What is a portable sink rental?
A portable sink is a self-contained unit with a built-in fresh water tank, a pump, a basin and a gray water tank underneath to catch the runoff. No plumbing hookup, no hose bib required. Some units include a small water heater for hot water portable sink service, which matters if crews are washing up after messy work or a caterer needs warm water for food prep. Others are cold-water only and built for basic handwashing.
These stack well with portable sink rental programs that already include a standard porta potty rental on site, since OSHA ties sanitation facilities to crew size rather than treating every job the same. Under OSHA 1926.51(c), construction sites need 1 toilet facility for 20 workers or fewer, scaling up as crew size grows, so a general contractor in Longmont needs this covered alongside a sink station. Where employees apply paints, coatings, herbicides or insecticides, OSHA 1926.51(f)(1) requires washing facilities specifically for that contaminant exposure. For general potable water supply, OSHA 1926.51(a)(1) requires an adequate supply at all places of employment. We size the water tank to your crew and duration so you are not refilling mid-shift.
Why rent a portable sink for hair washing or camping?
Because it is the only clean way to get real running water somewhere without a bathroom. A portable sink to wash hair works for camps, disaster relief staging, film sets and remote event sites where there is no building nearby. Camping portable sink units are compact, sit on a stand or table, and use a foot pump or small electric pump to move water from the fresh tank to the spigot. For camping porta potty setups near Longmont reservoirs or event grounds, adding a sink station means people can actually wash their hands and faces, not just rinse under a hose.
Portable sink and water tank combos also show up on film set restroom rental jobs and farm and agricultural restrooms packages, where crews need a wash-up point close to hand-labor areas. Field sanitation rules under OSHA 1928.110 call for potable water, toilets and handwashing for hand-labor employees, with one facility per 20 employees and located within a quarter mile walk. A portable sink station placed correctly satisfies that quarter-mile requirement without trucking workers back to a central point every break.
How much water do portable sink water tanks hold?
Most units run a fresh tank in the same general range as a standard portable toilet's holding tank, which sits at 60 to 70 gallons on a standard unit. That is enough for a full day of moderate use on a job site or a weekend event before a refill or service visit. Larger portable sink stations built for events or catering crews carry bigger tanks and pair with a gray water tank to hold the wastewater until it is pumped out.
Service intervals matter here too. ANSI/PSAI Z4.3, the industry standard for portable sanitation, sets a baseline of one service visit per week for up to 10 users over a 40 hour week, and we follow that same rhythm for sink stations so tanks do not run dry or overflow mid-rental. If you are staging near Firestone, about 9.5 miles east of Longmont, or out toward Lafayette, 12.5 miles south, we build the refill schedule around drive time so nothing runs short.
Where should a portable sink station go on site?
Put it next to the toilets, not across the lot. People wash up right after using the restroom or right before eating, and a sink station 100 feet away just does not get used. If you are running an ADA accessible porta potty on site, keep the sink within reach of that unit too. ADA Standards section 302.1 requires floor and ground surfaces be stable, firm and slip resistant, so we set sink stations on a level pad, not loose gravel, and check the approach matches ADA Standards section 403.5.1, a minimum 36 inch clear route width.
Handwashing has its own separate standard once you are past construction and into general industry sanitation. 29 CFR 1910.141(d)(2) requires washing facilities be provided with soap and with towels or a hand drying device, and it specifically states hand sanitizer does not satisfy that requirement. That is one reason a sink station beats a hand sanitizer stand alone on most job sites and events in Longmont. For construction placement generally, review the porta potty placement guide before delivery day. Confirm any right-of-way placement with the City of Longmont before setup, since permit rules vary by location and are not something to guess at.
Pair a sink with a portable restroom rental order for weddings, or scale up with an event restroom rental package for larger festivals and races. For ongoing construction work, see construction site services for the full list of what we stage together.
How long can I rent a portable sink station?
Day, week or month, whatever the job needs. Short weekend events usually book a single unit for the run of the event, while ongoing construction jobs in Longmont often keep one on site for the length of the project and swap it out during scheduled service visits.
Do portable sink stations need a water hookup?
No. They carry their own fresh water tank and pump, plus a gray water tank underneath for wastewater. That is the entire point of a self-contained unit: no hose bib, no drain line, no building nearby required.
Can I get hot water in a portable sink?
Yes, some units include a small heater built into the tank system. Cold-water units cost less and work fine for basic handwashing; hot water models suit food service, medical settings or cold-weather job sites where crews need warm water to actually get clean.
How often does the tank need refilling or servicing?
Depends on crew size and usage. We follow the same weekly service rhythm set by ANSI/PSAI Z4.3 for portable sanitation, adjusting for heavier use, and check tank levels during every scheduled stop.
Can a portable sink replace a handwashing station requirement?
Sometimes, but check the specific rule that applies. Construction paint, coating, herbicide or insecticide work falls under OSHA 1926.51(f)(1), general construction sanitation falls under OSHA 1926.51(c), general industry washing facilities fall under 29 CFR 1910.141(d)(2), and agricultural hand-labor falls under OSHA 1928.110. We help match the unit to the actual rule.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.