in your pipes and equipment
Calcium Hardness Guide Measures
•    Ideal calcium hardness levels are between 100 – 200 ppm (mg/l).
•    When the level is below 75 ppm (mg/l), apply Hardness Plus
•    When the measurement exceeds 200 ppm (mg/l), apply Scale Inhibitor.

pH Measures

pH can range from 1 to 14 where 1 is very acid and 14 very alkaline It is essential to maintain spa water within the 7.2 – 7.6 range which, because it is slightly alkaline, will protect equipment from corrosion and provide the optimum conditions for the people enjoying the pool or spa and also ensures  the best sanitiser efficiency.
•    Ideal pH level for spas is between 7.2 – 7.6.
•    When the level is below use pH Plus
•    When the measurement is greater than 7.6 apply pH Minus
Note
pH can be tricky to manage in spas as the system water turns over fast, is very agitated and is at higher temperature than swimming pool systems. [All these factors

pH rises can be caused by this which causes chlorine products such as chlorine shock to lose effectiveness. Much higher doses of chlorine sanitisers such as will then be required. avoid this problem by using Bromine. Bromine works effectively over a wider pH range than chlorine Unlike chlorine, bromine keeps working in a spa for longer and so helps you minimise your spa chemicalsuse

Total Alkalinity

pH Changes are buffered by total alkalinity If TA levels are too low the pH will fluctuate widely.
If Total alkalinity is too high then water clarity can be affected but it also makes it difficult to make changes to water pH levels
•    optimum Total Alkalinity is 100 ppm (mg/l) When it is below 80mg/l use Alkalinity Plus
•    When Total Alkalinity is above 140mg/l remedy it with pH Minus to reduce it
You should definitely check your water balance on a regular basis as it is the basis for your other chemical treatments

Use Test strips to measure your water balance, they are very easy to use

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