It takes about four seconds for a chemical splash to start damaging the surface of your eye. Four seconds. That is less time than it takes to read this sentence. On a construction site, where cement dust, concrete splashes, solvents, and cutting debris are part of daily life, eye injuries are not rare events. They happen all the time.
The difference between someone keeping their sight and losing it often comes down to one thing: how quickly the affected eye was flushed out with clean water .That is why eye wash stations on construction sites are not optional. They are a critical piece of safety infrastructure that every site needs.
But here is the problem. A lot of construction sites either do not have them, have them in the wrong place, or have them but nobody knows where they are. And when something goes wrong, these gaps become critical. Let us break this down properly.
Why Eye Injuries Are So Common on Construction Sites
Construction is one of the most hazardous industries for eye injuries. Workers are grinding metal, cutting concrete, mixing cement, working with adhesives, handling solvents, and operating in dusty conditions for hours at a time.
Cement is a big one. Wet cement is highly alkaline, and when it splashes into someone’s eye, it keeps burning. The longer it sits there, the more damage it does. Alkaline burns are worse than acid burns for the eyes since the chemical keeps penetrating deeper into the tissue over time.
Dust and small particles from angle grinders, concrete saws, and demolition work are another constant risk.
Chemical splashes from paints, thinners, adhesives, and cleaning agents round out the list. Put all of this together and you start to see why having an eye wash station within reach is non-negotiable on any construction site.
What Is an Eye Wash Station and How Does It Work
An eye wash station is a piece of safety equipment designed to flush contaminants out of the eyes using a steady flow of clean water or saline solution. The basic concept is simple: when something gets in your eyes, you need to wash it out immediately, and you need to keep washing for at least 15 minutes.
That 15-minute window is not a suggestion. It is backed by medical research and written into safety standards around the world. Short bursts of water are not enough. The contaminant needs to be flushed thoroughly, which means sustained flow over an extended period.
Gravity-Fed Eye Wash Stations
These are the most common type on construction sites. A tank mounted on a wall or a stand holds clean water or saline solution. When activated, gravity pushes the water down through nozzles that direct the flow into the eyes. They do not need plumbing or mains water, which makes them perfect for remote or temporary sites.
The downside is capacity. Most gravity-fed units hold between 7 and 35 litres, which might not be enough for a full 15-minute flush depending on the flow rate. Bigger tanks solve this but take up more space.
Plumbed-In Eye Wash Stations
If your construction site has mains water, a plumbed-in eye wash station gives you unlimited flow. These units connect directly to the water supply and deliver a consistent flow of tepid water. They are the gold standard for permanent or long-term sites.
The catch is that you need reliable water pressure and supply. If the mains go down, so does your eye wash station. And on a construction site, water supply interruptions are not exactly uncommon.
Portable Squeeze Bottle Eye Wash Units
These are small, handheld bottles filled with saline solution. Workers can carry them in their toolbelts or keep them at their workstation. They are useful for immediate first response, but they do not replace a full eye wash station. Most squeeze bottles hold 500ml to 1 litre, which is nowhere near enough for 15 minutes of flushing.
Think of squeeze bottles as the first step. They get the flushing started quickly, but the worker still needs to get to a proper station for a full flush.
Combination Shower and Eye Wash Stations
On sites where chemical exposure can affect the whole body, combination units provide both a full-body shower and an eye wash station in one unit. These are more common in industrial and manufacturing settings, but they make sense on construction sites where large volumes of chemicals are being handled.
Where to Place Eye Wash Stations on a Construction Site
Placement matters more than most people think. The general rule is that an eye wash station should be within 10 seconds of walking distance from any hazardous area. In practical terms, that works out to about 16 meters on a flat surface with no obstacles.
Near mixing zones where cement, grout, or chemicals are being prepared is a must. Close to cutting and grinding stations where debris flies around is another obvious spot. If your site has a chemical storage area, put a station right next to it.
The path from the hazard to the station needs to be clear at all times. No stacked materials, no parked machinery, no locked doors. When someone has chemicals in their eyes, they are probably not seeing where they are going. The route needs to be straight, obvious, and unobstructed.
Mark the station clearly with signage that is visible from a distance. Use the standard green and white safety signs so workers can spot them even through blurred vision.
What South African Law Says About Eye Wash Stations
The OHS Act puts a broad duty on employers to provide a safe working environment. While the Act does not spell out the exact specifications for eye wash stations on every type of site, the general duty clause means that if there is a foreseeable risk of eye injury, you are expected to have the right equipment in place.
SANS 10400 and related workplace safety codes provide more specific direction on what is expected. When a Department of Labour inspector visits your site, they are going to look at whether you have identified eye hazards in your risk assessment and whether you have put controls in place to deal with them. An eye wash station at the right location, in working condition, with trained workers, ticks a lot of those boxes.
Getting caught without the appropriate eye wash station after an injury puts you in a very bad position. You are looking at fines, potential stop-work orders, and liability claims that can run into hundreds of thousands of rands.
How to Choose the Right Eye Wash Station for Your Site
Temporary vs Permanent Sites
If you are on a site for a few weeks, a gravity-fed or portable unit is your best bet. Quick to set up, easy to move, and no plumbing required. For long-term builds that run for months or years, a plumbed-in station gives you better reliability and unlimited water supply.
Water Supply Considerations
No mains water? Then gravity-fed is your only real option. Make sure the tank is big enough for a 15-minute flush, or have multiple units spread around the site. If you have got mains water, a plumbed-in unit with a backup gravity-fed station gives you redundancy.
Temperature and Hygiene Factors
The water in your eye wash station should be tepid. Not ice cold, not hot. Somewhere between 16 and 38 degrees Celsius is the accepted range. Cold water can cause the eyes to clamp shut, which defeats the whole purpose. Hot water can make chemical burns worse.
Stagnant water breeds bacteria. If your gravity-fed unit sits in the sun for weeks without being used, the water inside becomes a health risk on its own. Regular flushing and refilling is required.
Budget and Practicality
Gravity-fed units are the most affordable option and work well for most construction sites. Plumbed-in units cost more upfront but save you the hassle of constant refilling. Squeeze bottles are the lowest cost but should only be seen as a supplement, never a replacement.
How to Use an Eye Wash Station Properly
When a chemical or particle gets into someone’s eyes, speed is everything. Get to the station as fast as possible. If you have got a squeeze bottle on hand, start flushing immediately and keep going as you move towards the main station.
Hold the eyelids open with your fingers. This feels unnatural, but it is necessary. The natural reaction is to squeeze the eyes shut, which traps the contaminant inside. Force the lids open and let the water flow directly over the eyeball.
Flush for a minimum of 15 minutes. It feels like a long time when you are standing there with water running over your eyes, but stopping early can mean the difference between a full recovery and permanent damage.
After flushing, do not rub the eyes. Do not apply any drops or ointments. Cover the eyes loosely with a clean pad and get medical attention as soon as possible. If you know what substance caused the exposure, tell the medical team. That information helps them decide on the right treatment.
Maintaining Your Eye Wash Station
Weekly Flushing and Inspection
Every week, activate the station and let the water run for at least two minutes. This flushes out stale water, checks that the nozzles are working, and confirm the flow rate is adequate. Log every inspection with the date and the name of the person who did it.
Checking Water Temperature
If your station is outdoors, the water temperature will change with the weather. In summer, water sitting in a tank in direct sunlight can get dangerously hot. In winter, it can drop below the recommended range. Position the unit in a shaded area where possible, or use insulated tanks.
Replacing Expired Saline Solutions
If your station or your squeeze bottles contain saline solution, check the expiry dates regularly. Expired saline can harbor bacteria and may not provide the sterile flush that an injured eye needs.
Keeping the Area Clear and Accessible
Construction sites are busy and things get moved around constantly. Make it someone’s job to check that the path to the eye wash station is clear at the start of every shift. A blocked station is as good as no station at all.
Mistakes That Can Cost You During an Eye Emergency
The most common mistake is stations being blocked by equipment or materials. It happens all the time on construction sites. Someone parks a wheelbarrow in front of the unit, or stacks bags of cement right next to it, and suddenly the 10-second access window becomes 60 seconds or more.
Stagnant water is another problem. A gravity-fed station that has not been flushed in weeks is a breeding ground for bacteria. Using contaminated water to flush an eye injury can cause a secondary infection on top of the original damage.
Workers not knowing where the station is located is surprisingly common. On big sites with lots of subcontractors coming and going, the site induction needs to cover the location of every eye wash station. If people do not know where it is, it does not matter how good the equipment is.
And finally, using bottled water or a garden hose instead of a proper station. In an emergency, any water is better than no water. But bottled water runs out in seconds, and a garden hose delivers uncontrolled, potentially dirty water at whatever temperature it happens to be. Neither is a substitute for proper equipment.
An eye wash station costs a fraction of what a single eye injury claim will set you back. More than that, it can save someone’s sight. Get the right stations for your site, put them in the right places, maintain them properly, and make sure every person on that site knows exactly where they are. It is one of the simplest safety investments you can make, and it pays for itself the first time someone needs it.