The revolution of treated water on tap in Spain

|Cristian Marimon Sepena
Grifo moderno dispensando agua tratada filtrada en cocina o barra profesional para hogar, oficinas, hoteles y hostelería - Install Beer
Complete guide · Treated, filtered, chilled, ambient and sparkling water by tap

Treated water dispensed by tap: complete guide for homes, offices, hotels and hospitality

Treated water dispensed by tap allows you to have filtered, chilled, ambient or sparkling water directly from a service point, without relying on bottles, jerrycans or continuous storage. It is an increasingly attractive solution for homes, offices, hotels, restaurants, coffee shops, gyms, educational centres and public spaces seeking convenience, quality, sustainability and control over consumption.

Treated water Filtered water Chilled water Sparkling water Home Offices Hospitality AquaTaps

Quick summary

A treated-water-by-tap system takes mains water and conditions it through filtration, activated carbon, reverse osmosis, ultrafiltration, remineralization, chilling or carbonation, depending on the project. The result is a dispensing point that is more practical than bottled water, with less need for transport, fewer waste materials, less storage and a more convenient drinking experience for homes, offices and businesses.

The key idea: this article is a general guide, not a technical data sheet for fittings

This guide explains what treated water dispensed by tap is, how it works, what advantages it offers and what type of solution may fit each environment. If you need to identify tube sizes, connectors, John Guest fittings, CO₂ or carbonators, consult the specific technical guides linked later on. This way we avoid mixing the decision to install a water system with the technical connection details.

AquaTaps solutions for tap water

At Install Beer we work with AquaTaps solutions for filtered, chilled, ambient or sparkling water projects in homes, offices, hospitality and professional spaces. You can check the page on dispensing water by tap or the water dispensers collection if you are looking for a complete solution.

Guide contents

What is treated water dispensed by tap

Treated water dispensed by tap is mains water that passes through one or more treatment processes before being served from a tap, fountain, column or dispenser. Depending on the quality of the feed water and the desired result, the system can reduce tastes, odors, sediments, chlorine, scale, dissolved salts or other elements present in the water.

There is no single system suitable for all cases. A home may need a compact under-sink solution; an office may need chilled water for many people; a hotel may require water points in common areas; and a restaurant may want filtered and sparkling water for table service.

Dispensación de agua tratada por grifo con sistema de filtración para hogar, oficina u hostelería
Treated water by tap allows you to have drinking water available from a fixed point, without relying on bottles or jerrycans.
Filtered water

Improves taste, smell, and organoleptic quality with filters suited to the inlet water.

Cold or ambient water

Allows you to serve water at drinking temperature without fridges, bottles or constant restocking.

Sparkling water

Integrates carbonation with food‑grade CO₂ when you want sparkling water from a tap.

How a tap‑treated water system works

Operation depends on the type of unit, but the general layout is usually very similar: water comes in from the mains, is treated as needed, chilled or carbonated if applicable, and dispensed from a tap or service point.

1. Water inlet

The system is connected to an existing water outlet or to a line prepared for the unit.

2. Treatment

The water passes through filters, osmosis, ultrafiltration, or other systems depending on the desired quality.

3. Chilling or carbonation

If the project requires it, the water can be chilled or carbonated before service.

4. Dispense

Water is served from a tap, column, fountain or dispenser adapted to the environment.

Most common treatment technologies

The choice of technology depends on the feed water, the intended use and the type of consumer. It is not always necessary to install reverse osmosis; in many cases correctly sized filtration is enough. In other projects, especially when a very specific water profile is sought, osmosis or remineralization may be advisable.

Technology What it does Where it usually fits Practical note
Sediment filter Retains suspended particles. Pretreatment, unit inlet, protection of downstream filters. Useful as a first barrier when there are visible particles or carry-over.
Activated carbon Helps improve taste and odor, especially against chlorine and compounds that affect flavor. Home, offices, hospitality, cafés, and drinking water. Very common in filtered water systems by tap.
Ultrafiltration Filters very fine particles through a membrane. Projects where advanced filtration is desired without removing as many salts as reverse osmosis. It can be an interesting alternative depending on water quality.
Reverse osmosis Significantly reduces dissolved salts and other elements present in the water. Homes, offices, cafés and projects with specific quality requirements. It is advisable to size it well and consider remineralization if necessary.
Remineralisation Adjust the water profile after intensive treatments. Drinking water, coffee, hospitality and projects where final taste is important. Can improve the balance of the water when reverse osmosis is used.
Descaling or anti‑scale Reduces or controls problems caused by hardness. Areas with limescale, protection of equipment, coffee machines, chillers and machinery. It does not always replace point-of-use filtration; it can complement it.
Cooling Lowers the water temperature before serving. Offices, hotels, restaurants, gyms and water coolers. Key when you want constant chilled water without bottles.
Carbonation Add food-grade CO₂ to obtain sparkling water. Restaurants, hotels, premium offices and HORECA. Requires carbonator, CO₂, correct pressure and technical maintenance.

Types of water that can be dispensed

One of the strengths of these systems is that they allow the service to be adapted to real usage. Not all projects need the same thing: some only want ambient filtered water; others need chilled water; and others want to combine chilled, ambient and sparkling water from a single point.

Still water

Ideal for homes, kitchens, small offices, or points where chilling is not required.

Chilled water

Very useful in offices, gyms, waiting rooms, hotels, cafés and restaurants.

Filtered water

Basic option to improve daily consumption without relying on bottles.

Osmotized water

Recommended when a more intense reduction of salts and a specific water profile is sought.

Sparkling water

Interesting solution for hospitality, hotels and offices that want to offer a premium alternative.

Water for beverage preparation

It can be used as a base for coffee, infusions, cooking, cocktails, or prepared drinks.

Advantages over bottled water

Tap-treated water not only improves convenience. It also changes daily logistics: it reduces recurring bottle purchases, handling, occupied space, restocking, waste and dependence on deliveries. In businesses with constant consumption, this difference can be especially important.

Sistema de dispensación de agua tratada por grifo como alternativa al agua embotellada en oficinas y hostelería
A mains-fed system helps reduce bottles, transport, restocking, waste and storage space.
Advantage What it provides Where it’s most noticeable
Sustainability Reduces the use of single-use bottles and containers. Offices, hotels, restaurants, gyms and public spaces.
Convenience Water is available from the tap or dispenser without constant restocking. Homes, kitchens, break rooms and bars.
Less storage Frees up space previously used for bottles, jugs or crates. Small premises, kitchens, storage rooms and offices.
Better service control Allows you to define what water is offered: ambient, chilled, filtered or sparkling. Hospitality, hotels, and offices with high turnover.
Professional image It reinforces a perception of care, modernity and sustainability. Restaurants, hotels, offices and customer-facing spaces.
Operational savings Can reduce costs associated with purchasing, transporting, restocking, and managing containers. Environments with recurring and steady consumption.

Applications by environment

The same treated water by tap concept can be applied in very different ways. The key is to choose the system according to consumption, available space, desired temperature, type of water, maintenance and the experience you want to offer.

Environment Typical need Recommended solution
Home Water for daily consumption, cooking, coffee, infusions and reducing bottles. Under-sink filter, reverse osmosis or filtered water tap depending on water quality and preferences.
Offices Water available for employees and visitors throughout the day. Cold/ambient water dispenser, network-connected fountain, or system with sparkling water if a premium experience is sought.
Hotels Service in breakfasts, common areas, meeting rooms, or rooms. Fountains, filtered water taps, bottle fillers or chilled and sparkling water solutions.
Restaurants Water service at the table, kitchen, and beverage preparation. Professional system with filtration, chilling and optional sparkling water according to the menu and operation.
Coffee shops Water for drinking, coffee, infusions and equipment. Filtration adapted to the incoming water and to the use of the machinery.
Gyms and sports centres High consumption, fast replenishment and convenient service for the user. High-capacity fountains or dispensers with chilled water.
Educational or healthcare centres Convenient access to water for users, staff, and visitors. Point-of-use coolers connected to the mains with filtration and periodic maintenance.

Do you want to explore a tap-treated water solution?

Install Beer can help you assess which type of system best fits your consumption, space, water quality, user type and need for ambient, chilled or sparkling water.

See AquaTaps solutions View water dispensers

How to choose the right system

Before choosing a dispenser or treated water system, it is advisable to define the actual use. A common mistake is to buy based only on price or looks, without considering consumption, technical access, filters, maintenance, temperature, carbonation, or the unit’s capacity.

Question Why it matters Example decision
How many people will use it? It determines flow rate, chilling capacity and equipment size. A home is not the same as an office with 80 people.
Do you want cold water? Requires a chiller or dispenser with cooling capacity. Highly recommended in offices, hotels, and restaurants.
Is sparkling water required? Requires carbonator, food-grade CO₂, and appropriate technical configuration. Interesting for restaurants, hotels and premium offices.
What is the quality of the inlet water? Determine whether filtration is enough or whether reverse osmosis, anti-scale or another treatment is advisable. Water hardness, taste and odor determine the system.
Where will it be installed? The available space determines equipment, ventilation, access and maintenance. Under-sink, under-counter, plant room or common area.
Who will carry out the maintenance? Filters and equipment need regular check-ups. In HORECA it is advisable to plan technical service from the outset.

What to plan before installing

A tap-treated water installation should not be improvised. Although some units are compact, you must check the water supply, pressure, drain if applicable, power outlet, ventilation, space for filters, accessibility and pipe routing.

Instalación de agua tratada dispensada por grifo con equipo de filtración y punto de servicio
Before installing, it is advisable to plan the water supply, technical space, maintenance access and desired water type.
Common technical requirements
  • Nearby water supply.
  • Space for filters or equipment.
  • Drain if there is osmosis or equipment that requires it.
  • Power outlet for coolers, pumps or carbonators.
  • Sufficient ventilation if there is refrigeration equipment.
  • Access for maintenance.
Useful data for requesting a proposal
  • Type of premises or dwelling.
  • Approximate number of users.
  • Intended use: drinking, kitchen, coffee, table, bottles.
  • Preference: ambient, chilled, or sparkling.
  • Photos of the installation space.
  • Location of water and power supply.

Maintenance of a treated water system by tap

Maintenance is key for the system to work stably and for the water to maintain the expected quality. The frequency depends on consumption, the quality of the inlet water, the type of filter, the unit installed and the usage environment.

Task Why it matters Indicative frequency
Filter replacement It prevents saturation and maintains treatment performance. According to manufacturer, consumption and water quality.
Connection check Allows you to detect leaks, wear or stress in tubing. At each intervention or preventive maintenance.
Cleaning the service point Maintains hygiene and a good appearance at the tap or dispenser. Regulate, especially in public spaces.
Cooler check-up Ensures the correct temperature and good performance. Depending on use and installation conditions.
CO₂ check if there is sparkling water Allows you to maintain stable, safe carbonation. Depending on consumption and unit configuration.
Taste and odour control Helps detect exhausted filters or changes in the feed water. Ongoing by the user and periodic by technical service.

Common mistakes when choosing tap-treated water

Error Consequence How to avoid it
Choosing only by price The unit may fall short in flow, chilling capacity or maintenance. Assess actual consumption, water type and environment.
Not testing the incoming water The treatment may not be suitable. Check taste, smell, hardness and user needs.
Do not plan for technical space Awkward installation and difficult maintenance. Allow space for filters, equipment, and access.
Not planning maintenance Loss of performance and worse consumption experience. Define filter reviews and changes from the start.
Ordering sparkling water without considering the installation There may be insufficient space, CO₂, pressure, ventilation or equipment capacity. Assess carbonator, CO₂ cylinder, consumption, and point of service.
Not distinguishing between home and professional use A domestic unit may not withstand intensive use. Size according to number of users and service peaks.

Related guides to avoid mixing concepts

This article explains the general concept of tap‑treated water. For more specific topics, you can consult these complementary guides:

Filtered and sparkling water for hospitality

Guide more oriented to restaurants, hotels and professional table or bar water service.

Read the filtered and sparkling water guide for hospitality

How a water dispenser works

Specific article on the internal operation of water dispensing equipment.

Read how a water dispenser works

John Guest connectors for HORECA water

Technical guide to sizes, fittings, tubing, CO₂, carbonators and professional connections.

Read the John Guest HORECA technical guide

John Guest connectors for filters and reverse osmosis at home

Specific guide for domestic fittings, under-sink filters and reverse osmosis.

Read the John Guest home guide

Do you want to install treated water on tap?

Tell us if you need ambient, cold, filtered, reverse-osmosis, or sparkling water, and in what environment it will be installed. We will guide you towards the most suitable system for a home, office, hotel, restaurant, or professional space.

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Frequently asked questions about treated water dispensed by tap

What is treated water dispensed by tap?

It is mains water that passes through a treatment system before being served from a tap, fountain or dispenser. Depending on the installed equipment, it can be filtered, osmotised, chilled, ambient or sparkling.

What is the difference between filtered, osmotised and treated water?

Treated water is the general term. Filtered water usually refers to water that passes through filters to improve taste, smell, or particles. Osmotized water passes through a reverse osmosis membrane that more intensely reduces salts and other dissolved elements.

Can cold and sparkling water be dispensed from the same system?

Yes, there are systems that can serve chilled, ambient and sparkling water from one or several taps. For sparkling water you need a carbonator, food-grade CO₂ and appropriate technical configuration.

What advantages does it have over bottled water?

It reduces bottles, storage, transport, restocking and waste. It also allows you to have filtered or chilled water continuously available, offering a more convenient experience for users, customers or employees.

Which system is suitable for an office?

It depends on the number of people, consumption, space and type of water desired. In offices, a mains‑connected dispenser with filtration and chilled water usually works well; in premium offices you can also add sparkling water.

Which system is suitable for a restaurant or hotel?

In hospitality it is advisable to assess consumption, table service, chilled water, sparkling water, installation area, maintenance and unit capacity. A professional system with filtration, chilling and carbonation may be required.

What maintenance does a treated water dispenser need?

It usually requires filter replacement, connection checks, cleaning of the dispensing point and performance control. Frequency depends on consumption, water quality and equipment type.

Is professional installation necessary?

In simple systems it can be a relatively compact installation, but in offices, hotels, hospitality venues or sparkling water systems, professional installation is recommended to ensure proper flow, safety, accessibility and maintenance.

Does Install Beer install tap-treated water systems?

Yes. Install Beer provides tap water dispensing solutions, filtration, chilling, sparkling water, installation, and maintenance for homes, offices, hospitality, and professional spaces.

Is AquaTaps suitable for homes, offices, and hospitality?

Yes. AquaTaps groups treated-water-by-tap solutions for different environments, from homes and offices to hotels, restaurants and professional projects.

Technical note: this guide is informative and general. The final choice of system must be made by assessing the quality of the incoming water, expected consumption, available space, desired type of water, applicable regulations, installation, maintenance and technical compatibility of the unit.