Portable vs Plumbed Eyewash Station: 4 Questions That Decide It (With OSHA Rules and Real Prices)
A plumbed eyewash station is the right buy when the hazard sits in one place, a potable water line can reach it, and the water arriving at that line is tepid. A portable eyewash station is the right buy when any one of those three is missing. On Warehouse Gear Hub, a plumbed Hughes wall-mounted eye/face wash is $520.00, a portable Hughes 10 gallon gravity-fed station is $240.00, the 16 gallon gravity-fed station is $420.00, and the stainless 15 gallon pressurized station is $1,500.00. The four questions below take you from the hazard to the part number, with the OSHA rule quoted from 29 CFR 1910.151(c), the distance and temperature guidance quoted from OSHA's own letters of interpretation, and every flow rate and pressure from Hughes' spec pages.
- What does OSHA require for an eyewash station?
- Question 1: Is there a potable water line within reach of the hazard?
- Question 2: Does the hazard stay in one place?
- Question 3: Will the water be tepid when someone needs it?
- Question 4: Who will do the weekly checks and the refills?
- Which eyewash station should you buy?
- Frequently asked questions
What does OSHA require for an eyewash station?
One sentence. 29 CFR 1910.151(c) reads: "Where the eyes or body of any person may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes and body shall be provided within the work area for immediate emergency use." It does not say plumbed or portable, and it does not give a flow rate, a duration, or a distance in feet. OSHA fills those gaps with ANSI/ISEA Z358.1 and with its own letters.
On ANSI, OSHA's April 18, 2002 letter is direct: "ANSI standards become mandatory OSHA standards only when, and if, they are adopted by OSHA; ANSI Z358.1 was not adopted by OSHA." The same letter says the agency "has often referred employers to ANSI Z358.1 as a source of guidance," that "OSHA has adopted no specific requirements regarding flow rates," and that any citation "must be issued pursuant to 29 CFR 1910.151(c)." An earlier 1994 letter tells compliance officers that "severity of injury, time of exposure, and number of employees exposed are all considered" when deciding what counts as suitable.
On distance, OSHA has two positions on record and you should plan to the stricter one. Its August 22, 1996 letter states: "OSHA interprets the phrase 'within the work area' to require that eye/face wash units and emergency deluge showers both be located within 10 feet of unimpeded travel distance from the corrosive material hazard or, in the alternative, within the distance recommended by a physician or appropriate official the employer consulted." Its March 8, 2002 letter on forklift battery charging areas points to ANSI Z358.1-1998 instead: no more than 10 seconds to reach the unit, and "where a strong acid or caustic is used, the unit should be immediately adjacent to the hazard." Justrite, whose site hosts the Hughes spec sheets, puts the 10 seconds at "approximately 55 feet" on the same level as the hazard, with valves that go "from 'off' to 'on' in one second or less" and a flow that "remains on without the use of the operator's hands."
The 1996 letter also defines the trigger for all of this. A corrosive is "a chemical that causes visible destruction of, or irreversible alterations in, living tissue by chemical action at the site of contact." Forklift battery electrolyte, drum-stored acids and caustics, and concentrated cleaning chemicals all qualify, which is why the question in a warehouse is rarely whether you need a station. It is which kind.
Question 1: Is there a potable water line within reach of the hazard?
This question decides most purchases on its own. A plumbed unit is a valve and a bowl on the end of a water line, so it needs that line to exist within the 10 second (or 10 foot) reach of the hazard, and it needs pressure behind it. Per Justrite's spec page for the Hughes 45GEW wall unit, the supply is a 1/2 inch NPT inlet at 29 to 87 psi, and the unit delivers 3 US gallons per minute (11.4 L/min) through the eye/face diffusers. The pedestal 45GP uses a 1-1/4 inch NPT low-level inlet at the same 29 to 87 psi and the same 3 gpm. Both are UL Classified to ANSI Z358.1-2014.
No line, or a line that cannot be run to the hazard without a plumber and a permit, means a self-contained unit. Hughes makes two kinds. Gravity-fed tanks hang on the wall or sit on a bench and release water through a pull handle: the 10GFEW and 16GFEW both flow 2 L/min (0.55 gpm) for 15 minutes per Justrite. The pressurized 15GEW is a 15 US gallon (56.8 liter) stainless steel vessel charged with air to 30 to 80 psi that flows 1.5 L/min (0.4 gpm) for 15 minutes through a push plate. Those flow rates line up with the two ANSI targets Lab Manager's Z358.1 summary lists: 0.4 gpm for an eyewash and 3.0 gpm for an eye/face wash, each for 15 minutes.
| Model we stock | Type | Water supply | Flow, per Justrite | Activation | Price as listed |
|---|---|---|---|---|---|
| Hughes 45GEW wall-mounted eye/face wash, covered bowl | Plumbed | 1/2 in NPT, 29 to 87 psi | 3 gpm (11.4 L/min), eye and face | Pull down on lid | $520.00 |
| Hughes 45GP pedestal eye/face wash, low-level inlet | Plumbed | 1-1/4 in NPT, 29 to 87 psi | 3 gpm (11.4 L/min), eye and face | Pull down on lid, optional foot treadle | $840.00 |
| Hughes 10GFEW OptiWash 10 gallon gravity-fed | Portable, self-contained | 10 gal tank, refilled by hand | 0.55 gpm (2 L/min) for 15 min | Pull handle | $240.00 |
| Hughes 16GFEW 16 gallon gravity-fed | Portable, self-contained | 16 gal tank, refilled by hand | 0.55 gpm (2 L/min) for 15 min | Pull handle | $420.00 |
| Hughes 15GEW 15 gallon pressurized, stainless | Portable, self-contained | 15 gal vessel, air charged to 30 to 80 psi | 0.4 gpm (1.5 L/min) for 15 min | Push plate | $1,500.00 |
Read the flow column against the hazard. A gravity tank flows 0.55 gpm. The plumbed 45GEW and 45GP flow 3 gpm across the eyes and face, more than five times as much, which is the unit a strong acid or caustic calls for when the water line is there to feed it.
3 gpm eye/face flow, 1/2 in NPT inlet at 29 to 87 psi, pull-down lid activates the flow and keeps dust off the diffusers, chrome-plated brass valve, UL Classified to ANSI Z358.1-2014, inspection record tag included.
Question 2: Does the hazard stay in one place?
A plumbed unit is bolted to the wall or the floor. If the corrosive is used at one bench, one dispensing station, or one battery charging bay, that is fine, and the 10 second reach is measured once. If the hazard moves, the station has to move with it, and only a self-contained unit can.
Forklift battery charging is the warehouse case OSHA has answered in writing. Its March 2002 letter confirms that 29 CFR 1910.178 has no eyewash requirement of its own, so 1910.151(c) governs the charging area, with ANSI's 10 second reach as the guidance. A fixed charging bay with a water line nearby takes a plumbed 45GEW on the wall. Chargers on a mezzanine, a leased dock with no plumbing, or a bay you rearrange each season take a 16GFEW, which per Justrite hangs on its concealed wall bracket or sits on a bench and has carrying handles molded into the tank. Our electric vs propane forklift guide covers the rest of the charging-area rules.
The same logic applies to drum dispensing. A 55 gallon drum of caustic on a spill pallet that gets moved by pallet jack between the receiving dock and the mix room is a moving hazard. Put a gravity-fed unit on the wall at each stop, or size a single unit to travel with the drum.
16 gallon PVC tank, 2 L/min (0.55 gpm) for 15 minutes, pull-handle activation, concealed wall bracket or tabletop placement, carrying handles, wide fill opening for cleaning and refills, no plumbing required.
Question 3: Will the water be tepid when someone needs it?
ANSI Z358.1 calls for tepid flushing fluid, which Justrite states as "60 F to 100 F (16 C to 38 C)." OSHA does not set a number, but its June 21, 1994 letter makes temperature enforceable from both ends: "An installation that would be hazardous to an employee due to elevated water temperatures would constitute a violation of the OSHA standard at 1910.151(c)," and where freezing is possible, the ANSI guidance OSHA cites requires the equipment to be protected from freezing or freeze-protected equipment to be installed. Its 2002 letter adds that the employer is the one responsible for assessing water temperature.
That is where a plumbed unit picks up cost. A cold-water line in an unheated dock delivers whatever the line holds, and in winter that is cold water. Getting tepid water out of a 45GEW means a hot line and a thermostatic mixing valve ahead of it, or a location in a conditioned room. Justrite lists the ambient operating range for the 45GEW and 45GP as 41 F to 95 F, so neither belongs in a freezing area to begin with.
A self-contained unit stores room-temperature water, so it delivers whatever the room is. A 16GFEW in a heated warehouse office or mix room is tepid by default. The same tank in an unheated yard shed is not, and the 15GEW carries the same 41 F to 95 F ambient range as the plumbed units. Justrite lists heated and insulated jackets for the 16GFEW and 15GEW for that case; they are not on our site as of this writing, so call us for a quote.
Question 4: Who will do the weekly checks and the refills?
This is the question buyers skip, and it is the one that decides whether the station works in year two. Per Lab Manager's summary of Z358.1, plumbed units are activated weekly, self-contained units are "visually checked weekly to determine whether flushing fluid needs changing," and every unit gets a full measured inspection once a year. The weekly plumbed test is a pull on the lid and a look at the flow. The weekly portable check is a look at the water, and on a schedule, a drain, a scrub, and a refill.
The refill interval comes from the preservative. Justrite's Hughes eyewash additive is "a water preservative solution for use with self-contained eye/face wash stations" that "prevents bacterial growth," and "each 8-oz bottle preserves from 5-20 gallons of water for up to 120 days." So a gravity tank on additive is a four-times-a-year job. Without additive, Lab Manager puts the change at "every 90 to 180 days depending on the manufacturer," and a green tank is a sign you waited too long.
Capacity is the other check, and the math is short. A 15 minute flush at the unit's rated flow is the water the tank has to hold:
- 10GFEW: 0.55 gpm x 15 min = 8.25 gal, from a 10 gal tank.
- 16GFEW: 0.55 gpm x 15 min = 8.25 gal, from a 16 gal tank, which is the margin you want if the tank was last topped off a while ago.
- 15GEW: 0.4 gpm x 15 min = 6 gal, from a 15 gal vessel that is only as ready as its air charge, so the weekly check includes the pressure gauge.
Per Justrite, the 10GFEW is 29.5 x 18 x 7.25 inches and the 16GFEW is 25.1 x 21.3 x 11.3 inches (both PVC, both pull handle), and the 15GEW stands 41.2 inches tall on a 15.9 inch square footprint with a 1/2 inch NPT port for the optional OPT50 drench hose. Sixteen gallons of water weighs about 133 pounds before you count the tank, so mount the empty tank and fill it where it hangs.
10 gallon high-visibility orange PVC tank, 2 L/min (0.55 gpm) for 15 minutes, pull-handle activation, concealed wall bracket, UL Classified to ANSI Z358.1-2014, 29.5 x 18 x 7.25 in.
15 US gallon stainless steel vessel, air charged to 30 to 80 psi, 1.5 L/min (0.4 gpm) for 15 minutes, push-plate activation, 316L stainless valve, 1/2 in NPT port for the OPT50 drench hose, 41.2 in tall.
Which eyewash station should you buy?
Match the hazard to the line that describes it.
- Fixed hazard, water line within 10 seconds, conditioned space: Hughes 45GEW wall-mounted eye/face wash ($520.00). 3 gpm, 1/2 in NPT, 29 to 87 psi. Add a thermostatic mixing valve if the cold line runs under 60 F.
- Fixed hazard, no wall to hang it on, plumbing comes up through the floor: Hughes 45GP pedestal eye/face wash ($840.00). Same 3 gpm, 1-1/4 in NPT low-level inlet, galvanized steel pipework.
- One bench or one charging bay, no plumbing, tight budget: Hughes 10GFEW OptiWash ($240.00). 10 gallons, 0.55 gpm for 15 minutes, refilled four times a year on additive.
- A hazard that moves, or a spot where you want capacity margin: Hughes 16GFEW ($420.00). 16 gallons, same flow, carrying handles, wall bracket or bench.
- Harsh environment, corrosive vapor, or a drench hose for the body: Hughes 15GEW pressurized ($1,500.00). Stainless vessel, 0.4 gpm for 15 minutes, OPT50 hose port.
- Strong acid or caustic with no water line at all: call before you buy. OSHA's guidance puts the unit immediately adjacent to that hazard and the flow it calls for is the 3 gpm eye/face rate, so the answer is a plumbing run or a self-contained unit with a drench hose, both of which we quote.
Every Hughes unit above is in the Hughes collection, alongside the pedestal and stainless fountain models. If the bay lands between two lines, call 1-800-794-1049, 8 AM to 4 PM Central, with the chemical, whether a water line is within 55 feet, and the room's winter temperature. We will size it in one call and send a written quote for approval.
Frequently Asked Questions
Do portable eyewash stations meet OSHA requirements?
Yes, when they are suitable for the hazard. 29 CFR 1910.151(c) requires "suitable facilities for quick drenching or flushing of the eyes and body" within the work area and does not specify plumbed or portable. OSHA judges suitability against ANSI Z358.1 as guidance, so a self-contained unit that delivers 15 minutes of tepid flushing fluid within 10 seconds of the hazard, kept clean and full, satisfies the rule. The Hughes 10GFEW, 16GFEW, and 15GEW are each rated for a 15 minute flush per Justrite's spec pages.
How far can an eyewash station be from the hazard?
OSHA's 1996 letter of interpretation reads "within 10 feet of unimpeded travel distance from the corrosive material hazard," or a distance a physician or appropriate official recommends. Its 2002 letter on battery charging areas points to ANSI Z358.1's guidance of no more than 10 seconds to reach the unit, which Justrite states as approximately 55 feet on the same level, and immediately adjacent for a strong acid or caustic. Plan to the 10 second rule everywhere and to immediately adjacent for strong corrosives.
How much water does an eyewash station need for 15 minutes?
Rated flow times 15. The Hughes gravity-fed units flow 0.55 gpm, so they need 8.25 gallons, which is why the smallest one holds 10. The pressurized 15GEW flows 0.4 gpm and needs 6 gallons from its 15 gallon vessel. A plumbed 45GEW flows 3 gpm, or 45 gallons over 15 minutes, all of it from the water line.
How often do you change the water in a portable eyewash station?
Every 120 days on Hughes additive, which Justrite says preserves 5 to 20 gallons per 8 oz bottle, with a visual check every week. Without a preservative, Lab Manager's Z358.1 summary puts the interval at 90 to 180 days depending on the manufacturer. Drain, scrub, refill, and dose in one session, with the tank on its bracket, since 16 gallons of water weighs about 133 pounds.
Does a forklift battery charging area need an eyewash station?
Yes. OSHA's March 2002 letter states that 29 CFR 1910.178 does not itself specify eyewash equipment for charging areas, so 29 CFR 1910.151(c) applies, with ANSI Z358.1's 10 second reach as the guidance. A plumbed 45GEW on the wall of a fixed charging bay or a 16GFEW on a bracket next to a mobile charger both meet that, provided the water is tepid in that room in winter.
How much does an eyewash station cost?
On Warehouse Gear Hub as of this writing, the Hughes 10GFEW 10 gallon gravity-fed station is $240.00, the 16GFEW 16 gallon station is $420.00, the 45GEW plumbed wall-mounted eye/face wash is $520.00, the 45GP plumbed pedestal is $840.00, and the 15GEW stainless pressurized station is $1,500.00. A plumbed unit adds the plumbing run and, where the supply is cold, a mixing valve; a portable unit adds additive four times a year.
Answer the four questions, then buy once
Plumbed wall and pedestal eye/face washes, gravity-fed tanks, and pressurized stainless units from Hughes, with flow rate, pressure, and ANSI classification on every product page.
Shop Hughes eyewash stations →Questions on placement, water temperature, or a multi-unit quote: call 1-800-794-1049 (8 AM to 4 PM Central) or email info@warehousegearhub.com.