About Us Canplast is an independent Swiss company, active in water management since 1964. Now present in the three language regions of Switzerland, our company specializes in the supply of pipes and parts for sewers, manholes, pumping stations, residual water pretreatment installations, stormwater management, Canadian wells, ventilations and any other special works, in polyvinyl chloride (PVC), polypropylene (PP) and polyethylene (PE) Our business: • canalizations • water treatment • rainwater