surespa Alkalinity Increaser - 1kg
Maintaining the Total Alkalinity within the correct range is the key to water balancing when you are using either Chlorine or Bromine as your sanitiser. Low Total Alkalinity will cause the pH to fluctuate widely and make consistent balancing impossible. Alkalinity that is too high will make it impossible to adjust the pH.
Always adjust the Total Alkalinity before anything else.
Maintaining the Total Alkalinity within the correct range is the key to water balancing. Low Total Alkalinity will cause hot tub water to become potentially corrosive and damaging to the equipment and acrylic surface, it will also cause the pH to fluctuate widely. If the Total Alkalinity is too high then it will be very difficult to adjust the pH of the water and the water will become scale forming and.
You should always adjust your Total Alkalinity before you adjust the calcium hardness or pH.
surespa Alkalinity Increaser should be pre-dissolved in a small plastic container filled with some of the warm hot tub water. Add a measured amount of the product, according to the table below, and carefully add the resulting solution to the spa whilst the pumps are turned on to aid dispersion.
Maintain a Total Alkalinity level of 80 - 120ppm in your hot tub.
|Size of your hot tub||To raise the Total Alkalinity...|
|10 ppm||25 ppm|
|1000 litres / 220 gals||14g||45g|
|1500 litres / 330 gals||27g||68g|
Alkalinity is a measure of the buffering capacity of the bicarbonate ions and, to some extent, the carbonate and hydroxide ions of water. These three ions all react with hydrogen ions to reduce acidity and raise pH. Alkalinity is normally given in mg/l as calcium carbonate (CaCO3) for all three ions.
|Active Ingredients||Sodium Bicarbonate|
surespa Hardness Increaser - 1kg£8.60
Calcium hardness is the measure of how much lime (calcium) is dissolved in your water.
surespa pH Increaser - 1kg£6.50
In addition to reduced sanitiser efficiency, symptoms of low pH in hot tub water include skin and eye irritation, excessive sanitiser use and potential corrosion of the pumps and heater with pitting or etching on the spa shell surface.
surespa pH Reducer - 1.5kg£7.70
Hot tub water with a pH that is too high can significantly reduce the efficiency of Chlorine and Bromine making your hot tub unsafe to use.
surespa pH Reducer will bring the pH down to the level required by your sanitiser and also help to avoid potential problems caused by limescale build-up.
eco3spa Natural Aromatherapy Crystals - 750g£10.85
Natural hot tub aromatherapy crystals with a minimum of 1% pure essential oils and dead sea salts.