Water usage and sustainability in large hotels

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For large hotels, effective water management is essential for both reducing operational costs and minimising environmental impact. Hotels with facilities such as swimming pools, spas, and saunas, require strategic water management to ensure optimised consumption levels.

Monitoring water usage helps safeguard your business against supply interruptions and unforeseen leaks. By tracking your water usage, you can identify high areas of consumption and implement water saving techniques to reduce costs over time.

Water usage in large hotels

Large hotels often feature a variety of different facilities that demand significant water resources. Key areas include: 

  • Guest rooms facilities including bathrooms, showers, toilets
  • Internal laundry services (towels, linens, staff uniforms)
  • Kitchens, bars and dining areas
  • Swimming pools, spas, and wellness centres


The presence of facilities like swimming pools and spas greatly increases daily water consumption compared to smaller hotels. Routine cleaning, maintenance, and filtration of pools, hot tubs, and public areas further contribute to increased water usage.

Large hotels can reduce water wastage by monitoring usage, fixing leaks promptly, and implementing smart water management practices. Regular audits and water monitoring can identify inefficiencies and prevent costly leaks.

Water sustainability within large hotels

Hotels are significant consumers of water, with the average room using about 1,500 litres daily. Larger hotels, especially those with amenities like pools, spas, and golf courses, can easily surpass this estimate. To manage water usage more efficiently, many hotels are turning to water-saving technologies like low-flow tap aerators, greywater recycling systems, and hippo cistern bags. These devices help reduce water consumption without compromising guest comfort, while also cutting operational costs related to water supply and wastewater treatment.

Beyond the immediate financial benefits, adopting sustainable water practices is increasingly important in meeting the rising demand for eco-friendly accommodations. Travelers are becoming more environmentally conscious, and hotels that demonstrate a commitment to sustainability can attract these guests and improve their overall brand reputation. Additionally, achieving certifications for sustainability—often tied to water efficiency—can further boost a hotel’s credibility and market positioning, offering a competitive advantage in an industry where responsible tourism is gaining traction.

Man cleaning at a public pool

How Castle Water can help large hotels

Castle Water offers tailored solutions for large hotels, ensuring efficient water management and compliance with all relevant regulations. Our services include:

  • Compliance with regional and national legislation on water usage.
  • Comprehensive water management services tailored to your hotel’s needs.
  • Consolidated billing for multi-site hotels, simplifying financial management.
  • Wastewater disposal services to ensure regulatory adherence.
  • Trade effluent licence application and support for large-scale operations.


By switching to Castle Water, your hotel can streamline water management, reduce consumption, and contribute to a greener hospitality industry.

FAQs for large hotels

Hotels vary wildly with the amount of water they use. On average, a hotel can use around 1,500 litres per day for every room that it has. However, largehotels – such as conference hotels or those with swimming pools – can exceed this figure considerably.

The average large hotel can use anywhere between 163,000 and 330,000 litres per year, with additional usage for pools, which can require 81,000-90,000 litres just for filling.

Large hotels can lower their water usage by installing smart water meters, implementing greywater recycling, upgrading to low-flow fixtures, and encouraging sustainable guest practices like towel and linen reuse.

Large hotels that produce significant amounts of wastewater, especially those with kitchens or laundries, may need to apply for trade effluent consent. Castle Water can guide you through this process to ensure compliance with local regulations.

Ready to change your water supplier?

No matter whether your hotel is large or small, contact Castle Water for expert assistance. Our customer service team is more than happy to help with any sector-specific queries you may have.

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