---
title: "Bottled dispenser or mains-connected dispenser"
description: "The two types differ in water source, logistics, space taken and waste generated. A comparison on verifiable criteria, with no health claims."
category: blog
slug: dozator-cu-bidon-sau-conectat-la-retea
date: 2026-10-27
---

The fundamental difference between the two types of dispenser is not the machine but **where the
water comes from**. One receives water in containers delivered periodically. The other takes it
from the building's plumbing and treats it on the spot. From that single difference everything
else follows: logistics, space, the type of waste and the points at which something can go wrong.

## The bottled dispenser

Water arrives in 10–19 litre containers, delivered periodically. The machine is essentially a
stand with chilling and serving.

**What it involves:**

- a supplier who delivers at fixed intervals
- space for full bottles and for empties awaiting return
- a person who changes the bottle when it runs out
- dependence on the delivery rhythm: if it runs out between deliveries, the serving point is dead

**The real advantage:** it needs no plumbing connection. It can go anywhere there is a socket. For
a space without accessible plumbing, it is the only option.

## The mains-connected dispenser

Water comes from the building's plumbing and passes through a treatment chain before serving.

**What it involves:**

- a connection to the water supply, therefore a fixed position, chosen at installation
- consumables: the filters, changed at scheduled intervals
- periodic maintenance of the serving point
- no storage, no returns, no gaps between deliveries

**The real limitation:** move the machine and you need a new connection. Placement flexibility is
lower than with bottles.

## Comparison on criteria

| Criterion | Bottled | Mains-connected |
|---|---|---|
| Water source | delivered containers | building plumbing |
| Storage space | yes, full and empty | no |
| Possible interruption | between deliveries | a plumbing problem |
| Main consumable | the bottle | the filter |
| Waste generated | packaging, returned or not | used filters |
| Placement | free | fixed, near the connection |
| Recurring staff work | changing the bottle | none between services |

## What a treatment chain actually does

For Unikat Flow dispensers, the chain is as follows: the water is filtered with **zeolite and
activated carbon**, **chilled**, then passed through an **electrolysis chamber with 7 titanium
plates**, right before serving. Nothing is added to the water.

Preparation happens at the moment of serving, not at bottling. This is a description of a process,
not a statement about effects. For what can and cannot be said about water in commercial material,
see the [guide to checking claims](/en/stiai-ca/cum-verifici-o-afirmatie-comerciala-despre-apa/).

## How to choose, in practice

Three questions decide, in this order:

1. **Do you have accessible plumbing where you want the serving point?** If not, the discussion
   ends there: bottled.
2. **Who does the recurring work?** If you have nobody to change bottles, a system that requires it
   will, in practice, be empty at peak hours.
3. **How much space can you afford to immobilise?** Storing full and empty bottles is a hidden
   cost, which we set out in the article on
   [what bottled water costs a gym](/en/blog/cat-costa-apa-imbuteliata-intr-o-sala-de-fitness/).

## Key points

- The substantive difference is the water source, not the machine.
- Bottles buy placement flexibility at the price of recurring logistics.
- A mains connection removes the logistics but fixes the location.
- The consumable changes: bottle versus filter.
- Neither system justifies any health claim.

## Sources

- Regulation (EC) No 1924/2006 — EUR-Lex, CELEX 32006R1924
- Directive (EU) 2019/904 — EUR-Lex, CELEX 32019L0904

---

Source: https://unikatflow.com/en/blog/dozator-cu-bidon-sau-conectat-la-retea/