News - EN

Legionella

2025-10-27 13:20
PRELIMINARY OPERATIONS
  1. Study of the hot/cold potable water production and distribution system
  2. Technical room inspection to identify the best treatment point, check for and locate softener, recirculation system, filters, and pumps.
  3. Calculation of the total system volume
  4. Evaluation of removal of terminal points in the system.
TREATMENT EXECUTION
1. «Preparation»
  • Turn off the boiler. Ensure the boiler has been off for at least 24 hours to avoid dosing the product into overly hot water.
  • Isolate the hot water recirculation system: Close the filling valves to isolate the system and, if possible, drain the pipes to be treated.
  • Remove all aerators from taps and water points subject to treatment.
  • Disconnect all washing machines, dishwashers, hot and cold beverage dispensers, ice makers, and similar appliances from water inlets.
  • Drain two-thirds of any storage tanks, if present.
2. «Preparation of the Rely+On™ Virkon™ Solution»
  • “Dosing”: Prepare the Rely+On™ Virkon™ solution according to the manufacturer’s instructions. A typical effective concentration is 0.002 for disinfection.
  • “Mixing”: Dissolve the powder in water using a suitable container to facilitate dosing into the storage tank or directly into pipes if no storage is present. If there is a storage tank, refill it fully after pouring in the Rely+On™ Virkon™ solution.
3. «Application of the Solution»
  • “Filling the system”: Pour the Rely+On™ Virkon™ solution into the storage tank and open the outlets to the system’s pipes. Ensure the solution reaches all parts of the system, including tanks and pipes.
  • “Recirculating the solution”: Activate the recirculation system (if present) to ensure the Rely+On™ Virkon™ solution circulates through all pipes and points of use.
4. «Opening the Taps»
  • “Taps and showers”: Open all taps and showers to allow the Rely+On™ Virkon™ solution to pass through them. Close the taps when pink-colored water and/or foam is seen.
  • “Points of use”: Ensure the solution reaches all points of use, including bathroom, kitchen, and common area taps, as well as laundry rooms and technical rooms if applicable.
5. «Contact Time»
  • “Wait”: Leave the Rely+On™ Virkon™ solution circulating in the system for the contact time recommended by the manufacturer, ideally overnight.
6. «Rinsing»
  • “Draining the system”: Drain the system of the Rely+On™ Virkon™ solution. The presence of pink water or foam indicates the presence of the product.
  • “Rinse with clean water”: Refill the system with clean water and circulate it through all pipes and points of use to remove any Rely+On™ Virkon™ residues.