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DrainSAFE

A man is engaging the DrainSAFE unit by turning the handle to isolate the storm drain from the spill that has occurred in a parking lot

DrainSAFE™ can save you money in environmental fines and costly clean ups. This innovative device is a simple and cost effective in-pit storwmater management solution. Satisfied customers have been using DrainSAFE™ for many years to prevent pollution from leaving storm drains.

Stop spills from leaving your site

Respond quickly to polluting discharges and spill emergencies. DrainSAFE™ is a unique above ground manual stormwater shut down mechanism. Turn the handle to close the valve and it becomes an isolation device. One person can quickly shut the DrainSAFE unit to contain spills in an emergency.

As an act of prevention, enable the closed position of DrainSAFE™ to isolate a stormwater pit before undertaking any activities that risk a potential spill. Likely scenarios include places where liquids are being unloaded or moved, decanted from tanks into containers, at fueling stations and where trucks carrying liquids will be parked.

Chatoyer DrainSAFE exploded view showing labelled parts of the device

Control what is entering the stormwater system

DrainSAFE™ will trap oils, sediment and gross pollutants 24/7. The practical design allows water to flow through while sediment and gross pollutants are retained in the body of the unit. Hydrocarbons are trapped by an absorbent material secured within the diffuser body.

Comply with stormwater regulations

Avoid harsh fines, penalties and negative press from stormwater pollution. DrainSAFE™ can deliver on corporate objectives to meet standards enforced by the EPA. Install DrainSAFE™ in every drain pit at your premises for maximum effectiveness and tick boxes for stormwater pollution management and spill response.

Nominal investment with low running costs

The DrainSAFE™ unit is serviceable and can be easily cleaned. It’s important to conduct routine inspections and cleaning to maintain optimal flow rates. Supported by a proper inspection and maintenance schedule, DrainSAFE™ will provide reliable, long term environmental compliance.

How does DrainSAFE™ work?

The DrainSAFE™ is a serviceable unit that retrofits inside a drain pit. Once installed it sits entirely beneath the drain grate. It does not impede wheel or foot traffic over the grate.

The mechanism that closes the unit and stops flow into the stormwater system is engaged manually by extending and turning the handle within the unit.

The stainless steel handle stows in a protective sheath within the diffuser body and beneath the grate. Once engaged, the telescopic handle will extend above ground level out of the grate.

Debris is captured in the diffuser body and hydrocarbons are absorbed by a material secured within the diffuser body.

DrainSAFE™ has 2 positions –  Open and Closed

In the OPEN position the DrainSAFE™ device will trap sediment, debris and hydrocarbons. Stormwater will continue to flow through the unit and into the stormwater system. This is ideal for continuous environmental compliance during normal operations on most sites.

In the CLOSED position the DrainSAFE™ unit becomes a stormwater isolation device that will block the drain and stop flow through the device. Left in the closed position, storm water will not flow through the device which could lead to flooding. Ideally a DrainSAFE™ unit is closed only during risky activities or in response to a spill emergency.

Chatoyer DrainSAFE empty diffuser cross section showing the weir system

Here’s the internal compartment when it’s empty.

The inside compartment of a DrainSAFE has been removed. It is full of rubbish and sediment and is doing it's job correctly

Look at what was captured from one stormwater drain in just 6 months!

DrainSAFE™ Specifications

  • Flow rate 33L/sec
  • 556mm deep (barrel)
  • 625mm Dia including the top lip
  • Manufactured tolerance +/- 2mm
  • Weight of unit 22kg
  • Capacity 80L

DrainSAFE 500
with Installation Kit

CHDS02

Product Information
Diameter Width: 625mm
Diameter Height: 775mm

DrainSAFE 500
with Installation Kit

CHDS06

Product Information
Diameter Width: 1.3m
Diameter Height: 1.3m

DrainSAFE 500 Unit Only

CHDS05

Product Information
Diameter Width: 625mm
Diameter Height: 775mm

Oil Filters for DrainSAFE

CHDS07
FEATURESADVANTAGESBENEFITS
Retrofits into existing pit.Easy to install.No civil works required. Minimal disruption to site activity. Less costly to install compared to alternative stormwater isolation systems.
Top of the line, heavy duty, leak proof and corrosion resistant isolation valve.Tough and long lasting.Reliable protection both open and closed.
Flow rate of 33 litres per second.Allows stormwater to flow through.Unlikely to cause flooding when appropriately serviced.
Drain pit isolation that closes completely in seconds.Respond quickly in an emergency to stop. spills from entering the stormwater system.Close quickly anytime to protect your site during high risk liquid handling and transport activities. Avoid fines and costly clean ups.
Submersible telescopic hide away handle.Shut off is at the site of the spill and can be engaged quickly in an emergency.Won’t be damaged by passing traffic or wheels. Easy to operate, no force required. Simple mechanism to close valve.
Materials are UV stabilised, corrosion resistant and chemical resistantTough and Long lasting unit that can withstand exposure to a wide range of chemicalsLong life span suitable for a variety of applications – greater than 10 years when regularly serviced. Can withstand exposure to the elements. Ok for acids and saline liquids.
Absorbent to trap hydrocarbons.Retains oil sheen 24/7.Traps hydrocarbons but not water. Easy to replace. Another tick for meeting compliance.
Held in place with heavy duty HDPE sheet.Easy to cut to size during installation. Sturdy, reliable support for a unit full of stormwater, a spill and/or gross pollutants.Solid material to ensure DrainSAFE is secure and stable in the pit. Slightly flexible yet rigid material that can withstand vibration and impacts.
Hi vis colour.Easy to see in the drain pit.Identifiable by personnel for inspection once installed.
Removeable internal compartment.Easy to clean and maintain.Routine cleaning reduces impact on flow rate.
Serviceable unit.Can be maintained by site personnel which is economical and convenient.Long term return on investment.
Manually operated from the drain pit.Minimal training required for site personnel.Won’t be affected by power outages or battery drain. No building access required.
All parts supplied for installation.Delivered ready to install.No need to source installation components.
Long product life.Greater than 10 year lifespan when regularly serviced.Nominal investment for long term protection and environmental compliance.
Proven track record.Reliable protection 24 hours a day, 365 days a year.Installations across Australia have proven the efficacy and long lifespan of the DrainSAFE unit.

Track Record

The DrainSAFE™ stormwater isolation device has been very successful in it’s original design for both spill control and pollution prevention. Installations across Australia have proven the efficacy and long lifespan of the DrainSAFE™ unit.

DrainSAFE™ in use at Victoria International Container Terminal (published by Daily Cargo News, September 2020).

FAQ

Are all the components for full installation provided?

Yes, all components including fixings and sealants. Your installer will need their own tools to perform the installation.

Why is the unit round and how does it fit into a square drain pit?

The round shape ensures there are no corners for sediment and other debris to get stuck in. The round shape is also more friendly to increasing flow through the unit.

The DrainSAFE™ device is smaller than the drain

pit so there is space for the stormwater to exit the

bottom through the isolation valve and continue to

the outflow in the drain pit.

In order to fit the DrainSAFE™ unit into a drain

pit, a square piece of HDPE (called a skirt) with a

round hole for the DrainSAFE™ unit is provided.

This sheet can be cut to the size of the drain pit

and fitted to the walls of the pit. This HDPE skirt

ensures the pit is sealed and water is directed into

the DrainSAFE™ device.

How often does the unit need to be serviced?

It varies. Servicing schedules will differ depending on the location of the unit and can usually be judged visually by simply looking into the pit through the grate. Once the unit has been installed, a regular inspection routine is advised. A servicing schedule can be set based on findings of the regular inspections.

The hydrophobic boom inside the diffuser can be replaced at the regular intervals appropriate to the site and the expected level of hydrocarbon contamination in the stormwater.

Will the unit affect flow rates?

Yes. The DrainSAFE™ unit has a flow rate of 33litres per second when empty. If the diffuser holes become partially blocked, the flow rate is minimally impacted. The Computational Fluid Dynamics analysis reports a 22% loss of flow rate when the holes of the diffuser weir are 50% blocked. The handle shaft in the unit is as an overflow that allows excess stormwater to escape during rain events.

Does the unit come in smaller sizes?

No. The unit comes in one standard size. Research is currently underway to determine what size to make a smaller DrainSAFE™ unit that would suit common small sized pits. A smaller option is likely to be offered in the future.

Will the unit cope with abrasive and corrosive materials?

Yes. The unit is constructed from HDPE and high grade 304 stainless steel which will not be affected by most chemicals. If there are any concerns of compatibility with a specific chemical, more information can be requested from the manufacturer of the HDPE in relation to the chemical in question.

Australian Made. specialised fabrication.

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