What Is a Holding Tank and How Does It Work?
A holding tank is a sealed container that stores wastewater until it gets pumped out. No plumbing to a sewer line, no drain field. It just holds black water or gray water until a truck comes and takes it away. That makes it the right call for a construction trailer, a remote job site outside Southaven, an RV parked somewhere without sewer hookup, or a special event where running new plumbing makes no sense.
Southaven Porta Pros rents both waste holding tanks and potable water holding tanks, since OSHA 1926.51(a)(1) requires an adequate supply of potable water at any place of employment. Pair a tank with a portable restroom rental or a full restroom trailer rental and you have a self-contained setup that works anywhere in Southaven, whether the job is 5.6 miles from Horn Lake or out past Hernando. For crews already renting a standard porta potty rental, a separate holding tank covers gray water from a handwash station or a sink trailer without overloading the toilet's own tank.
RV owners searching for an rv holding tank rental near me usually need it for a stationary trailer, not a moving rig. If you are parked for a weekend event or a longer stay, we deliver a tank sized to match your black water and gray water output so you are not scrambling for a dump station. Ask about our holding tank rental options when you book a luxury restroom trailer or a shower trailer rental, since both generate more gray water than a standard unit.
How Much Does Holding Tank Rental Cost?
Cost depends on how long you need the tank and how often it gets serviced. Septic pumping service on the day-rate side runs 150 to 300 dollars, while a weekend visit sits between 50 and 150 dollars. A standard portable toilet, for comparison, runs 100 to 350 dollars a day depending on the market, which helps put holding tank pricing in perspective.
| service | duration | low | typical | high |
|---|---|---|---|---|
| septic pumping | day | 150 | 250 | 300 |
| septic pumping | weekend | 50 | 100 | 150 |
| service fee | week | 30 | 60 | 220 |
| service fee | month | 100 | 150 | 300 |
Ask about full septic tank pumping cost if your job also needs a residential tank serviced. A typical residential septic tank gets pumped every 3 to 5 years, driven by tank size and household size, which is a different schedule than a rental holding tank that gets emptied on a set weekly or monthly interval. Check our porta potty rental cost page if you are bundling toilets into the same quote, and see porta potty rental per day for short jobs.
Do I Need a Permit for a Holding Tank in Southaven?
Placement in the public right of way needs confirming with the city before delivery. We have not verified a specific Southaven ordinance for holding tank placement, so check with the city before setting one on a street or sidewalk. For anything on private property, like a construction lot or backyard event, permitting is rarely an issue, but see our porta potty permit requirements and dumpster permit requirements pages for related guidance, since the same right-of-way question comes up with roll-off placement too.
Grease trap and grease interceptor customers have their own timeline. A grease interceptor gets pumped once fats, oils, grease and solids reach 25 percent of the liquid depth, which is a different trigger than a scheduled holding tank pump-out. See grease trap pumping for that service.
How much does a septic holding tank pumping cost?
Pumping alone, without a rental tank, runs 150 to 300 dollars for a day-rate visit or 50 to 150 dollars for a weekend service call, based on our measured pricing data. Full tank rental adds a separate delivery and rental cost on top.
Can I rent a water holding tank for drinking water?
Yes. We stock potable water holding tanks separate from waste tanks, since OSHA 1926.51(a)(1) requires adequate potable water at work sites. Ask us to size one for your crew count when you request a quote.
How often does a holding tank need to be pumped?
It depends on tank size and usage, not a fixed calendar. High-use sites might need weekly service, similar to the ANSI/PSAI Z4.3 baseline of one visit per week for up to 10 users. We set your schedule at booking.
Do you deliver holding tanks outside Southaven?
Yes, we cover Horn Lake, Hernando and Olive Branch. Check service areas or our dedicated pages for Horn Lake and Hernando delivery.
What size holding tank do I need?
It depends on user count and event length. Our how many porta potties do I need guide covers similar sizing logic, and OSHA 1926.51(c) toilet ratios are a useful reference point for crew-based jobs.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.