Description
A Slim 100 Litre Reservoir That Fits Where Round Tanks Won't
The Slim Space Saver Water Butt is a rigid, heavy-duty 100 litre water butt with a narrow footprint of about 36 × 32 cm, so it stands in the corner of a grow tent, against a greenhouse wall or beside a downpipe without taking over the floor. Use it as a nutrient reservoir for gravity-fed systems such as AutoPot, as a supply tank for pumped irrigation, as a back-up solution tank for gully and DualFlow systems, or to collect rainwater for watering.
Key Benefits
- 100 litre capacity in a tall, slim body that saves floor space.
- Rigid, heavy-duty build – holds its shape full or empty and stands securely on its own.
- Dark, opaque wall – keeps light out of stored water and nutrient solution, which discourages algae.
- Lid and base tap – fill from the top and draw off at the bottom.
- Gravity-feed ready – raise it on a stand to supply AutoPot and other gravity-fed systems.
- Rainwater storage – collect soft, low-mineral rainwater as a clean starting point for feeding.
Short on Floor Space for a Reservoir?
A round tank or flexible reservoir of the same volume takes a big bite out of a tent or greenhouse floor, leaving less room for plants and airflow. A slim butt stores 100 litres upright, so the space goes to growing instead. Collecting rainwater helps too: in hard-water areas tap water carries calcium carbonate that pushes pH up and uses part of the EC budget before any nutrient goes in, while rainwater gives a cleaner base for consistent nutrient uptake.
How to Use
- Position: stand it on firm, level ground – 100 litres of water weighs about 100 kg.
- Gravity feed: raise it on a stand (sold separately) so the water level sits above the pots or system it supplies.
- Pumped irrigation: lower a submersible pump in through the top and run the feed line out under the lid.
- Cover: keep the lid on to block light and keep out debris and insects.
- Clean: empty and rinse it between batches of nutrient solution so residue and algae cannot build up.
Technical Specifications
- Capacity: 100 litres
- Dimensions: approx. 36 × 32 × 96 cm (D × W × H)
- Construction: rigid, heavy-duty plastic with a dark, opaque finish
- Fittings: lid and tap at the base
- Weight (empty): approx. 2.7 kg
- Uses: nutrient reservoir, gravity-feed supply tank, back-up solution tank, rainwater storage
- Stand: not included
Frequently Asked Questions
Can I use it with an AutoPot system?
Yes – it is made for gravity-fed systems such as AutoPot. Set it on a stand so the reservoir sits above the pots, then connect the system's supply line at the base.
Does it come with a stand?
No, the stand is sold separately. Raising the butt gives gravity-fed systems the head of water they need and makes it easier to fill a watering can from the tap.
Will it fit in a grow tent?
At about 36 × 32 cm across and 96 cm tall it takes up very little floor space. If you plan to raise it on a stand inside a tent, check the tent's height first.
Works Well With
