7 Critical Do's & Don'ts for Tube Settler Operation & Maintenance

Key Considerations

1. Installation Angle
   ✓ DO maintain 55-60° tilt (optimal settling efficiency)
   ✗ DON'T exceed 65° – causes sludge roll-up

2. Flow Velocity
   ✓ DO keep 0.5-1.2 m³/m²/h (varies by turbidity)
   ✗ DON'T allow >2.5 m³/m²/h – triggers particle carryover

3. Material Selection
   ✓ DO use UV-stabilized PVC for outdoor units
   ✗ DON'T choose ABS plastic if pH >9.5

4. Cleaning Cycle
   ✓ DO backwash every 72-120hrs (based on SS load)
   ✗ DON'T use high-pressure jets (>3 bar damages lamella plates)

Failure Case Study
A dairy plant using 70° tilted settlers saw 42% efficiency drop. Correcting to 58° + installing 50mm sludge hoppers restored 91% TSS removal.