Hardness & Scale
Depending on where you are located in the UK, water naturally has a certain level of hardness, which essentially means the volume/percentage of minerals, such as magnesium and calcium to name two, dissolved into it. In the UK, you will find a wide range of hardness levels from very hard in some areas to very soft in others and everything in-between.
Water needs to have a certain hardness level to it because soft water can be very corrosive, while harder water can cause limescale. Whichever side your water falls, you need to have a more balanced hardness level.
In any commercial environment, any spas with acrylic finishes should have water with a calcium hardness level of around 100 to 250 ppm, which is parts per million. However, if you have a hot tub or spa with a plaster finish, the water calcium level should be between 250 to 450 ppm.
SpaChem Trade produces a number of different water hardness increaser products as well as a few scale removers too. They are available in various sizes from 1tr & 1kg to 5ltr & 5kg so you should be able to find the correct volume for the size of the hot tub or spa you have and can be delivered anywhere in mainland UK and Ireland.
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