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What is a porta potty with sink?
  • Published May 15, 2025

What Is a Porta Potty With a Sink?

Do porta potties have sinks? Standard units usually don’t, but many renters don’t realize there’s an easy upgrade. A porta potty with a sink puts a handwashing station right inside the restroom, so guests and workers can clean up without walking to a separate station.

At Prime Dumpster, we facilitate porta potty rentals with sinks for weddings, job sites, food events and more across the country. This guide explains how these units work, what’s inside, how they compare to standard units and when they’re worth renting.

Fast Facts: Porta Potties With Sinks

While exact sizes will vary, general specifications for porta potties with sinks are the following:

FeatureTypical Specification
DimensionsAbout 47″ W × 47″ D × 91″ H
Holding TankAbout 65 gallons
Freshwater TankAbout 22 gallons for the sink
Uses Before ServicingAbout 150 to 200
Best ForWeddings, food service areas, family events, longer job sites

Exact specs vary by manufacturer and by what’s available in your area.

“A sink inside the unit is one of the simplest upgrades you can make,” says the Prime Dumpster Pro. “Guests don’t have to hunt for a separate handwashing station, and it keeps lines moving at busy events.”

A porta potty with a sink is a self-contained portable restroom that pairs a toilet with a built-in handwashing station.

a sink in a porta potty with running water

How Do Porta Potty Sinks Work?

Porta potty sinks run on a simple, self-contained system. A freshwater tank inside the unit supplies the faucet, so no plumbing or water hookup is needed.

Most units use a foot pump. Pressing the pedal pulls water from the freshwater tank and sends it through the faucet. Used water drains into a separate wastewater tank, often called a gray water tank, where it stays until the unit is serviced.

Some models use a hand pump or touchless soap dispensers instead. Either way, the sink keeps clean water and wastewater apart from start to finish.

Porta potty sinks use a foot or hand pump to draw water from a freshwater tank, and used water drains into a separate wastewater tank.

What’s Inside a Porta Potty With a Sink?

A portable toilet with a sink includes everything in a standard unit, plus a few comfort and hygiene features. Here’s what you’ll typically find:

  • A toilet seat and holding tank
  • A small sink with a foot or hand pump
  • A soap dispenser
  • A paper towel dispenser
  • A mirror on many models
  • A urinal on some models
  • Roof vents for airflow

Features vary by model. If a mirror or urinal matters for your event, ask about it when you book. The deluxe porta potty with sink is the most common option for renters who want a built-in sink.

porta potties with sinks increase hygiene

Porta Potty With Sink vs. Standard Porta Potty

Both units handle the basics, but a sink unit adds convenience and hygiene. Here’s how they compare:

FeatureStandard Porta PottyPorta Potty With Sink
HandwashingHand sanitizer, or a separate stationBuilt-in sink with soap and towels
Interior SpaceCompactSlightly roomier
Common UsesJob sites, casual gatherings, high-traffic eventsWeddings, food areas, family events, long-term sites
ServicingPumping and restockingPumping, restocking and freshwater refills
Typical Price Range199–349300–400

A standard unit is the budget-friendly choice for basic needs. A porta potty with a sink costs a little more, but it removes the need for a separate handwashing station in many setups.

A porta potty with a sink typically costs more than a standard unit but adds a built-in handwashing station and a bit more interior space.

When to Rent a Porta Potty With a Sink

A porta potty with a sink makes the most sense anywhere handwashing really matters. Weddings, upscale gatherings and family events are common examples, since guests appreciate the extra comfort.

Food service areas are another strong fit. Health codes based on the FDA Food Code put a heavy emphasis on handwashing for anyone handling food, and sink units keep soap and water close by.

“You don’t have to upgrade every unit,” says the Prime Dumpster Pro. “A lot of planners rent mostly standard units and add a few with sinks near food areas or at the ceremony site. That keeps the budget in check while still giving guests a place to wash up.”

Long-term job sites benefit too, especially when there’s no room for a standalone handwashing station.

Porta potties with sinks are best for weddings, food service areas, family events and job sites where handwashing is a priority.

Servicing a Porta Potty With a Sink

Sink units need a little more attention than standard units. During each visit, the service crew pumps the holding tank and wastewater tank, refills the freshwater tank, restocks soap and paper towels, and sanitizes the interior.

Job site units are typically serviced weekly, while busy events may need more frequent visits. For workplaces, OSHA’s sanitation standard includes requirements for handwashing facilities, which makes regular servicing especially important on longer rentals.

two standard porta potties at an outdoor festival

Porta Potty Sink FAQs

We asked the Prime Dumpster Pros to answer common questions about porta potties with sinks.

Do Porta Potties Have Sinks?

Some porta potties have sinks, but standard units usually don’t. Units with built-in sinks are available as an upgrade, and standalone handwashing stations can be added next to standard units.

Can You Drink the Water From a Porta Potty Sink?

No, you shouldn’t drink the water from a porta potty sink. It’s meant for handwashing only, so bring bottled water or set up a separate drinking station for guests and workers.

Are Porta Potty Sinks Sanitary?

Yes, porta potty sinks are sanitary when they’re serviced regularly. Fresh water is refilled, wastewater is pumped out and surfaces are cleaned during each service visit.

Do Porta Potties With Sinks Have Mirrors?

Many porta potties with sinks include a small mirror, but it depends on the model. Ask about mirrors when you book if they matter for your event.

How Much Does It Cost to Rent a Porta Potty With a Sink?

A porta potty with a sink typically costs $300 to $400 per rental period, though prices vary by location and rental length. For a full breakdown, see the porta potty rental cost guide.

Choosing a Porta Potty With a Sink

A porta potty with a sink adds a built-in handwashing station to a standard restroom, making it a smart choice for weddings, food areas, family events and longer job sites. It costs a little more than a standard unit but often removes the need for a separate station.

At Prime Dumpster, our friendly, experienced team helps you choose the right mix of units and coordinates delivery, servicing and pickup with local providers nationwide. You’ll get upfront, clear pricing and one point of contact from booking to pickup. Contact our team to rent a porta potty with a sink for your next project or event.

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