Gravity Fed Water Blade – 300mm Spout

Gravity Fed Water Blade – 300mm Spout

Temporary made to order lead time: Due to exceptionally high demand at the Water Blades factory, these stainless steel water blades are currently being made to order. Please allow up to 3 weeks for manufacture and dispatch. This is temporary, and we will always aim to send sooner wherever possible.

The Gravity Fed Water Blade with 300mm Spout is the ultimate choice for creating a bold and dramatic waterfall effect in ponds and gravity-fed systems. Carefully designed and refined since its early development in 2016, and officially launched in 2018, this premium stainless steel blade has been built to deliver unmatched reliability, strength, and style.

Specifically engineered to eliminate back pressure, the Gravity Fed Water Blade ensures a smooth, uninterrupted sheet of water, even at higher volumes. It accommodates inlet pipes up to 4 inches in diameter, making it compatible with powerful pond systems that demand both performance and durability.

The 300mm spout projection produces an extended overhang, giving you a striking water feature that adds instant impact to your pond, koi system, or garden design. This long projection is ideal for those looking to create a visually dramatic cascade or to project water further into the pond.

Each blade is made from 3mm thick stainless steel for the back flange and a 2mm stainless steel body, providing a robust construction that will stand the test of time. The professional brushed stainless steel finish adds a sleek, modern appearance while ensuring corrosion resistance and low maintenance.

Available in widths from 200mm to 600mm, the Gravity Fed Water Blade 300mm Spout can be customised to suit projects of any size. For unique designs, bespoke manufacturing is also available, allowing you to tailor the blade to your exact specifications.

Installation is straightforward using a regular (non-threaded) pipe fitting and a rubber coupling, ensuring a secure connection that supports long-term use.

Key Benefits

• Optimised for gravity-fed systems – Smooth, even water flow with no back pressure.
• Extended 300mm spout projection – Creates a dramatic, bold waterfall effect.
• Durable stainless steel design – 3mm flange and 2mm body for strength and longevity.
• Modern brushed finish – Stylish, professional look that complements any setting.
• Compatible with large inlet pipes – Accepts pipes up to 4 inches in diameter.
• Flexible sizing – Available in widths between 200mm and 600mm.
• Custom manufacturing available – Tailored solutions for bespoke pond and garden designs.
• Handcrafted in Sheffield – Made in the UK with strict quality assurance.

Technical Specifications

• Spout Projection: 300mm
• Available Widths: 200mm, 300mm, 400mm, 500mm, 600mm
• Back Flange Thickness: 3mm stainless steel
• Body Thickness: 2mm stainless steel
• Inlet Size: Up to 4″ (gravity-fed compatible)
• Finish: Brushed stainless steel
• Inlet Type: Regular pipe fitting with rubber coupling required

Recommended Pump Flow Rates

• 200mm width: 2,000 – 3,000 LPH
• 300mm width: 3,000 – 5,000 LPH
• 400mm width: 4,000 – 7,000 LPH
• 500mm width: 5,000 – 8,000 LPH
• 600mm width: 6,000 – 9,000 LPH

Create a bold statement in your pond or garden with the Gravity Fed Water Blade 300mm Spout – designed for high performance, long-lasting durability, and a dramatic water display.

 

 

 

Pump and flow rate guidance

Gravity-fed water blades are more sensitive to pipework design than a normal pump-fed blade. The unit needs a large, unrestricted feed so the water can settle and spread evenly across the spill lip without being forced through a small pressure hose. Water Blades recommend the following pump outputs as a starting point for gravity-fed water blade installations, measured as the real flow arriving at the blade after head height and pipe losses.

Water blade width	Recommended pump flow after head height
200mm	2,000 to 3,000 LPH
300mm	3,000 to 5,000 LPH
400mm	4,000 to 7,000 LPH
500mm	5,000 to 8,000 LPH
600mm	6,000 to 9,000 LPH

When choosing a pump, do not work from the headline pump size alone. A pump rated at 10,000 litres per hour will deliver less than that once it has to lift water and push it through pipework. For this reason, it is often worth selecting a larger variable flow pond pump and turning it down to suit the blade once installed.

Pipework and installation extras

Gravity-fed blades should be installed with the correct rigid pipe, smooth bends and suitable rubber couplings rather than being reduced too aggressively. Keeping the pipework large and unrestricted helps the blade fill evenly and reduces the chance of surging or uneven flow. Use the inlet size selected on the product and avoid guessing based on outside diameters, as pond hose, pressure pipe, black waste pipe and rubber fittings are not always interchangeable.

Compare other water blade options

Choosing the right water blade comes down to the installation style, spout projection, inlet position and the look you want to create. These related options may help you compare the full range before ordering.

• Standard pump-fed water blades: Water Blade 60mm Spout, Water Blade 130mm Spout, Water Blade 300mm Spout, Water Wall Blade.
• Gravity-fed water blades: Gravity Fed Water Blade – 100mm Spout, Gravity Fed Water Blade – 200mm Spout.
• Decorative stainless steel waterfall spouts: Angled Vertical Spout Waterfall, Curved Vertical Spout Waterfall, Arc Waterfall, Archer Falls Waterfall, Lagoon Falls Waterfall, Corner Water Blade.
• Stainless steel spillways: Stainless Steel Spillway with 25mm Sides, Stainless Steel Spillway with 50mm Sides.