I have decided to use magnesium salt in my pool instead of normal sodium chloride. I wrongly thought that I just replace the normal salt with magnesium salt and because the pool shop advised to add 80kg of salt I have added 75kg of HyClor Mag Salt. I believe that is three times the recommended dose and now the pool has gone a green/brown colour.
Any advice on how I can fix this issue. A search of the web has only provide vague references to adding too much magnesium.