How Often Are Porta Potties Cleaned?
What happens on a service visit, how often units need one, and what to do when a site is busier than planned.
By Kingston, owner of Kingston Portable Toilets Rental. Reviewed October 13, 2026.

How often is a porta potty serviced?
A rented porta potty is usually serviced once a week. Weekly service is included in our 28-day rentals, and weekend event units go out clean and stocked and need none. Busy job sites, long events and summer heat call for extra visits.
What does a porta potty service include?
A porta potty service includes pumping the waste tank, adding fresh deodorizing chemical and water, scrubbing the seat, urinal, walls and floor, wiping the door and handles, restocking 2 rolls of toilet paper, refilling the sanitizer, and checking the lock and vent.
Pump
The tank is emptied into the service truck.
Recharge
Fresh blue chemical and water go in to control odor.
Scrub
Seat, urinal, walls, floor and handles are cleaned.
Restock
Toilet paper and sanitizer are refilled.
Check
Lock, vent and seat are checked; damaged units are swapped.
Where does porta potty waste go?
Porta potty waste is hauled to a permitted wastewater treatment facility that has agreed to accept it. Missouri treats it as hauled sewage under 19 CSR 20-3.015, and Illinois requires approved disposal under 77 Ill. Adm. Code 905.170, which bans spreading portable toilet waste on farmland.
Sources: Missouri 19 CSR 20-3 and 77 Ill. Adm. Code 905.170.
Quick answers
How do I know if I need an extra service?
If the tank is past half full mid-week, or paper runs out before service day, add a visit.
Can I clean the unit myself?
Wiping the seat is fine. Do not add bleach or other chemicals to the tank; they fight the deodorizer.
What if the unit smells?
Call us. Heat speeds odor, and an extra visit or a vent check usually fixes it.
Get an itemized quote
Calling (636) 200-9910 is the fastest way to a price and a delivery time. Prefer writing? Send the six details below and we reply with a full itemized price, usually within one business hour during Mon–Sat, 7 a.m.–7 p.m., so you can share it with whoever signs off.
- One price covering the unit, delivery, pickup and any servicing
- No fuel surcharge added after the quote
- Free changes or cancellation up to 24 hours before delivery