At many outlets more water flows than the same service would need — and because the water and heating bill does not separate it out, nobody notices. An audit shows what potential your building has; the change achieved we then evidence by measurement.
In our case-study buildings we measured water savings of 13.65–24.5 %.
We keep the whole chain under one roof — the audit, supply of certified R.C. Mannesmann technology, the fitting and the subsequent measurement of savings. First we establish where and how your building can genuinely save — then we design, fit and evidence the result.
We collect data in our own application reAUDIT — you order the scope you need: a basic assessment, a plumbing survey, or measurement of pressures and consumption.
Which products go where for optimal function and long service life, plus a saving calculation and a quotation.
Supply and professional fitting of the right technology from across our range.
Evidenced savings (cost · m³ · kWh · CO₂) — material for a report, for certification and for warranty claims.
Water and heat have been getting dearer across Europe. How much, in your market and from which source, is set out in our price overview — national figures, not ours, with the method written down. Consumption you cut straight away, with no building work. We measure the flow at every draw-off point before fitting and after, and hand you the difference in a report. The expected saving we calculate in advance (an estimate); the actual saving we evidence by measurement. How the prices moved →
Before = the lowest flow class the European product standards recognise: for a basin tap, class Z under EN 246 (aerators without a flow regulator, measured at 3 bar); for a shower tap, the lower bound of class A under EN 1112. The aerator or shower head actually fitted is usually of a higher class — which one, we establish by measurement during the audit. After = the flow once a regulator is fitted, with comfort preserved. For basins this is the Full Comfort range: an average flow of 3.6 l/min that never exceeds 4 l/min; under EN 246 a regulated flow stays constant from 2 to 5 bar. The shower flow of 7 l/min corresponds to class ZZ under EN 1112. For nurseries, kindergartens and hotels we choose a higher target flow. The actual figures we measure at every draw-off point in your own building.
Every figure is evidenced by measurement at a signed case study. These projects are in Czechia. The saving for your own building we calculate by audit (an estimate) and then evidence by measurement.
Every segment has different priorities — OPEX, hygiene, public procurement, ESG. For each we have targeted case studies.
OPEX on water and energy, ESG reporting, guest comfort. No compromise even at low pressure.
● BHP 30 % of costs · ArcadeWater hygiene and safety, legionella prevention, a laminar stream with no aerosol.
● Trutnov HospitalHomes and facilities: lower running costs with no effect on residents' comfort, long service life.
● Jablonecké Paseky · Velké Hamry · Cvikov care homesBudget savings, public procurement, evidence. The client confirmed the result to us in writing.
● Pilsen pilot ≈ 24 900 € a year (610,375 CZK) · signed by the clientCSR / ESG, staff comfort, running-cost savings in office buildings.
Sites and plants: water, energy and sanitary areas at scale — including a plumbing survey and a replacement plan.
Our strongest card. Real projects, measured savings, signed confirmations from the public sector. The projects are in Czechia.
Savings confirmed by measurement across the building — with no effect on operations or comfort.
We choose the specific technology only once we have the audit results and know the conditions of your operation.
Basin aerators and regulators, shower regulators, heads, hoses, accessories.
WC adjustment, WC stop technology, dual-flush retrofit, fill valve.
The urinal, the fluid, the valve, fitting and servicing — a complete odour-free operation.
Legionella prevention, a laminar stream, flush valves against stagnation.
Odour in sanitary areas — dealt with at source, not masked with fragrance. It follows on from urinals and hygiene.
We don't deliver the water and energy saving only as an operating benefit — we deliver it as data you can evidence and put into your reporting and certifications. rewater is your enabler, not your certifier.
We establish the saving potential in your building and prepare a quotation with no obligation.