Do you have to replace Trulawn Zeolite?
Typically a replacement Trulawn Zeolite isn’t needed once it has been installed. It is essentially a ‘rechargeable’ product that becomes like-new every time heavy rain washes out the odorous component.
If odours occur this is likely due to not having enough infill installed, or because the infill has reached saturation point not due to the infill working incorrectly or because it needs replacing. Saturation point can happen in periods of dry weather. All that is required is hosing down of the affected areas with water.