Potable water use optimisation
Potable water use optimisation is about reducing how much drinking-water-quality supply the project needs. That happens through efficiency first, then by moving suitable uses onto a non-potable source, while bathroom specifications, irrigation and plant-room space can still change.
Send us your drawings and any water target already in the brief. We'll confirm the scope and the fee.
This page is part of Water Design.
Send the drawings, project address, occupancy, fixture schedule if you have one, and any rating or planning overlay already in the brief.
This is design advice about demand, not a statutory rating. Detailed hydraulic calculations and specifications stay with the hydraulic consultant. We coordinate with that package; we do not replace it.
Typical levers include fixtures and fittings, using Water Efficiency Labelling and Standards (WELS) as the public selection language; cooling-tower and process demand; irrigation hydrozones; leak detection and metering; and which end uses can shift to rainwater or another non-potable source. Current WELS product information sits at waterrating.gov.au. We do not invent star requirements here.
Reducing mains demand can feed a Green Star Water Use assessment. It does not by itself meet that credit.
A water target promised against an “industry standard” fixture schedule is still a guess. The number moves when sanitaryware, tapware, cooling and irrigation are actually specified.
Irrigation is often the hidden load. Hydrozones and planting are cheaper to adjust before the landscape package freezes than after.
Connecting rainwater to toilets, laundry cold water and irrigation can reduce mains demand. On a Victorian planning assessment, that reuse can also support stormwater-volume performance. That is useful design advice, not a national rule, and it is not the same as finishing the rainwater system. See rainwater harvesting and reuse.
We do not guarantee utility-bill savings or a litres-per-person result.
[Sound familiar]
That target is still a guess. The number moves when sanitaryware, tapware, cooling and irrigation are actually specified.
Irrigation is often the hidden load. Hydrozones and planting are cheaper to adjust before the landscape package freezes than after.
Connecting rainwater to toilets, laundry cold water and irrigation can reduce mains demand. That is design advice, not a finished rainwater system.
Send the building, occupancy and any water target already in the brief.
We estimate demand across fixtures, process water, cooling and irrigation.
You receive a demand estimate and ranked options. Timeframes are confirmed at quote.
No. It is design advice about demand, not a statutory rating.
No. Detailed hydraulic calculations and specifications stay with the hydraulic consultant. We coordinate with that package.
It can feed a Green Star Water Use assessment. It does not by itself meet that credit.
We use WELS as the public selection language for fixtures and fittings, and current product information sits at waterrating.gov.au. We do not invent star requirements.
No. We do not guarantee utility-bill savings or a litres-per-person result.
Send us your drawings, the project address, and any water target already in the brief.
