Understanding rainwater harvesting

Water is our most precious resource. By harvesting our abundant rainfall, we are helping the environment
by using this resource sustainably. With environmental issues such as global warming, changes in weather
patterns, and increasing consumption of water, we must be proactive about how to reduce, reuse and
retain water.

Where can rainwater be harvested?

  • Rooftop

  • Podiums

  • Surface Run-off

Why use RWHS?

Save the earth and save on water bills at the same time

  • Save On
    Water Bills

  • Backup
    Water Supply

  • Reduce Chances
    Of Flash Floods

  • Protect
    The Environment

Bacfree Rainwater Harvesting System

Do you know?

In 2012, the Malaysian Uniform Building By-Laws 1984 requires all newly-built detached buildings as well as bungalows and
semi-detached bungalows with a roof area of 100sqm and above to be equipped with rainwater harvesting systems to
capture rainwater for reuse.

Bacfree supplies, designs and installs rainwater harvesting
systems that meet all regulatory requirements!

Call us now for a free consultation

Rainwater harvesting system is an innovative and
suitable alternative approach of water supply for:

  • Commercial Buildings

  • Hotels

  • Shopping Malls

  • Public Buildings

  • High Rise

  • Landed Properties

With your own rainwater harvesting system,
rainwater can be used for:

  • Toilet Flushing

  • Laundry Washing

  • General Cleaning

  • Vehicle Washing

  • Farm Irrigation And Usage

  • Fire-fighting Water Reservoirs

  • Industrial And Commercial Applications, such as:

    Cooling tower
    Machine cleaning
    Industrial process
    Irrigation and humidification

Project reference

  • Four Seasons Hotel

  • IKEA Tebrau Johor

  • KDU University College
    Glenmarie

  • Setia Ecohill

  • Sime Darby Medical Centre

  • Toyota Manufacturing Plant

  • Pertubuhan
    Akitek Malaysia (PAM)

  • SP Setia Head Office

WISY 4-Step System
makes rainwater as clear as tap water

Bacfree’s WISY 4-Step System turns rainwater into clean, clear water that is safe to use in any home.
Rainwater is collected, filtered, and stored, ready for anytime you need it.

How does the WISY 4-Step System work?

Pre-tank filtration

  • Removes leaves, dirt and debris
  • Filters and stores up to 90% of rainwater
  • Remaining 10% used to clean the filter
  • Oxygenates water to reduce organic contaminants

Smoothed inflow and distribution

  • Calms water flow to protect the tank
  • Oxygenates water to ensure even distribution
    of oxygen to whole tank

Floating suction filter

  • Extracts water from the cleanest layer

Multisiphon overflow

  • Prevents scum on the water
  • Prevents backflow
  • Guards against vermin
  • Prevents odours

The WISY 4-Step System uses an elegantly simple design. It uses the laws of physics to create a highly
efficient system that needs very little maintenance, unlike other systems that often become clogged.

E-Brochure

Low maintenance + high effectiveness = worry-free usage

The unique vertical filters in WISY systems greatly reduce filter clogging, thus ensuring long service life with very
low maintenance. This is unlike other types of filters which quickly become clogged and require frequent cleaning.
The Vortex Filter sets water into a vortex movement to easily and safely filter fast flowing water.

  • High Efficiency

    Collects up to 90%
    of water

  • Low Maintenance

    Minimal clogging – most solids
    are easily flushed away

  • Hygienic Materials

    SUS304 stainless steel
    construction

  • Oxygen Enrichment

    Filtering process
    oxygenates water, which
    enhances its quality

  • Adjustable Outlet Angle

    Rainwater inlet and outlet
    can be freely rotated

  • Consistent Cross-sectional Area

    Cross-sectional diameter of down
    pipe remains unchanged,
    eliminating risk of clogging

E-Brochure

Accessories

You can install optional accessories to enhance your Bacfree Rainwater Harvesting System’s functions.

RainAid® Valve – automatic top-up valve

Automatically switches water supply from rainwater to
main water supply when water level is low.

Features at a glance:

  • Easy to install
  • Wokring pressure: 55 – 1000 kPa (4 – 150 psi)
  • Maximum water temperature 60°C

Slimline And Sleek Tanks

Bacfree’s customisable tanks are designed to fit in any
premise. Its tough UV-stabilised material prevents fungus
and moss growth as well.

Features at a glance:

  • External bracing – for added strength and
    impact resistance
  • Available in many colours

Need a custom water tank built for your project?

Customise your tank now

E-Brochure

Accessories

You can install optional accessories to enhance your Bacfree Rainwater Harvesting System’s function.

Big Boy Valve – for heavy duty systems

The Big Boy can fill a 30,000 litre tank in just 20 minutes!
You can adjust the minimum and maximum water levels yourself,
making it very suitable for a wide range of applications.

Features at a glance:

  • No water hammer – soft closing to protect fittings
  • Adjustable water levels – saves electricity and prolongs
    pump life
  • Patented self-cleaning mechanism – minimises blockages
  • Longtail – no tank fittings for thin walled tanks

Applications

  • Pump fed large storage tanks and / or reservoirs
  • Mains / gravity fed large storage tanks and / or reservoirs
  • As a backup water supply control valve, in the event of
    demand exceeding rainfall

First Flush Diverter Tank

Features at a glance:

  • Diverts initial rainfall to be drained through the constant flow valve
  • Improves rainwater quality
  • Reduces tank maintainence

Custom Tanks

Bacfree’s customisable tanks are designed to fit in any premise.
Its tough UV-stabilised material prevents fungus and moss
growth as well.

Features at a glance:

  • External bracing – for added strength and
    impact resistance
  • Available in various capacities

Need a custom water tank built for your project?

Customise your tank now

Understanding rainwater harvesting

Water is our most precious resource. By harvesting our abundant rainfall, we are helping the environment by using this resource sustainably. With environmental issues such as global warming, changes in weather patterns, and increasing consumption of water, we must be proactive about how to reduce, reuse and retain water.

Where can rainwater be harvested?

  • Rooftop

  • Podiums

  • Surface Run-off

Why use RWHS?

Save the earth and save on water bills at the same time

  • Save On
    Water Bills

  • Backup
    Water Supply

  • Reduce Chances
    Of Flash Floods

  • Protect
    The Environment

Bacfree Rainwater Harvesting System

Do you know?

In 2012, the Malaysian Uniform Building By-Laws 1984 requires all newly-built detached buildings as well as bungalows and semi-detached bungalows with a roof area of 100sqm and above to be equipped with rainwater harvesting systems to capture rainwater for reuse.

Bacfree supplies, designs and installs rainwater harvesting systems that meet all regulatory requirements!

Call us now for a free consultation

Rainwater harvesting system is an innovative and suitable alternative approach of water supply for:

  • Commercial Buildings

  • Hotels

  • Shopping Malls

  • Public Buildings

  • High Rise

  • Landed Properties

With your own rainwater harvesting system, rainwater can be used for:

  • Toilet Flushing

  • Laundry Washing

  • General Cleaning

  • Vehicle Washing

  • Farm Irrigation And Usage

  • Fire-fighting Water Reservoirs

  • Industrial And Commercial Applications, such as:

    • Cooling tower

    • Machine cleaning

    • Industrial process

    • Irrigation and humidification

Project reference

  • Four Seasons Hotel

  • IKEA Tebrau Johor

  • KDU University College Glenmarie

  • Setia Ecohill

  • Sime Darby Medical Centre

  • Toyota Manufacturing Plant

  • Pertubuhan Akitek Malaysia (PAM)

  • SP Setia Head Office

WISY 4-Step System makes rainwater as clear as tap water

Bacfree’s WISY 4-Step System turns rainwater into clean, clear water that is safe to use in any home. Rainwater is collected, filtered, and stored, ready for anytime you need it.

How does the WISY 4-Step System work?

The WISY 4-Step System uses an elegantly simple design. It uses the laws of physics to create a highly efficient system that needs very little maintenance, unlike other systems that often become clogged.

Low maintenance + high effectiveness = worry-free usage

The unique vertical filters in WISY systems greatly reduce filter clogging, thus ensuring long service life with very low maintenance. This is unlike other types of filters which quickly become clogged and require frequent cleaning. The Vortex Filter sets water into a vortex movement to easily and safely filter fast flowing water.

  • High Efficiency

    Collects up to 90% of water

  • Low Maintenance

    Minimal clogging - most solids are easily flushed away

  • Hygienic Materials

    SUS304 stainless steel construction

  • Oxygen Enrichment

    Filtering process oxygenates water, which enhances its quality

  • Adjustable Outlet Angle

    Rainwater inlet and outlet can be freely rotated

  • Consistent Cross-sectional Area

    Cross-sectional diameter of down pipe remains unchanged, eliminating risk of clogging

E-Brochure

Accessories

You can install optional accessories to enhance your Bacfree Rainwater Harvesting System's functions.

RainAid® Valve - automatic top-up valve

Automatically switches water supply from rainwater to main water supply when water level is low.

Features at a glance:

  • Easy to install
  • Wokring pressure: 55 - 1000 kPa (4 - 150 psi)
  • Maximum water temperature 60°C

Slimline And Sleek Tanks

Bacfree's customisable tanks are designed to fit in any premise. Its tough UV-stabilised material prevents fungus and moss growth as well.

Features at a glance:

  • External bracing – for added strength and impact resistance
  • Available in many colours

Need a custom water tank built for your project?

Customise your tank now

E-Brochure

Accessories

You can install optional accessories to enhance your Bacfree Rainwater Harvesting System's function.

Big Boy Valve - for heavy duty systems

The Big Boy can fill a 30,000 litre tank in just 20 minutes! You can adjust the minimum and maximum water levels yourself, making it very suitable for a wide range of applications.

Features at a glance:

  • No water hammer - soft closing to protect fittings
  • Adjustable water levels - saves electricity and prolongs pump life
  • Patented self-cleaning mechanism - minimises blockages
  • Longtail - no tank fittings for thin walled tanks

Applications

  • Pump fed large storage tanks and / or reservoirs
  • Mains / gravity fed large storage tanks and / or reservoirs
  • As a backup water supply control valve, in the event of demand exceeding rainfall

First Flush Diverter Tank

Features at a glance:

  • Diverts initial rainfall to be drained through the constant flow valve
  • Improves rainwater quality
  • Reduces tank maintainence

Custom Tanks

Bacfree’s customisable tanks are designed to fit in any premise. Its tough UV-stabilised material prevents fungus and moss growth as well.

Features at a glance:

  • External bracing - for added strength and impact resistance
  • Available in various capacities

Need a custom water tank built for your project?

Customise your tank now