Precast watertight concrete element

WPM® Precast Watertight Concrete Elements – Elevator Pit & Pump Sump

WPM® precast watertight elevator pits and pump sumps simplify below‑grade concrete waterproofing. These monolithic, factory‑produced elements use crystalline admixture and integrated WPM® metal‑sheet waterstops to form leak‑proof joints with floor slabs. Tested at TalTech to resist 5 bar pressure with less than 14 mm water penetration. Durable, installation‑ready solutions for underground structures. Made in Estonia.