The BL121 Swimming Pool Controller is an all-in-one system for automatically maintaining the pH and chlorine levels.
Chemicals
Spec of chemicals is
• Chlorine: Sodium Hypochlorite (available in 11–12% or 14–15%).
• pH Control: Sulphuric Acid (no more than 16% strength)
Example Data Safety Sheets
Chlorine - Sodium Hypochlorite
Brass Monkey - Guide to Auto Dosing System
Auto doser Guide v5 - Coming soon, updates to be made to how you calibrate your sensor
Auto Doser Guide v4 - March 2025