A greywater system starts with the source water and the intended reuse. Before comparing equipment, define what can be collected at your property, what water quality is required and who will operate the system.
Define the water sources
Identify the streams you intend to collect, their approximate quantities and the products or substances entering them. Do not treat all household or commercial wastewater as interchangeable. Existing plumbing and the ability to separate streams affect the options.
Define the reuse
Explain where the treated water would be used and what restrictions apply. Clear water is not proof that it is safe for a particular use. Ask a qualified designer to verify the treatment, monitoring and approvals required for your property and intended application.
Compare operation as well as equipment
Ask about inspection, cleaning, consumables, energy, sampling and service response. Include the responsibility for maintaining the required water quality. Savings depend on the usable quantities, tariffs and operating costs; there is no universal annual saving.
Prepare a useful supplier enquiry
- Property type and location.
- Water sources and available quantity estimates.
- Planned reuse and existing plumbing.
- Available space and access for maintenance.
- Existing information, constraints and project timing.
Read the Hebrew greywater guide or greywater solution page (Hebrew).