PM Rain

Overview

Overview

The Grundfos PM Rain is an interconnect device that allows you to utilise harvested rainwater for toilet, laundry and garden applications, with the added benefit of mains water back-up.

The PM Rain is used together with a Grundfos pump. The pump is only started when rainwater is being drawn from the rainwater collecting tank. It does not operate when switched to mains water supply.

The PM Rain automatically starts when a water demand is detected, for example the flushing of a toilet or filling of a washing machine, and will switch over to mains water supply when the rainwater tank is empty or in case of an electrical failure.

The PM Rain eliminates the need for a level sensor in the tank, which drastically reduces installation time and costs.

Features and benefits

  • Easy and quick installation
  • no regular maintenance required
  • dual non-return valve for backflow prevention
  • suitable for above- and below-ground tanks
  • automatic distribution between rainwater and mains water.

Applications

Typical applications are rainwater supply systems in

  • single-family houses
  • summer houses and weekend cottages
  • horticulture and gardening.




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