RainwaterHarvesting

The completedirect feedrainwater system• Modular solution

• Calming inlet

• Pre-primed pump

• Multi-source inlets

• UK manufacture

• Quick to install

...installing a rainwater harvesting systemcould supply 50% or more of yourdomestic water demand and in excessof 80% for commercial applications...

How we use our water*

Why rainwaterharvesting?

33%

Average water consumption in the UK is 150 litres per person (unmetered). 39% or 58.5 litres perday per person could be saved by using recycled rainwater. For a family of four this is 1,638 litresper week or 85,176 litres per year - Ofwat

gettingwashed

30%flushingtoilets

7%garden &

car cleaning

13%washingclothes

9%otheruses

www.brettmartin.com *Source: Waterwise

Rainwater HarvestingRainwater harvesting systems are complete water re-use and filtration solutions that draw rainwater run-off from roof areas through guttering and downpipes and store it for later use inunderground tanks. When water resources are under increasingpressure from population growth and climate change, it helps reducethe demand on mains supplies by providing non-potable water forwashing clothes, cleaning vehicles, flushing toilets and watering gardens.

With domestic applications, a correctly sized rainwater harvesting system can supply up to50% of the water demand. This should be determined by the area over which the wateris collected, also known as the available yield, and is dependent upon the usage from thenumber of WCs supplied and any irrigation requirements.

On commercial developments the demand for mains water usage can be much higher.Office blocks, schools and commercial buildings typically use greater quantities flushingurinals and WCs with additional supplies feeding landscaped areas and vehicle washes. In such applications rainwater harvesting can provide savings of up to 80% supplementingthe mains water supply.

The Brett Martin Rainwater Harvesting System is a direct feed system. Harvestingrainwater with a direct feed system simply means the delivery of pressurised, pumpedwater to feed the garden taps and toilets. Water is pumped from the tank and the tank istopped up in times of drought by the mains backup system.

The range is available in two systems; Home & Garden and Garden only. This leaflet isintended to provide a brief introduction to the unique benefits of both rainwaterharvesting and also the Brett Martin system.

For more information please contact us: telephone 01246 280000 or email building@brettmartin.com

Can save home-owners up to 50%of their annual potable water usage

Perfect for toilet flushing, laundrywashing, car washing and garden use

Reduces demand on valuable waterresources, helping conserve water

in the face of climate change

Helps satisfy Legislativerequirements enforcing the

need to conserve water

Can help minimise the impact of predicted higher water

charges and water metering

The benefits of rainwater harvesting:

A modular solution, providingease of installation and quicker

project completion

Features calmed inlet to avoiddisturbance of settled

sedimentation and improvewater quality by aeration

Complete with primed pump,providing reliable performance

and reduced maintenance

Three inlets for multiple water sources

Integrates with Brett Martinrainwater and underground

drainage systems

UK manufacture, helpingachieve a lower carbon

footprint

Single piece pre-fittedconstruction assists

installation times and cost

Brett Martin RainwaterHarvesting System:

Home & Garden System

InletOne of three optional inlets

Filter unitUtilities/service

Duct connection

Access coverComplete with steel access cover and

PP frame for ease of maintenance

Filter overflowDischarges filter overflow to

surface water drain

Calming inletSits at base of tank to diffuse flow

and prevent disturbance

Pump & control systemTop up control system includes a self

priming pump located in tank

Floating intakeExtracts and further filtersclean water from beneath

surface layer

The combined Home and Garden System is designed to filter and store collected rainwater in robust HDPEtanks. An integral submersible pump supplies harvested water to WCs and washing machines via pressurisedpipes. A simple branch line from this pipe can feed bib taps or hose connections allowing the water to beused externally. The Home and Garden system is supplied with a mains water ‘top-up mechanism’ to ensure there is a constant reservoir within the tank and avoid the dry running of the pump.

• Automatic operation with top-up controller

• Five HDPE tank/volume options 1,200-6,000Litres

• 110mm or 160mm main channel connection

• 3 inlet, self cleaning, leaf anddebris filter for roof areas up to 500m2

• Overflow with vermin grill skims floating particles (e.g. pollen) promoting water quality

• Pre-primed submersible pump system ready for use when the system is connected to mains power

System Options

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Features:

Code Description

BMH1200 1,200 Litre Home Tank Complete

BMH2000 2,000 Litre Home Tank Complete

BMH3500 3,500 Litre Home Tank Complete

BMH6000 6,000 Litre Home Tank Complete

BMH1500LP 1,500 Litre Low Profile Home Tank Complete

Garden System

Access coverComplete with steel access cover and

PP frame for ease of maintenance

Tank/pipe connectionFor power cable and pump discharge

Filter unit

InletOne of three optional inlets

Main overflow

Submersible pumpSelf priming with integrated water

level control switch

Filter overflowDischarges filter overflow to

surface water drain

Calming inletSits at base of tank to diffuse flow

and prevent disturbance

As the name suggests, the Garden only system collects, filters and supplies stored rainwater for garden use. Rainwater fromthe tank is supplied via a self priming submersible pump located within the tank. All Garden systems feature a 20mm pressurepipe system. The specially marked pipe from the tank is easily connected to either a garden tap or hose connection for use.Because the rainwater is pressurised by the pump it can be used in the garden or connected to marked taps, most domesticsprinklers/irrigation watering systems and most jet wash connections. All Garden systems come with 10 metres of pump power cable and a standard 230v 3 pin plug which are plugged into the mains supply to power the pump.

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• Five HDPE tank/volumeoptions 1,200-6,000 Litres with lockable covers

• 3 inlet, self cleaning, leaf and debris filter

• Mains powered pump

• Secondary pump filter

• Supply pipe easily connects to garden tap or hoseconnection

Features:

System Options

Code Description

BMG1200 1,200 Litre Garden Tank Complete

BMG2000 2,000 Litre Garden Tank Complete

BMG3500 3,500 Litre Garden Tank Complete

BMG6000 6,000 Litre Garden Tank Complete

BMG1500LP 1,500 Litre Low Profile Garden Tank Complete

• Overflow and self calming inlet

• Suitable for existing and new developments

• Power is supplied by a standard mains socket

Rainwater Harvesting Range & Dimensions

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