Water reuse · Resorts, hotels & campsites
Resorts, hotels with pools or landscaping, and campsites all produce recoverable wastewater. Caskade evaluates which part of the water can be reused, for what purpose, and finds the optimal solution by comparing manufacturer proposals for your site.
Up to 80%
in reuse rates achievable with modern technologies from specialised manufacturers. We compare proposals on tech and ROI for your site.
Payback as fast as 2 years
thanks to high reuse rates of specialised devices and our ROI comparison of vendor proposals
No need to install new tubing.
Separate tubing for regenerated water is not necessarily needed. Read more
On-site water reuse means treating wastewater streams and returning them to non-potable uses: toilet flushing, garden and golf irrigation, hard-surface washing, exterior cleaning and, in some cases, pool or laundry makeup.
Recoverable flow depends on seasonal occupancy, plumbing separation and peaks (weekends, high season, events).
A grid-connected resort and a rural campsite without sewer do not share the same economics: at the latter, replacing tanker haulage or reducing borehole abstraction is often the primary driver.
Resorts with pools, gardens and fairways see peak shower demand in summer, when irrigation needs are highest.
Hotels with gardens, terraces or spa facilities often combine steady irrigation demand with guest-room water use on the same site.
Campsites without sewer rely on tankers or boreholes, and seasonality makes cost per occupied night the most honest economic metric.
Water and utility bills in high season. Hotels and resorts with gardens, pools and laundry can spend half their potable water on services (toilets, irrigation, cleaning). When tariffs rise or contracts renew, recycling shifts from a sustainability project to an operating line item. The comparison needs your bills, not a brochure percentage.
Tankers and off-site haulage. Rural campsites and resorts without municipal sewer often evacuate wastewater by truck. In peak season the OPEX is recurring and predictable, often higher than it looks invoice by invoice. The calculation must include real frequency, seasonality and operational downtime cost.
Irrigation, gardens and golf. Landscaping and fairways concentrate demand in dry months, exactly when supply gets more expensive or restricted. Treated water fits here before demanding-quality uses, if the site water balance supports it.
Boreholes, allocations and source quality. On sites with their own wells, drought-related allocation cuts or water-quality non-compliance force action even without a local reuse mandate. Loop treatment reduces dependence on new abstraction; real cost includes civil works and operations, not just the treatment skid.
Greywater (showers, sinks)
40 to 45%
Guest showers and washbasins; highest recoverable volume, peaks at check-in and high season
Blackwater (toilets)
25 to 35%
All guest and staff WCs; treatable in a mixed plant with state-of-the-art treatment equipment
Laundry (washing machines)
10 to 18%
On-site hotel or bungalow laundry; often better as a dedicated reuse loop
Pool
5 to 12%
Backwash and blowdown; keep on a separate circuit, do not mix with shower water
Blended engineering estimates for a typical resort, hotel or campsite, not meter readings. Greywater and laundry streams usually drive treatment sizing; pool stays on a separate circuit.
Each scenario has different economics and feasibility:
At a grid-connected hotel, the driver is usually project defensibility for leadership and operations. At an off-grid campsite, it is usually replacing recurring haulage. Do not blend both into one marketing ROI.
| Loop | Volume impact | Viability |
|---|---|---|
| Recovered water → guest and staff toilets | High | Best first loop at hotels and campsites |
| Recovered water → irrigation, gardens, golf | High at resorts | Straightforward when seasonal demand exists |
| Recovered water → exterior cleaning and washing | Medium | Good second step |
| Recovered water → pool makeup | Low to medium | Separate circuit and chlorine management |
| Locally purified water → off-grid campsite services | High | Often the main economic argument |
| Recovered water → direct guest contact uses | Low | Phase 2; rarely the first step |
When showers and sinks can be kept separate from toilets and kitchen waste, you treat a lighter stream at lower cost. Often the first route for irrigation and toilet flushing. Dual plumbing helps but is not always required if outdoor reuse comes first.
When every stream already flows to one tank, as at many resorts and campings, one central plant treats the full mix. Higher load than greywater-only, but one system can cover toilets, irrigation and cleaning. Suited to sites cutting tanker haulage or a large municipal water bill.
Recovery at the shower or washbasin without site-wide pipework. Fits bungalow rows, communal shower blocks and phased retrofits. Lower volume per unit, but useful where central plant space is scarce or you want to prove operation before a full-site commitment.
Hotels and resorts with on-site laundry can recover roughly 75 to 90% of wash water and heat without replacing machines. A dedicated laundry loop is separate from guest-room water and often pays back on water, sewer, gas and detergent together.
See industrial laundries
Send us your available water volume, quality reports if you have them, and a quick site description. We compare specialised manufacturer proposals and come back with the most lucrative reuse routes for your site.
Get my comparisonScale and local rules differ. Comparing centralised treatment against point-of-use options on the same site data is what makes the difference.
Payback: 13 months
Camping Úbeda S.L. · Úbeda, Andalusia, ES
Without access to a sewer, the site paid for wastewater disposal via tanker trucks → installed circular showers and centralised water reuse → payback in 13 months with more than 70% wastewater recovery.
Payback: 2.6 years
Tamarit Beach Resort • Altafulla, Costa Daurada, ES
4-star beach resort and campsite → compared four manufacturer routes (centralised treatment vs circular showers) → recommended full-site reuse at 95% recovery with 2.6 year comparable payback.
When treated water is routed to irrigation, gardens or exterior cleaning rather than recirculated in the same process, EU and national water reuse rules apply. For on-site systems this aligns with EN 16941-2:2021 (on-site non-potable water systems).
In Spain, the EU framework is reflected in RD 1085/2024.
Toilet flushing as an end use typically requires mixed-wastewater treatment or dedicated blackwater handling. The same EU and national authorisation framework applies, but regulators scrutinise the treatment train and performance guarantees more closely than for irrigation-only routes.
Closed loop at the shower, tap or machine with no change of application. Circular showers, recirculating washbasins and in-machine laundry loops that return water to the same process sit outside EU and national reuse authorisation frameworks: no risk plan, no production authorisation, no dual plumbing on that basis. Often the simplest regulatory path, with lower volume per unit.
How it works
500+ specialised vendors
Caskade compares solutions from our network of 30+ vendors based on your site and effluent data
The best solution for your site
Caskade requests and evaluates 3+ proposals on cost and technology.
Contaminant load, volume, variability
Existing infrastructure, connection points
E.g. process recirculation or non-potable uses.
500+ in our databases
Possibly with different reclaimed-water use cases and/or technology routes
NEXT STEPS
Data capture
NO SITE VISITCapture layout, intended uses, water or tanker bills, quality analysis or known gaps.
The report
Compared routes, indicative budgets from filtered manufacturers and a documented recommendation.
Selection
Manufacturer conversations with context and reference pricing.
Installation
Less dependence on grid or haulage, operations with defined controls.
Data capture
NO SITE VISITCapture layout, intended uses, water or tanker bills, quality analysis or known gaps.
The report
Compared routes, indicative budgets from filtered manufacturers and a documented recommendation.
Selection
Manufacturer conversations with context and reference pricing.
Installation
Less dependence on grid or haulage, operations with defined controls.
3+ indicative proposals, requested from specialist manufacturers filtered for your site.
A real comparison of returns and technologies.
A documented recommendation you can defend with leadership and operations.
Local regulatory context: which requirements apply in your jurisdiction.
Free* if you can provide:
Your water bills or tanker haulage invoices (for return calculations)
A laboratory analysis of the water (for equipment design)#
*Manufacturers pay. #If you do not yet have lab analysis, we arrange it for a fixed fee. See FAQ for full pricing.
Send us your available water volume (m³/day or m³/month), water quality analysis reports if you have them, and a quick description of your process. We come back with the most lucrative treatment/reuse routes as well as real OEM proposals tailored to your site, with ROI and technological comparison.
FAQ
What regulations apply to greywater reuse?
It depends on jurisdiction and whether the site has municipal sewer connection. We translate local requirements into verifiable project parameters.
Do I need laboratory analysis before starting?
Not always. We start with available information and document gaps and a closure plan; without data, design stays indicative.
How much can I save?
A prudent range is 30 to 50% where service-water reuse applies. At off-grid campsites the driver is usually replacing tankers. Paybacks with boreholes and civil works can exceed 10 years, so we compare OPEX, not brochure CAPEX alone.
Why is a standard package not enough?
Occupancy, plumbing separation and chosen uses change the train. Without a common baseline you lose defensibility when questions arrive.
Is a grid-connected hotel the same as a campsite without sewer?
No. Economics, technology and internal approvals differ. The comparison must start from the real site profile.
Does EvalAgua sell treatment equipment?
No. We compare routes and manufacturers in a common framework and disclose that we may receive a commission if the project proceeds.
How much does an Eval cost?
If you can provide your water invoices (so we can size the project and calculate the return) and a water analysis lab report, your Eval is free: the manufacturers we bring into the comparison pay us, not you. This typically applies to campsites, hotels, resorts, industrial laundries, retrofits of existing treatment plants and many industrial projects.
If you don't have a lab report yet, we arrange sampling and analysis as part of the Eval, at cost. Ask us for a quote.
Extended-scope projects (multiple sites, multiple effluent streams, tender specifications, financing documentation) carry fixed fees, which we share after a first call.
And on any paid Eval, we refund 50% of the fee when your project is installed through a manufacturer we introduced, within 12 months of delivery, for installations from 25,000 euros.
