What is a portable sink rental?
It is a self-contained sink with its own fresh water tank, a pump (foot, hand, or electric), and a wastewater tank underneath to catch what goes down the drain. No hookup to a building needed. Some units heat water, which matters if you are washing hands after handling food or washing out hair after a long day on set or on the trail. San Marcos Porta Pros builds these around the same water tank logic used in portable sink water tanks for handwashing station rental: fresh water in, gray water out, refill and empty on a schedule. A basic single-basin unit fits next to a standard porta potty rental or a full portable restroom rental layout. Bigger jobs pair a sink station with a restroom trailer rental, since trailers often lack exterior handwashing and code wants a real basin with soap and drying, not just sanitizer, under 29 CFR 1910.141(d)(2). If you are running a construction site services job in San Marcos, the sink is usually the piece people forget until the walkthrough.
Can I use a portable sink to wash hair?
Yes, and it is one of the more common requests we get for a portable sink for hair washing on film sets and long-duration events. You want a unit with a hot water portable sink option, a wider basin, and a sprayer instead of a fixed spout. A 20 to 30 gallon fresh tank handles a handful of hair washes before it needs a refill; larger portable sink stations with 40+ gallon tanks handle more volume for film set restroom rental jobs or multi-day festival setups near San Marcos. Pair it with a shower trailer rental if the job needs full rinse capability, not just a basin. For camping portable sink use, most people are fine with a smaller gravity-fed unit and a jug refill, no pump needed.
How much does a portable sink rental cost in San Marcos?
Pricing depends on tank size, hot water, and how many basins you need. Here is what the range looks like:
| Unit type | Day | Week | Month |
|---|---|---|---|
| Handwash station, basic | $30 | $60 | $150 |
| Handwash station, deluxe/hot water | $85 | $250 | n/a |
| Delivery fee | $100 | $100 | $172 |
These bands come from measured pricing across the region, and a longer rental always costs more in total than a single day, even though the daily rate drops. If you are comparing against a full toilet setup, check porta potty rental cost or monthly porta potty rental for the sanitation side, since sinks and toilets are usually quoted together but billed as separate line items. A request a quote call is the fastest way to get an exact number for your San Marcos address.
Do I need a portable sink for my job site or event?
If you have workers on site, OSHA 1926.51(a)(1) requires an adequate supply of potable water at every place of employment, and 1926.51(f)(1) specifically requires washing facilities where employees apply paints, coatings, herbicides or insecticides. That is a common trigger on residential remodel crews doing a home renovation porta potty job, since paint and stain count. For general toilet counts on a construction crew, OSHA 1926.51(c)(1) sets the ratio: one toilet for 20 workers or fewer, scaling up from there, and see OSHA portable toilet requirements for the full breakdown. Farm crews fall under a different rule: OSHA 1928.110 calls for potable water, toilets, and handwashing within a quarter mile walk of hand-labor employees, which is exactly the setup we build for farm and agricultural restrooms work around San Marcos. Food vendors at a county fair restrooms or festival restroom rental job almost always need a dedicated handwash sink separate from guest restrooms, since health inspectors check for that specifically.
Frequently asked questions
Do portable sinks need a water hookup?
No. Every unit runs on its own fresh water tank, so it sets up anywhere a temporary fence rental or light tower rental would go, no spigot required. We fill it before delivery and can schedule refills mid-rental for longer jobs.
How often does the water tank need refilling?
Depends on use. A crew of 10 washing hands a few times a day can run a 20 to 30 gallon tank for most of a week before a refill; heavy use like hair washing or food service empties it faster, sometimes daily.
Can I rent just a sink without a porta potty?
Yes. Plenty of customers add a sink station to an existing setup, or rent one standalone for a garage sale, food truck event, or small crew. It does not have to bundle with a portable toilet rental order.
Does a portable sink need soap and towels?
Yes, under 29 CFR 1910.141(d)(2), washing facilities need soap and towels or a hand-drying device. Hand sanitizer alone does not satisfy that rule, so we stock units with a soap dispenser and paper towel holder built in.
How far will San Marcos Porta Pros deliver a portable sink?
We deliver throughout San Marcos and to nearby communities, including Lake San Marcos 3.2 miles west and Elfin Forest 6.8 miles south. Check service areas for the full delivery map or contact us directly with your address.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.