Rainwater Harvesting: Installation & Pitfalls - Simon Jones (Even Products Ltd)

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Rainwater Harvesting

Simon Jones


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It’s a RESOURCE...... CAPTURE IT!


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Rainwater Harvesting – WHY?

Control of Supply

Control Runoff – Attenuation

Save Money


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Using the WaterIrrigation

Livestock Watering

Washdown

Cooling of buildings

Chemical spraying

Fire protection

Dust suppression


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Installation

A modular system........


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Installation

Water Collection & StorageReservoirs

Steel Tanks

Underground Concrete Tanks


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Installation

Water DistributionPipework ‐ PE

Pumps


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Installation

Water FiltrationDisc or Screen

UV

Ozone


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One we installed earlier....


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Installation details.....Roof area: 15000m²

Storage: 1000m²

Pipe size: 160mm

Tanks: 5 x 7.31/4.57 metres


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Calculating the Harvest....

Roof Area: 40 x 20 metres (800m²)

Average Rainfall: 0.8 metres (800mm)

This roof can collect 640,000 litres (140,000 gallons)

At £1.20 per cubic metre this is £768.00


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How much does Storage Cost?Water Tank with liner and fabric cover

50m³ £1795

128m³ £3277

288m³ £5864

Payback in under 4 years! (depending on usage)


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Illustration 1

Roof Area: 60 x 40 metresTotal: 2400 sq metres

Average Rainfall: 800 mm

Total Collectable per annum: 1920 cubic metres

Water saving at £1.20/m³ £2,304.00

Storage Tank: 128m³ £3,200.00

In line Manual Filter 25m³/hour £200.00

Pipework & Pump £1,000.00

Total Cost £4,400.00

Payback 1.91 years


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Illustration 2

Roof Area: 60 x 40 metresTotal: 2400 sq metres




Storage Tank: 288m³ £5,900.00

In line Automatic Filter 15m³/hour £2,000.00



Payback 3.86 years


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Illustration 3

Roof Area:Total: 10000 sq metres




Storage Tanks: 2 x 128m³ £5,900.00Reservoir: 7200m³ £20,000.00

2 x In line Automatic Filter 15m³/hour £4,000.00



Payback 3.38 years


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Points to consider.....

What quality of water do you need... There is always a cost attached to quality

Storing large quantities of water consider aeration, filtration, algae build up, evaporation and disease


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The CONS.......

Space.... Do you have the space available?

Cost ...... Grant funding is next!!


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The PROSControl of water supply

Control of water quality

Control of runoff

Save money.... Short term payback


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Summary

Catch Water – It’s FREE!

Catch Water – Control

Catch Water – Save Money!

Catch Water...... There is no CATCH!!


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HereHere’’s one that we made earlier!!s one that we made earlier!!

Robust construction Withstands wind and snow loadsDesigned to British Standards (BS 5950, BS 8110)


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Water Storage Tanks

•Designed to British Standards

•Tanks up to 2,000,000 litre capacity (2000m³)

•40% extra safety margin

•Water Council Approval

•Steel Covers with 2 Hatches

•Purlin superstructure

•Designed to withstand wind and snow loading


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Reservoirs can have large storage capacity

Easy to install

Inexpensive solution for large quantities of water

Technology

Rainwater Harvesting: Installation & Pitfalls - Simon Jones (Even Products Ltd)