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For a shop, office or practice with up to 15–20 people a day, a large-capacity residential septic tank is usually enough: ECO Water 3.0 for light loads or ECO Water 5.0 for heavier traffic. If the premises have a kitchen or serve food (café, pastry shop, bistro), add an ECO DIS 10 grease separator.
The load is daytime-only and lower than in a home: staff and customers use the toilets, but do not shower or do laundry. This allows smaller tanks than the number of people would suggest.
Installation space is often limited (car park, small yard, footpath). Burial depth, load-bearing or non-load-bearing cover and access for the vacuum tanker all matter.
Total cost matters more than purchase price: a tank with an outlet to drainage needs emptying less often, while a holding tank suits soil that does not allow infiltration.
| Situation | Recommended products | Configuration |
|---|---|---|
| Office or practice, up to 10 people/day | ECO Water 3.0 septic tank (3,000 L) from RON 4,490 | Tank with outlet to drainage, or holding tank |
| Shop, showroom, small workshop, 10–25 people/day | ECO Water 5.0 septic tank (5,000 L) from RON 7,890 ECO Imhoff 10 septic tank from RON 3,390 | Large-capacity septic tank |
| Café, pastry shop, bistro | ECO Water 5.0 septic tank (5,000 L) from RON 7,890 ECO DIS 10 grease separator (500 L) from RON 1,790 | Septic tank + kitchen grease separator |
| Mini-market or complex of 3–5 units | ECR Grand 10,000 L septic tank from RON 12,590 | Shared large-capacity septic tank |
Indicative sizing values: 3 office workers ≈ 1 P.E.; 10 occasional customers a day ≈ 0.5–1 P.E.; 3 café seats ≈ 1 P.E. Example: a shop with 6 staff and ~60 customers a day ≈ 2 + 3–6 = 5–8 P.E., i.e. the ECO Water 5.0 or ECO Imhoff 10 range. For premises with a kitchen, the separator is chosen by the number of meals, not the number of people.
About 3 P.E., so a tank around 3,000 L (e.g. ECO Water 3.0) is usually enough. If you also have daily customers, go for 5,000 L.
Yes, but with a concrete load-spreading slab and a load-bearing cover, following the installation instructions. For continuous vehicle traffic, we recommend placing it outside the driving area.
If you wash dishes, cups and equipment with milk and pastry residues, yes: a small separator (ECO DIS 10) prevents the septic tank from clogging.
For a tank of up to 5,000 L, installation usually takes one day, provided the site and access are prepared.
Send us the type of business, the number of people (or seats, beds, pupils), the available space and whether there is a sewer or watercourse nearby. We will reply with the recommended solution, price and delivery time. See also commercial septic tanks, grease separators, installation and design services or write to us via the contact page, or call +40 741 228 382.