Internal Reservoir and Pump


The Alitex internal greenhouse reservoir collects rainwater from the roof and guttering. This keeps the water warmer which reduces the risk of thermal shock. The reservoir is supplied with a simple manual pump which enables easy retraction of water into your watering can.

The Alitex reservoir is made of robust construction and is fitted underneath the bench by discreetly sinking half into the ground, with half above. It holds 80 gallons of water which can be extracted using the manual pump.

Locating the reservoir under the bench protects the collected water from exposure to sunlight which helps reduce algae build up. Whilst rainwater is also soft, this can be a major advantage in hard water areas as many plants are averse to liming.

With an increasing awareness for sustainability, water conservation and becoming more self-sufficient, our reservoir is the perfect way to collect and harvest your rainwater. This also reduces the requirement for large external water butts.

* Please note: This item will need fitting at the time of the greenhouse installation.

Of robust construction, the 80-gallon (360 litre) capacity reservoir, is supplied with a simple manual pump, which enables easy retraction of water into your watering can, and an overflow pipe leading outside the glasshouse.

The Details

Accessory Features

Wheelbarrow Illustration

Collecting, storing, and using rainwater is an economically and eco-friendly method of keeping your plants watered

Lavender Illustration

With the reservoir sunken into the base of your greenhouse, and the pipes and pumps sitting along the underside of your benching, the water system is very subtle

Chicken Illustration

Easily accessibly water is essential for gardeners who like to have everything on hand

Product Specifications


L 130cm x W 57cm x D 67cm


Our water reservoir is made from robust HDPE plastic. The hand pump handle is powder coated to match your greenhouse benching, and follows the silhouette of your side vent handles. The pipe is made from stainless steel in chrome, with a clear braided PVC hose supplying water water to and from the pump.

Frequently Asked Questions

Can it be fitted retrospectively?
Unfortunately, your water reservoir must be chosen during the building process to accommodate its sunken placement.

How visible is it?
The water reservoir is a discreet yet essential aspect of your greenhouse. It is sunken into the building works beneath your lower bench shelf, remaining mostly hidden. A pipe runs along the greenhouse wall and under the benching to the pump handle, discreetly positioned at the bench’s edge.

How do I keep it clean?
We offer bags of ceramic chips known as EM ceramics, short for effective microorganism ceramics. These chips are made of clay fermented with microorganisms and remain active for an extended period after firing. They are highly effective at enhancing water quality and keeping it fresh. Just place the bag into your reservoir. For further details, watch our instructional video.




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