What is a portable sink and how does it work?
A portable sink is a self-contained unit with a fresh water tank, a wastewater tank underneath, and a pump that moves water to the faucet. Most run on a foot pump or a small battery pump, no hookup needed. Some models heat water, which matters if crews or guests are washing up in cold weather. Royal Oak Porta Pros stocks units sized for handwashing station rental needs on construction sites and for smaller events that just need a rinse point near food service or a first-aid tent.
Every unit ships with soap and towels or a hand-drying device, which is the standard set by 29 CFR 1910.141(d)(2) for washing facilities. Hand sanitizer alone does not satisfy that rule, so if your site needs compliant handwashing rather than just sanitizer, ask about a portable sink rental instead of a hand sanitizer station rental. For a broader look at what inspectors expect, see our page on handwashing station requirements.
Can a portable sink be used for washing hair?
Yes. Hot water portable sink stations work fine for hair washing at campsites, festivals, film sets, and disaster relief camps where showers aren't practical. A portable sink to wash hair needs a deeper basin and a steady hot water supply, so ask for the heated tank option rather than a standard cold-water unit. Crews running multi-day events like a festival restroom rental setup or a camping porta potty package often pair a hair-washing sink station with a shower trailer rental for a fuller cleanup solution. The water tank size matters here too: a 60 to 70 gallon standard tank empties faster with hair washing than with quick handwashing, so we plan tank swaps or refills based on expected user count. This is the same logic behind ANSI/PSAI Z4.3's baseline of one service visit per week for up to 10 users over a 40-hour week, though hair washing draws down water faster than that baseline assumes.
Where can a portable sink station be placed on site?
Placement depends on ground surface and access, the same rules that apply to any portable toilet rental unit. ADA Standards section 302.1 requires floor and ground surfaces to be stable, firm, and slip resistant, which rules out soft mud or loose gravel under an accessible sink station. If the site needs an ADA-compliant unit, ADA Standards section 308.2.1 sets a forward reach limit of 48 inches maximum and 15 inches minimum, and operable parts like the pump handle must meet section 309.4's rule of no tight grasping and 5 pounds maximum force. Our ADA accessible porta potty units follow the same placement logic. Royal Oak sites near the right of way should confirm placement with the city before locking in a spot; we haven't verified specific right-of-way rules here, so check with Royal Oak directly. For general layout advice across unit types, see our porta potty placement guide.
Does a portable sink need a permit in Royal Oak?
We have not verified specific permit requirements for portable sink placement in Royal Oak, so confirm with the city before your event or job start date, particularly if the unit sits in a public right of way or on a street closure route. Construction sites already tracking dumpster permit requirements or porta potty permit requirements should ask about sink station placement in the same call, since many cities bundle sanitation equipment questions together. If you're staging a wedding or private event, our porta potty rental checklist covers the questions worth asking before delivery day.
Portable sink rental pricing
| unit | duration | typical price |
|---|---|---|
| standard | day | $150 |
| standard | week | $200 |
| standard | month | $200 |
| deluxe | day | $300 |
| deluxe | week | $250 |
Pricing above reflects standard and deluxe portable toilet and sink station units; a deluxe flushable unit with an integrated sink runs higher on a daily basis than a weekly rate because short rentals carry more delivery overhead per day. See our deluxe flushable porta potty page for unit specs, or check porta potty rental cost for a fuller cost breakdown across unit types. A delivery fee applies separately and typically runs in the $100 to $172 range depending on job duration; our porta potty rental per day page details how that fee stacks against daily unit cost.
Royal Oak job sites near Ferndale, about 3.9 miles south, or Madison Heights, 2.9 miles east, fall inside our standard delivery radius, so a sink station delivered alongside a standard porta potty rental unit doesn't add extra drive time. For sites further out toward Bloomfield, 9.6 miles northwest, ask about delivery fee adjustments when you request a quote.
How much water does a portable sink station hold?
Most standard units carry a 60 to 70 gallon fresh water tank, the same size used in our standard portable toilet line. That's enough for roughly a full day of moderate use before a refill is needed, though hair washing or high-traffic events draw the tank down faster.
Can I rent a portable sink without a toilet?
Yes, a sink station rents on its own for events, job sites, or camps that already have restroom coverage but need an added handwashing or rinse point. It pairs naturally with a portable restroom rental order if you're setting up from scratch.
Do portable sinks work in freezing weather?
Heated units handle cold weather better than standard cold-water tanks, since standing water can freeze overnight. For winter job sites in Royal Oak, ask about heated sink options at the same time you review our porta potty in winter guidance.
How many sink stations does a construction site need?
That depends on worker count under OSHA 1926.51(c), which sets toilet ratios starting at one facility per 20 workers. Sink stations typically follow the same headcount logic. Our OSHA portable toilet requirements page and how many porta potties do I need calculator both help size a full order.
Is hand sanitizer enough instead of a sink?
No. 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device for washing facilities; hand sanitizer doesn't meet that standard on its own, though it works as a supplement between sink visits on busy sites.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.