Regarding maintenance, the grey water system should be cleaned at least every five years – it should be drained and washed down with suitable cleaning products removing all solids.

 

The grey water system was built to be self-backwashing so its maintenance is minimal. However the facility’s maintenance team has to change the pre-filters once a week which should only take half an hour and does not require a specialist.

 

The pre-filters are reusable so a spare set is loaded into the containers and the dirty pre-filters are taken out and washed during the week so that they can be used again the following week and in return this keeps costs low.