In Bolivia’s cities, home and office delivery (HOD) of 5-gallon water barrels is a well-established business. Reliable hygiene and professional sealing are what separate a trusted brand from the competition.
This case study documents a 700 BPH automatic 5-gallon barrel water line that zoolinked mechanical designed and delivered for an HOD business in La Paz, Bolivia looking to modernize and expand.
Project Overview
| Item | Detail |
| Location | La Paz, Bolivia |
| Product | 5-gallon (18.9 L) refillable barrel water |
| Designed capacity | 700 barrels per hour (BPH) |
| Water source | Municipal supply |
| Plant footprint | Approx. 170 m² |
| Operators required | 3 per shift |
| Scope | Turnkey: design, manufacturing, installation, commissioning, training |
1. Project Background & Client Requirements
The HOD business served offices and homes but relied on a slow, partly manual washing and filling process that limited growth and consistency.
The client wanted automation to raise throughput, standardize hygiene and support expansion into new delivery routes.
The client set several clear requirements for the project:
- Automated washing and filling of 5-gallon barrels
- Consistent internal/external hygiene and reliable sealing
- Purified water meeting drinking water standards
- A line operable by a small crew
- Target output of around 700 barrels per hour
2. Raw Water Analysis
Our engineers reviewed the municipal water supply, noting chlorine, moderate hardness and altitude-related handling considerations:
- Chlorine/odor: present → activated carbon filtration
- Hardness & TDS: moderate → RO for stable low-TDS water
- Turbidity: variable → multi-media pre-filtration
- Microbial safety: UV + ozone dual disinfection
3. Turnkey Solution & Process Flow
zoolinked mechanical delivered a complete automatic 5-gallon barrel water line. The full process flow is:
- Municipal water tank → feed pump
- Multi-media (sand) filter — removes turbidity
- Activated carbon filter — removes chlorine and odor
- 5 µm security filter
- Reverse osmosis (RO) — stable low-TDS purified water
- Purified water storage tank (SUS304)
- UV + ozone disinfection
- Automatic barrel decapper & internal/external brush washing
- Rinsing, filling & capping station — 700 BPH
- Cap sorting & lid pressing → inspection → heat-shrink sealing
4. Equipment Configuration
The line was configured to automate the full barrel cycle:
| Equipment | Specification / Function |
| Water treatment train | Sand + carbon filtration, RO |
| UV + ozone disinfection | Dual sterilization |
| Barrel decapper & washer | Internal/external brush washing |
| Filling & capping station | Rinse-fill-cap, 700 BPH |
| Cap sorter & lid press | Automatic cap feeding and pressing |
| Inspection & shrink sealing | Light inspection + shrink seal |
5. Installation & Commissioning
After factory testing, the line was installed in the 170 m² facility. Installation and commissioning took about three weeks, including:
- Layout and connection of the treatment and RO system
- Installing the barrel decapper, washer and filling station
- Setting up cap sorting, lid pressing and shrink-sealing
- Trial runs with hygiene and fill-volume checks
- Water testing to confirm drinking water compliance
6. Operator Training
The crew was trained on:
- Start-up, shutdown and CIP cleaning
- Operating the barrel washer and monitoring wash quality
- Adjusting the filling and capping station
- Routine maintenance and troubleshooting
7. Results & Return on Investment
Automation raised throughput and standardized hygiene:
- Throughput reached 700 barrels/hour, clearing the bottleneck
- Standardized hygiene improved product safety
- Reliable sealing ensured safe delivery
- The business expanded delivery routes within months
With higher, consistent throughput, the business grew its HOD customer base and recovered its investment quickly.
Conclusion
This La Paz project shows how automating a 5-gallon barrel line removes manual bottlenecks and standardizes hygiene for a growing HOD business. From water treatment through automated washing, filling and sealing, zoolinked mechanical delivered a complete turnkey solution.
Planning Your Own Packaged Drinking Water Plant?
zoolinked mechanical delivers complete sachet, bottle and barrel water lines — from raw water analysis and process design to manufacturing, installation, commissioning and operator training. Tell us your target output, water source and packaging format, and our engineers will prepare a tailored proposal and quotation for your 5-gallon barrel water line.
