Water Feature SpecialistsIt's what we know
Since 200322+ years' specialist experience

Caldera Rainbow Sandstone 50cm Column Water Feature

Add to Wish List
£469.00
In stock
Only 1 left

DURABLE AND LONG-LASTING, 12 MONTH WARRANTY

FREE HOME DELIVERY IN AS LITTLE AS 1-2 DAYS

Natural Rainbow Sandstone radiates vibrant hues

PERFECT GARDEN CENTREPIECE, IDEAL 50cm HEIGHT

EXPERT HELP

Need help choosing?

Speak to a water feature specialist about size, positioning or installation before you order.

Since 2003 23+ years’ specialist experience
2,500+ reviews Verified customer feedback

CONSIDERING AQUA MODA?

Book a personal consultation.

Manchester showroom or virtual.

BOOK A CONSULTATION
Prefer to talk? 0161 375 1235
SKU
0639767163408
Description
Aqua Moda Caldera / Natural Rainbow Sandstone

Caldera Rainbow Sandstone 50cm Column Water Feature

A compact architectural column carved from solid Indian rainbow sandstone, combining natural colour, vertical water movement and integrated lighting in a relatively small footprint.

Standing approximately 50cm high and 20cm in diameter, this Caldera is designed for gardens where you want clear vertical presence without the scale of the taller 70cm sandstone column.

Water bubbles from the top before flowing over the smooth sandstone surface and travelling down the full height of the feature into the concealed reservoir below.

Once wet, the stone changes considerably in character, with softer dry tones developing into richer oranges, reds, browns and purples. An integrated LED light illuminates the top water effect after dark.

Compact architectural height with the colour and individuality of natural sandstone. 50cm high   /   20cm diameter   /   Approx. 60kg   /   Integrated LED
Why choose the 50cm Caldera?

Vertical impact in a more compact natural stone form.

The 50cm sandstone Caldera is designed for spaces where the taller column could feel too dominant, while still providing a strong upright silhouette and full-length flowing water effect.

01 / COMPACT HEIGHT

50cm vertical profile

Tall enough to remain visible amongst low planting while being easier to integrate into smaller patios, borders and courtyards.

02 / SMALL FOOTPRINT

Only 20cm across

The slim column delivers strong visual height while taking up very little space within the finished garden.

03 / DAY & NIGHT

Integrated LED lighting

The top water effect can be enjoyed after dark as the LED draws attention to the point where the water emerges.

The Caldera water effect

A compact column covered in moving water.

Water is pumped internally through the sandstone and emerges gently at the top of the feature.

It spreads over the upper surface before flowing around the edge and travelling down the smooth stone exterior.

The water creates a thin shimmering layer across the sandstone, intensifying its natural colour before falling into the concealed reservoir and being continuously recirculated.

Gentle top bubble Water emerges quietly through the centre of the column.
360° surface flow Water spreads over the upper stone and around the perimeter.
Full-height cascade Flowing water travels down the 50cm sandstone surface.
Concealed return Water falls into the reservoir below and is continuously reused.
Compact Caldera proportions

More height than a bowl without becoming a dominant garden structure.

The simple cylindrical column form gives the Caldera a cleaner and more architectural appearance than a carved twist or irregular natural stone feature.

At approximately 50cm high and 20cm across, the proportions are compact enough for smaller gardens while retaining enough stone surface for a clearly visible vertical water effect.

50cm Compact natural stone height
20cm Slim column diameter
~60kg Substantial solid sandstone construction
Solid Indian rainbow sandstone

Natural banding made more dramatic by flowing water.

Rainbow sandstone is naturally layered, with colours and mineral markings formed within the stone itself.

When dry, the surface can appear relatively soft and pastel. Once wet, the colouring becomes much stronger, revealing richer orange, red, brown and purple tones.

Because the stone is natural, the exact position and strength of those layers will vary from one Caldera column to another.

Every column is individual

Exact colour, mineral banding, surface markings, weight and subtle dimensions can vary naturally between pieces. These differences are part of the character of genuine stone.

Integrated LED lighting

Designed to remain a focal point after sunset.

By day

Natural daylight and flowing water reveal the individual layers within the sandstone, with the wet surface appearing noticeably deeper and more saturated than the dry stone.

After dark

The integrated LED illuminates the bubbling water at the top, creating a brighter focal point before the water continues down the darker stone surface.

Designed for smaller spaces

Architectural water movement without a large footprint.

The 50cm Caldera is particularly useful where there is not enough space for a larger sphere, bowl or taller statement column.

Its narrow footprint makes it easy to position within a planted border, beside a patio, within gravel or as a focal point in a smaller courtyard.

The warm natural sandstone also softens the clean cylindrical form, allowing it to sit comfortably within both contemporary and more traditional landscapes.

Smaller patios
Courtyard gardens
Narrow borders
Gravel gardens
Seating areas
Compact focal points
Concealed in-ground installation

Hide the reservoir and keep the sandstone column as the focal point.

The supplied 66cm diameter heavy-duty pebble pool is installed below the finished garden surface, allowing the column to appear to rise directly from the surrounding landscape.

Choose the position

Select a firm, level area with access to a suitable outdoor electrical supply.

Excavate

Prepare an opening for the supplied 66cm diameter heavy-duty pebble pool.

Level the reservoir

Install the reservoir securely and ensure it is level below the finished garden surface.

Install the pump

Position the supplied mains-powered pump inside the reservoir and connect it to the column.

Prepare the support

Ensure the support area is stable and suitable for the approximately 60kg natural stone column.

Position the column

Carefully centre and level the 50cm sandstone column over the concealed reservoir.

Finish the surface

Conceal the reservoir with decorative pebbles while retaining suitable access for pump maintenance.

Fill & enjoy

Fill the reservoir and switch on the pump. Water rises through the column and flows back into the hidden pool below.

No permanent water supply required Caldera uses a self-contained recirculating system, so no permanent plumbing connection is required. The included pump is mains powered. Simply top up the reservoir periodically to replace water naturally lost through evaporation and splash.
Complete water feature kit

Supplied with the main components required for installation.

50cm Rainbow Sandstone Column Solid natural stone column measuring approximately 50cm high x 20cm diameter and weighing around 60kg.
66cm Heavy-Duty Pebble Pool Concealed underground reservoir for the recirculating water system.
Mains-Powered Pump Suitable recirculating water pump supplied with a 10m electrical cable.
LED Light Integrated lighting for illuminating the water effect at the top of the column after dark.

Decorative pebbles are available separately, allowing the reservoir to be concealed and the finished installation coordinated with surrounding paving, gravel or planting.

Natural stone transformed by water

One column, two very different colour characters.

When dry

The sandstone displays softer pastel and earthy tones, with the natural layers and mineral markings visible but relatively restrained.

When wet

Flowing water deepens the stone dramatically, bringing orange, red, brown and purple tones forward and increasing contrast between the natural bands.

Explore Aqua Moda Caldera

Architectural column water features in natural stone and Corten steel.

Explore Caldera designs in rainbow sandstone, basalt, granite, slate and Corten, with compact 50cm columns through to taller statement features approaching a metre in height.

Aqua Moda personal consultation

Choosing between the compact and taller Caldera?

Our water feature specialists can help you compare column heights, natural stone finishes, water effects and installation options to find the right scale for your garden.

Visit our Manchester showroom by appointment or arrange a complimentary virtual consultation.

Reviews

Reviews

Delivery & Returns

About Your Delivery

del

Water Features Under 30kg

Delivered directly to your door by DPD Local. You’ll receive a text or email with your estimated delivery time and options to redirect your parcel to a neighbour or safe place.

del_1

Heavy or Bulky Water Features

Delivered kerbside by a specialist pallet courier, with tracking provided after dispatch. Larger items may arrive in a protective wooden crate, which will require a suitable pry bar or similar tool to open.

14day

14-Day Returns

Return your order within 14 days for a full refund, subject to our returns terms. Please inspect your order on arrival and store it somewhere dry and secure until installation.

Still have questions?

See our full delivery information or get in touch.

Delivery Information    |    Email Us

Recently Viewed

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.