How much does a holding tank rental cost?
Pricing depends on what is holding what. A standard unit with its own tank runs in the range shown on our porta potty rental cost page, and daily rates are broken down further on our porta potty rental per day page. Septic-style pump service for a larger holding tank falls into a separate cost bucket entirely, closer to what you would pay for septic pumping service than for a toilet rental. Delivery adds a separate line.
| item | day | week | month |
|---|---|---|---|
| standard unit w/ tank | 100-350 | 130-500 | 125-325 |
| delivery fee | 100-500 | 50-150 | 120-420 |
| service fee | 100-300 | 30-220 | 100-300 |
A weekend rental for a standard unit runs 125 to 400 dollars, useful for a short RV trip or a one-off gathering in Longmont. Longer jobs in Longmont should look at the monthly porta potty rental page, since the month rate undercuts stacking four weekly rentals back to back.
Do RV holding tanks need separate rental units?
Yes, if you are parked somewhere without a dump station. An RV holding tank rental near you typically means a portable waste tank on wheels, pumped out separately from the vehicle's own black and gray water tanks. This is different from a construction or event portable toilet rental, which carries a fixed built-in tank of 60 to 70 gallons and gets serviced on-site instead of hauled to a dump point. For a homeowner doing a renovation with no working bathroom, a home renovation porta potty with its own holding tank is usually simpler than managing a separate waste tank. For farm properties running hand-labor crews, OSHA 1928.110 sets field sanitation at one facility per 20 employees, reachable within a quarter mile, and a holding tank unit can meet that without plumbing into anything. See farm and agricultural restrooms for that setup.
Where do holding tanks fit on a construction or event site?
Placement matters more than tank size. OSHA 1926.51(c) sets the toilet ratio for construction crews at one facility per 20 workers up to 20 people, then one toilet and one urinal per 40 workers beyond that. A holding tank unit counts toward that ratio the same as any portable toilet, so our how many porta potties do I need guide walks through the math for a Longmont jobsite. For accessibility, ADA Standards section 213.2 requires at least one accessible unit in any cluster, detailed on our ADA accessible porta potty page. If the job involves painting, coating, or applying herbicides or insecticides, OSHA 1926.51(f)(1) requires washing facilities on top of toilets, which is where a handwashing station rental or portable sink rental comes in alongside the holding tank. Placement in the public right of way in Longmont needs confirming with the city before delivery; check our porta potty permit requirements page before you commit to a spot.
Delivery crews need roughly 60 feet of straight clearance behind the truck for a roll-off or larger tank swap, so tight alleys and narrow driveways in older Longmont neighborhoods sometimes call for a smaller unit instead. Grease-related holding tanks, like those behind a food truck or event kitchen, get pumped once fats, oils, grease and solids reach 25 percent of liquid depth, covered on our grease trap pumping page. Residential septic holding tanks follow a longer cycle, typically pumped every 3 to 5 years depending on tank size and household count, detailed on how often to pump a septic tank.
What is the difference between a holding tank and a septic tank?
A holding tank stores waste until it is hauled away. A septic tank treats waste on-site through a drain field. Rentals in Longmont are holding tanks, no treatment involved, which is why service frequency depends on usage rather than soil conditions. Our septic tank cleaning page covers the treatment-tank side.
How often does a rented holding tank get serviced?
ANSI/PSAI Z4.3 sets a baseline of one service visit per week for up to 10 users over a standard 40 hour week. Busier sites or events need more frequent pumps. Longmont Porta Pros schedules around actual headcount, not just the calendar.
Can I rent a holding tank for just a weekend?
Yes. Weekend rentals cover Friday drop-off through Monday pickup, priced separately from daily or weekly rates. It works well for a wedding, a race, or a short RV trip.
Do holding tanks smell if serviced properly?
Not if the schedule matches usage. Odor almost always means the tank sat too long between services. See do porta potties smell for what actually controls it.
Is a permit needed to place a holding tank in Longmont?
Placement on private property usually does not need one. Curb, sidewalk or right-of-way placement needs confirming with the city first. Check porta potty permit requirements before delivery day.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.