How to Choose a Water Butt: Capacity, Shape and Connection Kits
A water butt is a useful way to collect roof runoff for garden watering, but choosing one involves more than picking the biggest tank. The right model needs to fit your space, connect to your downpipe and let you draw water off conveniently. Start with these practical checks before comparing colours and decorative finishes.
1. Choose capacity around your watering routine
Think about the plants you water, how often you refill a watering can and where the tank will stand. A few patio pots create a different storage need from several beds and a greenhouse. Capacity tells you how much a tank can hold; it does not guarantee how much rain your roof will supply or how long the water will last.
For a simple comparison, a full 110-litre tank represents eleven 10-litre watering-can fills, while 265 litres represents about twenty-six. These are arithmetic examples, not a promise of usable supply: actual access depends on the outlet position and water remaining below it.
The Slim Round Water Butt 110L is one option to compare when storage space is limited. Its listing offers colours with and without a connection kit. Select the exact option before checking the price, availability and included equipment.
2. Measure the installation space, not just the tank
Measure the available width, depth and height beside the downpipe. Leave room to open the lid, inspect the connection, reach the tap and clean the tank. Check the route through gates or narrow passages as well; a suitable final position is no help if you cannot move the tank there.
A tall, narrow model and a round barrel can hold different volumes while occupying quite different footprints. Allow clearance for any stand and for the watering can beneath the tap. If dimensions in a listing are unclear, confirm the measurements for the selected variant before ordering rather than assuming every capacity has the same dimensions.
3. Decide whether the finish or a planter matters
If the tank will sit beside a seating area, its appearance may be part of your decision. The Wood-Effect Barrel Water Butt 265L is listed in brown and black. It offers a barrel-style appearance, and its product information states that the base is not included. Include any required support in your planning.
The Amphora Water Butt with Built-In Planter has listed capacities of 210, 360 and 440 litres, with a removable planter insert. Choose the capacity and colour together: the options shown on the page do not mean every combination is always available. Check the selected variation before adding it to your basket.
4. Check exactly what the connection kit contains
Before buying, make a short equipment list: tank, compatible downpipe connection, tap, connecting hose, any filter, and support where required. Compare that list with the contents stated for your chosen variant. A tank photographed with accessories is not enough to establish that those accessories are included.
Check your downpipe shape and dimensions against the connection kit instructions. Confirm outlet threads and hose fittings separately; do not assume a connector for one tank will fit another. Follow the manufacturer’s instructions for connection height, overflow and drilling positions rather than making holes by eye.
If you already own a tank, check its model and existing fittings before buying replacements. Taking a clear photograph of the connection and recording its measurements is more useful than choosing a fitting solely because it looks similar.
5. Plan access and a stable base
Water adds considerable weight: 110 litres of water weighs approximately 110kg, before adding the tank itself. Plan a firm, level support suitable for the filled tank and follow its installation instructions. For a balcony or raised structure, confirm the permitted loading before placing a water-filled tank there.
For routine use, the RHS recommends a close-fitting lid, a filter to keep debris out and enough tap clearance for a watering can. It also notes that a hose connection alone does not provide strong pressure; a suitable pump may be needed. Keep gutters clear and clean water butts annually. See the RHS advice on collecting and storing water for further care guidance.
Your checklist before ordering
- Capacity matched to your watering routine.
- Space measured, including access, lid and tap clearance.
- Exact colour and capacity selected.
- Connection kit and tap contents checked.
- Compatible downpipe, outlet and overflow arrangement confirmed.
- Suitable support planned for the filled tank.
Compare the current rainwater tank range and review your chosen product’s details before ordering. Jumping Bugzy ships within the UK. Collection in the Manchester area requires a prior appointment.