Download User Manual for the Gemini System

Pool Chemical Dilutions
Your Gemini Control Unit feeds hydrochloric (muriatic) acid to keep the pH of your pool in
the correct range. The acid should be diluted to suit the size of your pool as set out in the
table below.
Pool Size
Acid Dilution
Large (90,000L and over)
Full strength
Medium (20,000L-90,000L)
Diluted 1:5 with water
Average (10,000L to 20,000L
Diluted 1:10 with water
Small Pools or Spas (2000L to 10,000L)
Diluted 1:15 with water
Spas (less than 2000L)
Diluted 1:20 with water
IMPORTANT SAFETY MEASURES:
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Always add concentrated chemicals to water – not the other way around!
Don’t allow chemicals to mix – dangerous, highly corrosive fumes will be
produced.
Always wear protective clothing, footwear, gloves and eye protection when
handling pool chemicals to avoid injury.
If a spill occurs, wash the affected area with fresh water immediately and seek
medical attention.
Work in a well ventilated area and avoid inhalation of fumes.
Read and follow safety instructions on chemical drums.
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