| 🏠 Assurance Home | 📊 KPIs | ⚠️ Diagnostics

🧭 1. Stage Purpose
- Separate gypsum solids from treated water
- Produce clear effluent for NF / IX downstream
- Concentrate solids into a manageable sludge stream
- Prevent solids carryover into membranes and ion exchange
- Stabilize overall system performance
📊 2. Normal Operating Envelope
- Feed Flow Rate: ___ to ___ GPM
- Surface Overflow Rate (SOR): ___ to ___ gpm/ft²
- Effluent Turbidity: < ___ NTU (target: clear)
- Sludge Blanket Level: ___ to ___ % of tank depth
- Underflow Solids (%): ___ %
- Polymer Dose (if used): ___ to ___ mg/L
- Visual: Clear overflow, defined sludge blanket, no solids escape
🟢 3. What “Normal” Looks Like
- Effluent is visibly clear