IBC tanks in 1000 litre and 600 litre sizes from Werit, white or black, and the RP Pro 750 L collapsible tank: for grow tent irrigation water, for mixing large batches of nutrient solution or for collecting rainwater in the garden. The black version blocks light, so no algae grow in the water.
| Model | Capacity | Key feature | Typical use |
|---|---|---|---|
| Werit IBC white | 600 or 1000 L | Lets light through: level visible, but keep it dark or covered | Cellar, indoor rooms, grow room |
| Werit IBC black | 600 or 1000 L | Blocks light: no algae | Outdoors, rainwater, nutrient solution |
| RP Pro collapsible | 750 L | Folds flat when empty and fits through narrow doors and stairs | Grow rooms and hard-to-reach spaces |
Many people use a 1000 litre IBC tank to collect rainwater from a roof or shelter. The maths is simple: 1 mm of rain on 1 m² gives 1 litre. With 20 m² of roof and a 25 mm downpour, about 500 L flows in, so two heavy showers fill a 1000 L tank.
For automatic watering, multiply the daily use of all plants by the days of autonomy you need and add about 20% reserve. Nutrient solution is renewed every 7–10 days, so a large tank works mainly as a water store from which you mix fresh solution each time. Keep it closed, dark and clean between cycles. Trays and accessories are in the watering and hydroponics category, DWC and aeroponic set-ups under hydroponic systems; for checks you need a pH and EC meter.
At Gro.w.LaB all prices are in Swiss francs, including Swiss VAT. We deliver throughout Switzerland by Swiss Post; bulky items such as IBC tanks travel by courier. For technical advice, send an email to our support team or call +41 79 359 67 58; you can also visit the shop in Quartino by appointment.
They are called IBC tanks (intermediate bulk containers): a plastic tank inside a metal cage, usually on a pallet.
Yes, it is one of the most common uses, both for rainwater in the garden and as a store for the grow tent. If it stands outdoors, choose the black one.
A rigid IBC tank is sturdy, can stand outdoors and moves with a pallet truck; the 750 L collapsible tank folds flat and fits where a rigid tank will not go. In the garden the IBC makes sense, in a hard-to-reach grow room the collapsible one.
Use a black tank, which blocks light, or cover a white one with a dark sheet. Keep the lid closed and clean the tank every time you empty it.
