Sewer maintenance and disposal
Regular maintenance of grease, oil and sludge separators as well as infiltration systems - compliant, documented, and with a disposal certificate.
What maintenance and disposal covers
Separators, infiltration systems and retention basins are core components of private and municipal drainage. They protect the public sewer network and the receiving waters from harmful loads. To keep working, they must be serviced regularly, cleaned, and the collected material disposed of compliantly.
The legal framework is clear: the Swiss Water Protection Ordinance (GSchV) obliges operators to regular maintenance and documentation. Missing maintenance records can lead to fines and liability - especially when pollutants reach waters. Greentech Solutions takes over the maintenance, cleaning and disposal, and issues all required records.
With our annual maintenance contracts you have certainty that all legal deadlines are met. We proactively remind you of the next service, deliver on schedule and hand over the maintenance protocol with disposal certificate immediately after each visit. Your operation stays compliant year-round.
So funktioniert es
Unser bewährter Prozess - transparent und effizient von Anfang bis Ende.
- 1
Inventory
We record all installations, review the existing documentation and assess the maintenance need based on the last disposal cycle.
1 - 2
Cleaning
Complete emptying and cleaning of the separator, infiltration shaft or retention basin with a specialised vehicle.
2 - 3
Function check
We inspect all relevant components: inlet zone, dip wall, outlet, sludge chamber and venting - for function and leak-tightness.
3 - 4
Disposal
Compliant disposal of the collected material according to cantonal regulations and the Swiss Water Protection Ordinance (GSchV) - with a full disposal certificate.
4 - 5
Maintenance protocol
You receive a maintenance protocol with date, condition assessment, disposal certificate and a recommendation for the next service.
5
Who is this for?
Gastronomy and kitchens
Compliant grease-separator maintenance to the required interval - reliably documented for regulatory inspections.
Industry and commercial
Maintenance of oil, fuel and sludge separators on works sites, filling stations and commercial properties to Swiss standards.
Property management
Predictable maintenance contracts for all separator installations across your portfolio - documented and on schedule.
Municipalities
Maintenance and disposal of municipal retention and infiltration systems along a planned schedule and GSchV requirements.
Your benefits
We combine technical expertise with transparency — so you always know what to expect.
- Compliant disposal with a full disposal certificate
- Maintenance contracts with fixed pricing - full planning certainty
- All separator types: grease, oil, sludge, fuel
- 24/7 emergency service for failures or blockages
- Maintenance protocol for authorities and insurers
- Combines with sewer cleaning and CCTV inspection
Recommended maintenance intervals
Regular maintenance saves money in the long run and prevents emergencies.
| Measure | Interval | Mandatory? |
|---|---|---|
| Sewer flushing (SFH) | every 5–10 years | Recommended |
| Sewer flushing (MFH / commercial) | every 2–5 years | Recommended |
| CCTV inspection | every 10 years | Depends on canton |
| Leak testing | every 10–15 years | Yes (GSchV) |
| Grease-trap emptying | every 1–3 months | Yes (gastronomy) |
| Oil-separator servicing | twice a year | Yes (industrial) |
Häufige Fragen
How often does a separator have to be serviced?
Maintenance intervals are set by law and vary by separator type. Grease separators in gastronomy are typically emptied every 4-8 weeks, oil separators at least once per year, sludge separators depending on load. We help you set the right service rhythm.
Which legal requirements apply?
Separators fall under the Swiss Water Protection Ordinance (GSchV) and the cantonal implementing rules. Operators are required to service separators regularly, dispose of the contents compliantly and keep the maintenance records. We issue all documents you need.
What does separator maintenance cost?
Cost depends on separator volume, contents and accessibility. For recurring maintenance we offer annual contracts with fixed pricing - that gives you planning certainty and typically better rates than one-off orders.
What is a separator and what does it do?
Separators retain specific substances from wastewater before it enters the public sewer. Grease separators hold back food fats, oil separators mineral oils and fuel, sludge separators particles and suspended solids. They protect the sewer network and receiving waters.
What if the separator blocks or fails?
For a failure or blockage we run a 24/7 emergency service. We dispatch as fast as possible, resolve the fault and restore proper operation - with full documentation.
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