Lawson Portable Toilets Same-day delivery(314) 408-7740

Flushing porta potty with a sink: the upgrade guests notice.

A flushing porta potty has a foot-pump flush, a foot-pump hand sink, a mirror and a fresh-water tank we fill on delivery. No hose or outlet needed. The step up for weddings, showers, memorials and nicer backyard parties.

  • Foot-pump flush
  • Sink inside
  • No hookups
Inside a flushing porta potty with a foot-pump hand sink beside the toilet
Foot-pump sink inside a flushing unit
  • Delivery areaFlorissant and towns within about 80 miles. See areas.
  • ArrivalDelivered the day before your event; same day when a unit and truck are free.
  • Which unitPick this for weddings, showers, memorials and any event with food and no indoor bathroom.
  • CleaningArrives clean with fresh water, soap and paper; multi-day events can add a service visit.
  • Full costStarts at $290 per event, including delivery and pickup. Tax listed on the quote. Fewer of these units exist, so book 2 to 4 weeks ahead.
Call now(314) 408-7740

How does a flushing porta potty work without plumbing?

A flushing porta potty carries its own fresh-water tank. Pressing the foot pedal sends clean water into the bowl, and a second pedal pumps water to the hand sink. We fill the tank on delivery, so the unit needs no hose, no outlet and never touches your well or house water.

The manufacturer-style flush tank allows roughly 50 flushes before a refill, which covers a typical 4 to 5 hour event with about 50 guests. For bigger or multi-day events, book extra units or a mid-event service.

Foot-pump hand sink inside a flushing portable toilet
Foot-pump sink with soap dispenser inside the unit

Is a flushing unit cheaper than a porta potty plus a handwash station?

A flushing unit with a sink inside, from $290, usually costs less than a standard unit plus a separate handwashing station. It also takes up less space and keeps guests in one spot. Choose separate stations when you have many toilets, because one two-sided station can serve two or three units.

SetupStarting priceBest for
1 flushing unit with sink$290Up to ~50 guests, one restroom spot
1 standard unit + 1 handwash station$199 + $75Food events where you want separate sinks
3 standard units + 1 stationQuoted per orderLarge crowds on a budget

Questions people ask before they book

Quick answers to what renters ask right before they commit, covering delivery timing, placement, the full price and how pickup works. For anything else, a real person picks up at (314) 408-7740, and the porta potty rental FAQ covers the rest.

Does a flushing unit have its own water?

The unit has its own fresh-water tank that we fill on delivery. It never connects to your house or well.

Is there a light inside for evening events?

Many flushing units have a translucent roof and some have a small battery light. For evening weddings, place the unit near a porch light or string lights too.

Is the flushing unit available every weekend?

Flushing units are fewer than standard units and book out first in May, June and October. Reserve 2 to 4 weeks ahead.

Can I keep a flushing unit for a month?

Flushing units can go on a 28-day rental with weekly service and refills. It is a popular choice for families during a bathroom remodel.

Talk to a real person now.

We’ll match the unit to your job, quote every line and confirm the delivery window before you pay.