| 🏠 Assurance Home | 📊 KPIs | ⚠️ Diagnostics
🧭 1. Stage Purpose
- Remove sulfate by precipitating it as gypsum
- Reduce sulfate loading to downstream NF / IX systems
- Lower scaling risk in downstream equipment
- Convert dissolved sulfate into a removable solid phase
- Prepare water for improved downstream treatment performance
📊 2. Normal Operating Envelope
- Feed Flow Rate: ___ to ___ GPM
- Calcium Dose Rate: ___ to ___ lb/hr or ___ to ___ gpm slurry
- Reaction Tank pH: ___ to ___
- Mixing / Recirculation Rate: ___ to ___ GPM
- Effluent Sulfate: ___ mg/L target or less
- Visual: Light gypsum solids present, no heavy carryover, overflow reasonably clear
🟢 3. What “Normal” Looks Like