Flexi Tank Waterbutts 100L, 225L, 400L and 750L | Collapsible Water Storage Tanks

🌱 Flexi Tank Waterbutts — Guide & Product Information

💧 Lightweight Collapsible Water Storage

Flexi Tank Waterbutts are practical collapsible water storage tanks designed for growers who need reliable reservoir capacity without the bulk of a rigid plastic tank. They are ideal for storing water or nutrient solution in hydroponic systems, grow rooms, greenhouses, gardens and irrigation setups.

Because they can be packed down when not in use, Flexi Tank Waterbutts are a great choice where storage space is limited or where a rigid reservoir would be difficult to move through tight spaces.

• ✔ Lightweight collapsible tank design
• ✔ Suitable for water and nutrient solution storage
• ✔ Packs away more easily than rigid reservoirs

Browse more reservoir options in our Tanks and Reservoirs category, or view the full Grow Systems range.

📦 Size Variations

Flexi Tank Waterbutts are available in multiple capacities, allowing growers to choose the best tank size for their plant count, grow system and refill schedule.

• ✔ 100L — ideal for small grow systems, compact spaces and light water storage needs
• ✔ 225L — suitable for medium-sized systems and regular reservoir use
• ✔ 400L — ideal for larger systems requiring increased water capacity
• ✔ 750L — best for high-capacity grow rooms, larger irrigation layouts and extended water storage

🌿 Ideal for Hydroponic and Irrigation Systems

A reliable reservoir is essential for many hydroponic and irrigation setups. Flexi Tank Waterbutts can be used to store plain water or mixed nutrient solution for drip feed systems, flood and drain systems, hand watering, reservoir-based feeding and grow room maintenance.

• ✔ Suitable for hydroponic reservoirs
• ✔ Useful for drip feed and irrigation systems
• ✔ Practical for storing water or nutrient solution

For compatible automated systems, browse our Drip Feed Systems, IWS Kits and Spares and AutoPot Systems and Spares.

🔧 Space-Saving Alternative to Rigid Tanks

Unlike hard plastic water butts, Flexi Tank Waterbutts are designed to be easier to position, store and transport. This makes them especially useful where access is tight, grow room layouts change regularly or seasonal storage is important.

• ✔ Easier to move through tight access points
• ✔ Packs away when not required
• ✔ Useful for temporary or changing grow room layouts

For other tank options, view IWS Tank, IWS Flexitanks and the wider Tanks and Reservoirs category.

💧 Useful for Mixing and Feeding Routines

Flexi Tank Waterbutts can be used as part of a regular feeding routine, especially where larger volumes of water or nutrient solution need to be prepared in advance. Choosing the right tank size can help reduce refill frequency and make watering more efficient.

• ✔ Helps reduce frequent refilling in larger systems
• ✔ Useful for mixing larger batches of nutrient solution
• ✔ Supports more organised grow room watering routines

For accurate feed preparation, use a Measuring Jug, Measuring Syringe or 5ml Pipette. For plant feeding products, browse Nutrients and pH Management.

💻 Technical Specifications

• ✔ Product: Flexi Tank Waterbutts
• ✔ Tank Type: Lightweight collapsible water storage tank
• ✔ Size Options: 100L, 225L, 400L and 750L
• ✔ Use: Water storage, nutrient reservoir and irrigation tank
• ✔ Application: Hydroponic systems, grow rooms, gardens, greenhouses and irrigation layouts
• ✔ Key Benefit: Space-saving collapsible design for easier storage and positioning

🏡 Ideal Uses

• ✔ Hydroponic water storage
• ✔ Nutrient solution reservoirs
• ✔ Drip feed and irrigation systems
• ✔ Greenhouse and garden watering
• ✔ Grow room expansion or reservoir replacement
• ✔ Compact storage when not in use

📏 Setup and Usage Tips

• ✔ Choose the tank size based on plant count, system type and feeding frequency
• ✔ Place on a firm, level surface before filling
• ✔ Rinse before first use to help keep stored water clean
• ✔ Keep covered where possible to reduce debris and light exposure
• ✔ Clean between nutrient changes to avoid residue build-up

For water transfer and filling, use a suitable hose such as the Clarke PGH60 ½” Heavy Duty Garden Hose. For automatic watering, view the PLANT!T Water Timer.

❓ FAQ

What sizes are available?
Flexi Tank Waterbutts are available in 100L, 225L, 400L and 750L sizes.

What are Flexi Tank Waterbutts used for?
They are used as collapsible water storage tanks or nutrient reservoirs for hydroponic systems, irrigation layouts, grow rooms, greenhouses and garden watering.

Are they easier to store than rigid tanks?
Yes — their collapsible design makes them easier to pack away and store when not in use compared with hard plastic reservoirs.

Which size should I choose?
Choose 100L for compact setups, 225L for medium systems, 400L for larger grow spaces and 750L for high-capacity water storage or larger irrigation layouts.

Can they be used with hydroponic systems?
Yes — they are suitable for water or nutrient solution storage in compatible hydroponic and irrigation systems.