28/10/2026
Meet the PDFD — Drainage and Seepage Tank by EDIBON.
A rectangular methacrylate-front tank that makes the invisible visible. Dye injection needles trace real flow lines through wet sand — so students don't just calculate seepage, they actually watch it happen.
What's inside the tank:
→ Aluminium back + transparent methacrylate front
→ Dye injection system for flow line visualisation
→ Sheet pile wall & mesh gates
→ Pressure measurement accessory
→ Pump with level switch
📐 17+ guided exercises covering:
✅ Flow net construction
✅ Darcy's Law verification
✅ Seepage through earth dams
✅ Seepage under sheet pile walls
✅ Quicksand behaviour
✅ Drain excavation using wells
✅ Uplift pressure on hydraulic structures
✅ Permeability vs grain size
✅ Stability of an earth dam..and more
Perfect for soil mechanics, hydraulics, and geotechnical engineering labs. If your students study seepage, flow nets, or Darcy's Law — this is the unit they need to see it, not just solve it. 🎓
🌐 www.3hands.me