주요 사실

• Produces near-pure water with EC close to 0.0 mS/cm and pH typically 6.0–7.0
• Removes chlorine, chloramines, heavy metals, and dissolved salts from tap water
• RO water has zero buffering capacity — pH swings are more sudden and harder to stabilise
• Cal-Mag supplementation is essential when using RO water (no baseline Ca/Mg)
• RO systems waste 3–4 litres of water for every 1 litre of purified water produced
• Essential for growers in areas with hard water (EC above 0.4) or high sodium content