A flexible water tank is the ideal solution for growers and hobby gardeners who need a reliable water supply for their plants. Unlike rigid containers, foldable tanks can be set up quickly, stored in a space-saving way and used flexibly – whether in a grow tent system, greenhouse or outdoor garden. Especially combined with modern irrigation systems, flexible water tanks ensure an even water supply and healthy plants.
Flexible water tanks give you plenty of reservoir capacity without a rigid tank taking up space permanently. Here you'll find collapsible tanks of 100, 250, 500, 750 and 1000 litres, the AquaKing Foldable Flex Water Tank 100L and an extendable watering lance. Choose the size based on how many plants you water and how often you want to refill; a larger tank also keeps the temperature more stable. Place the tank on a flat, clean surface and keep it covered to prevent algae. Add a submersible pump and, in cold rooms, a reservoir heater.
Questions & answers about Flexible Water Tanks
All growing questions →- Water, pH & EC How often should I change the water in my reservoir? In recirculating hydro, every 1 to 2 weeks. In soil or coco you mix fresh feed for each watering, so there is nothing to change. Read the answer →
- Water, pH & EC What is the ideal water temperature for my plants? Roughly 18 to 22 °C. Colder water slows the roots, warmer water above about 24 °C makes root rot much more likely. Read the answer →
- Medium & pots How often should I water in soil and in coco? Soil: water when the pot feels light and the top 2–3 cm are dry. Coco: water small amounts often, daily or every second day in bigger pla... Read the answer →
- Water, pH & EC Can I use tap water, or do I need reverse osmosis water? Tap water is fine if it's moderately hard (EC below roughly 0.8). RO water is a blank slate for exact control, but you must add Cal-Mag. Read the answer →
Advantages of Flexible Water Tanks
Flexible tanks offer many advantages over conventional plastic or metal containers:
Space-saving: foldable and easy to transport. Easy setup: assembled in minutes – no tools needed. Robust & durable: made from resistant, waterproof material. Versatile: suitable for indoor & outdoor, grow tents, gardens and greenhouses. Compatible: a perfect addition to automatic irrigation systems and hydroponic setups.
Applications in the Grow Room and Garden
Whether in a grow room, a grow tent or on the terrace – flexible tanks can be integrated almost anywhere. They come in various sizes, so both small indoor projects and larger outdoor areas can be reliably supplied with water.
Indoor growing: space-saving water storage for grow tents & hydro systems. Outdoor gardening: a mobile, robust solution for beds & greenhouses. Professional cultivation: combined with automatic drip irrigation.
Flexible Water Tanks Combined with Irrigation Systems
A foldable tank is often combined with pipes, pumps and drip systems. This allows plants to be continuously and efficiently supplied with water or nutrient solution. Especially in hydroponic systems or large grow tents, a stable water reservoir plays a central role in success.
Buy Flexible Water Tanks
Whether for a grow tent, indoor growing, hydroponics or an outdoor garden – with flexible water tanks you always have the right water supply on hand. They're space-saving, robust and versatile – the perfect addition to an efficient irrigation system.
