Guide - Water filtration or on-site bottling: which does your venue need?
“Water filtration system” describes two different purchases for UK and Ireland venues. One treats the water that runs through your building, to protect boilers, laundry, coffee machines and ice makers. The other turns your mains water into chilled still and sparkling drinking water, served in your own branded glass bottles, to replace the bottled water you buy in. Hotels, restaurants, care homes, schools, clubs and offices that search for one often need the other, and many need both from different suppliers.
Two purchases that share a name
| Building water treatment | On-site water bottling | |
|---|---|---|
| What it does | Reduces scale, sediment and chlorine in the water supply | Filters, chills and carbonates mains water, then fills reusable branded glass bottles |
| Where the water goes | Boilers, pipework, showers, laundry, kitchen equipment, coffee and ice machines | Tables, bars, guest and resident rooms, meeting rooms, dining halls, events, spas and gyms |
| What it replaces | Descaling, breakdowns and early equipment replacement | Bought-in bottled water, its deliveries, storage and recycling |
| Who usually buys it | Engineering, estates or maintenance | General manager, F&B, catering, facilities, procurement or sustainability lead |
| What guests see | Nothing: it sits in the plant room or under the counter | A bottle with your venue's name on it |
| How it is paid back | Lower maintenance and longer equipment life | A lower cost per bottle served, from day one |
Which one do you need?
You need building water treatment if:
- Scale is damaging boilers, showers, laundry or kitchen equipment
- Your coffee or ice tastes of chlorine, or machines need frequent descaling
- Your water supply has a known quality problem
You need on-site bottling if:
- You buy in still or sparkling water for tables, rooms, meetings, events or residents
- Bottle deliveries, storage and glass recycling take up space and staff time
- You want your own brand, not a water brand’s, on the table
- You are reducing single-use bottles as part of a sustainability plan
If both lists describe your venue, you need both. They are separate systems, usually from separate specialists.
What on-site bottling involves
An on-site bottling system is installed where your team fills bottles, usually back of house or behind the bar. EcoPure Waters systems:
- Filter mains water through commercial-grade double filtration to 0.5 micron, with UV purification, using filters certified to NSF/ANSI Standards 42 and 53
- Chill and carbonate it, so the same system serves still and sparkling
- Fill bottles quickly: the Quattro Filler fills four bottles at once for high-volume hotels
- Wash, sanitise and cap bottles with a precision washer and capping machine
- Use reusable glass bottles printed with your venue’s logo, designed with you and printed within 1 to 2 weeks of artwork approval
There are over 50 system configurations, from compact countertop units for small venues to high-volume fillers for large hotels, care groups and campuses. Installation typically takes 1 to 2 weeks once any remedial works are complete. Systems can be rented, with care and maintenance included, or acquired with monthly care and maintenance.
What on-site bottling costs compared with bought-in water
The cost per bottle falls as volume rises, because the fixed costs are spread across more bottles.
| Bottles filled per day | Cost per bottle |
|---|---|
| 25 | £0.37 |
| 50 | £0.28 |
| 100 | £0.22 |
| 150 | £0.20 |
| 200 | £0.19 |
Bought-in bottled water often costs £1.20 to £1.50 a bottle wholesale, and premium glass costs more. On average, EcoPure Waters clients save 75 to 80% against bought-in, single-use glass bottled water, and up to £1.61 a bottle against premium glass. Use the savings calculator for a figure based on your own volumes, or read the full cost breakdown in The EcoPure Effect: 2026.
Next step
See which system suits your venue, browse our case studies, or go to your sector: hotels, restaurants and bars, care homes, caterers, clubs and spas, education, golf clubs, offices or wedding and event venues.
FAQs
What is the difference between a water filtration system and an on-site bottling system?
A water filtration or treatment system protects the building: it reduces scale, sediment and chlorine before water reaches boilers, laundry and kitchen equipment. An on-site bottling system produces drinking water for guests: it filters, chills and carbonates mains water and fills reusable branded glass bottles, replacing bought-in bottled water.
Does a venue need both?
Many do. Building water treatment protects equipment, while on-site bottling replaces the bottled water served at tables, in rooms and at meetings and events. They are separate systems, usually from separate specialists.
How is the water in an on-site bottling system filtered?
EcoPure Waters systems use commercial-grade double filtration to 0.5 micron with UV purification. The filters are certified to NSF/ANSI Standards 42 and 53.
How much does on-site bottling cost compared with bought-in bottled water?
The cost per bottle falls with volume, from £0.37 at 25 bottles a day to £0.19 at 200 a day. On average, EcoPure Waters clients save 75 to 80% against bought-in, single-use glass bottled water.
Can the bottles carry our own logo?
Yes. EcoPure Waters designs reusable glass bottles with your logo permanently printed, and aims to print them within 1 to 2 weeks of artwork approval.
How long does installation take?
Installation typically takes 1 to 2 weeks once any remedial works are complete.
Can an on-site bottling system be rented?
Yes. Systems can be rented with care and maintenance included, or acquired with monthly care and maintenance.