400L Flat Rainwater Wall Tank – Decorative & Space-Saving Water Storage. This 400L flat rainwater ...400L Flat Rainwater Wall Tank – Decorative & Space-Saving Water Storage. This 400L flat rainwater tank is the perfect solution for collecting and storing rainwater. Designed for mounting directly against a building wall, it saves valuable space while providing a generous storage capacity. Slimline & Space-Saving Design – Just 300mm depth, perfect for patios, gardens, and narrow outdoor spaces. Stylish Decorative Finish – Features a stone-effect front panel to blend beautifully with any home or garden. Generous 400L Capacity – Provides ample rainwater storage while fitting neatly against any wall. Easy Water Access – Two threaded holes allow for tap installation or quick-release coupling connection. Complete Connection Kit Included – Downpipe adapter and fittings supplied for fast, hassle-free installation. Durable & Weather-Resistant – Built with strong, UV-stable material for long-lasting outdoor use. Stable Segmented Structure – Designed for strength and balance when full. Colour Options – Available in Anthracite or Grey to suit your outdoor aesthetic.
This 400L flat rainwater tank is designed for homeowners looking to efficiently collect and store rainwater while maximizing outdoor space. Its key benefit is a slimline, wall-mounted design that saves space and features a decorative stone-effect front. A potential caveat is the need for a stable, flat surface for installation and ensuring connection to a suitable downpipe.
All features
Colour
Grey
Model Part Number
IDWS400ICS
Brand
B2C
Extended Product Information
FAQs
What are the exact dimensions of the tank?
The tank has a depth of 300mm. Height and width dimensions are optimized for wall mounting and a 400L capacity.
Does the tank come with a tap?
No, the tank does not include a tap or hose. These can be purchased separately and fitted to the two threaded outlets.
What material is the tank made from?
The tank is constructed from strong, UV-stable material designed for durability and weather resistance.
How do I connect it to my downpipe?
A downpipe adapter and fittings are included. You will cut into your existing downpipe and insert the adapter to divert water into the tank.
Can I paint the tank?
While the tank is made from durable material, painting is not recommended as it may affect the UV stability or decorative finish. It is available in Anthracite or Grey options.
What is the warranty period?
Information regarding the warranty period should be checked with the retailer at the time of purchase.
Is the stone-effect front panel removable?
The stone-effect panel is integrated into the design for aesthetic purposes and is not designed to be removed.
Troubleshooting
Tank is not filling with water
Check that the downpipe adapter is correctly fitted and aligned with the tank inlet. Ensure there are no blockages in the downpipe or the adapter.
Water is leaking from the tank
Inspect the tank for any visible cracks or damage. Ensure any installed fittings (tap, coupling) are securely tightened and sealed.
Difficulty installing a tap
Ensure you are using the correct size fitting for the threaded outlet. Use PTFE tape on the threads for a better seal if needed.
Tank appears unstable
Confirm the tank is positioned on a perfectly level and solid base. Ensure wall fixings are secure and appropriate for your wall type.
Pros and Cons
Pros
Space-saving slimline design perfect for tight outdoor areas.
Aesthetically pleasing with a decorative stone-effect finish.
Large 400L storage capacity for gardening and water conservation.
Includes a comprehensive connection kit for easy setup.
Durable and weather-resistant construction for longevity.
Cons
Requires a stable, flat wall for secure mounting.
Tap and hose are sold separately, requiring an additional purchase for immediate use.
The decorative front panel may not suit all garden styles.
Maximum capacity can be heavy when full, requiring secure installation.
Setup, Compatibility & Care
Setup:
Identify a suitable, level, and stable wall surface for mounting.
Connect the provided downpipe adapter to your existing downpipe, ensuring it's positioned to direct water flow into the tank.
Position the tank against the wall, ensuring it sits on a firm, level base.
Secure the tank to the wall using appropriate fixings (not included, as wall types vary).
Install a tap or quick-release coupling to one of the threaded outlets, using appropriate sealant if necessary.
Compatibility:
Compatible with standard round and square downpipes using the included adapter.
Threaded outlets are standard sizes for common tap and coupling fittings.
Care:
Clean the exterior of the tank periodically with a mild detergent and water using a soft cloth.
Ensure the inlet filter is clear of debris to maintain optimal water flow.
In winter, if temperatures are expected to drop below freezing, it is advisable to empty the tank to prevent damage from ice expansion.