How to Choose Sewer Cleaning & Jetting Equipment Compliant with Law No. 303/2013 in Moldova
Maintaining water and sewer networks at the municipal level in Moldova is governed by Law No. 303/2013 on public water supply and sewerage services and Law No. 1402/2002 on public utility services. Choosing the right sewer jetting/vacuum truck depends on tank capacity, jetting pressure, and the type of network served.
1. Legal Framework — Law No. 303/2013 and Law No. 1402/2002
Water and sewer utility operators in Moldova operate under the requirements of Law No. 303/2013 (as updated by LP133/2024), which governs the quality and continuity of public water supply and sewerage services. Law No. 1402/2002 completes the general framework for public utility services, including the maintenance of underground infrastructure.
2. Available Types of Water/Sewer Equipment
- Combination units (vacuum + high-pressure jetting): The most versatile solution — combines waste suction with high-pressure pipe cleaning in a single pass.
- Vacuum-only units: Recommended for emptying septic tanks and collection basins, without a jetting function.
- Emergency pipe-repair equipment: Mobile equipment for rapid repairs to water networks, used by operational response crews.
3. Sizing the Tank and Jetting Pressure
| Waste Tank Capacity | Jetting Pump Pressure | Recommended Use |
|---|---|---|
| 3,000 – 5,000 L | 100 – 150 bar | Small networks, courtyards, institutions |
| 8,000 – 12,000 L | 150 – 180 bar | Municipal collectors, medium urban networks |
| 15,000 – 18,000 L+ | 180 – 220 bar | Large-diameter collectors, regional networks |
4. Mandatory On-Board Equipment
- High-pressure hose with rotating nozzles: For effectively clearing deposits inside the pipe.
- Water recirculation system: Reduces clean-water consumption during extended operations.
- Vacuum pump for waste suction: Sized according to the storage tank’s volume.
- Inspection camera (optional): Useful for diagnosing network condition before and after servicing.
Tehnoport’s technical consultants help water/sewer utility operators choose the optimal configuration based on the diameter of the network served and the planned volume of work.