How much does a Marine Pump-Out Service cost to buy?

A typical Marine Pump-Out Service sells for 2x to 3.8x annual revenue. With average revenue of $320K, expect to pay $640K to $1.2M.

How much does it cost to start a Marine Pump-Out Service?

Startup costs range from $80K to $220K depending on location, equipment, and scale.

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Marine Pump-Out Service

Q: What are the profit margins for a Marine Pump-Out Service?

The average profit margin for a Marine Pump-Out Service is around 35%. At $320K revenue: fuel 9–12%, vessel maintenance and dockage 12–16%, operator labor 25–32%, insurance and USCG compliance 6–9%. Owner-operator nets 32–40% in a 6-month season; year-round Florida operations net 28–35% on higher revenue base.

Every boat with a head needs the holding tank pumped. Marinas hate doing it themselves. So they hire you.

Marine pump-out services empty boat holding tanks (sewage from onboard heads) at marinas, yacht clubs, and boatyards. The Clean Vessel Act prohibits discharging untreated sewage within 3 nautical miles of US shores, and marinas are required by most state coastal authorities to provide pump-out access. Many marinas — especially smaller ones with under 200 slips — outsource the service rather than buy and maintain their own pump-out equipment. A pump-out boat (typically 22–28 feet with a 250–400 gallon tank, vacuum pump, and macerator) services 25–60 boats per visit and bills marinas at $25–$45 per pump-out plus a flat trip fee, or operates on a marina-paid contract at $1,500–$5,000/month per location. Solo operators with one boat covering 4–8 marinas in a coastal county generate $150K–$350K. Multi-boat operations covering entire bays or regional cruising grounds (Chesapeake, Long Island Sound, Puget Sound, Florida coast, Lake Michigan) hit $500K–$900K. The Clean Vessel Act administered through state programs reimburses marinas 75% of pump-out service costs, making the demand effectively grant-funded and price-insensitive. The work is highly seasonal in northern markets (May–October) but year-round in Florida, Gulf Coast, and Southern California.

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Avg Revenue

$320K

Profit Margin

35%

Acquisition Multiple

2x - 3.8x

Startup Cost

$80K - $220K

Difficulty

3/5

How It Works

An operator runs scheduled rounds at contracted marinas — typically 1–3 visits per week per marina during boating season. The pump-out boat ties up to each customer vessel, the operator connects a hose to the deck pump-out fitting, and a vacuum pump empties the holding tank into the service boat's onboard tank. Once full, the service boat returns to a designated land-based pump-out station to discharge into municipal sewer. A typical day handles 30–50 boats. Marinas pay either per-pump-out ($25–$45 each, often passed through to slip holders) or as a flat monthly contract. Some operators add holding tank cleaning, anti-odor treatments, and macerator pump repair as upsells. Clean Vessel Act grants administered through state DEC or DNR offices reimburse marinas for pump-out service costs — meaning marinas have strong incentive to keep contracts in place.

Revenue Range

Low End

$120K

Typical

$320K

High End

$850K

Pros

+Clean Vessel Act grants effectively subsidize 75% of marina pump-out spending — demand is grant-funded and stable
+Multi-marina contracts create predictable seasonal revenue with low customer acquisition cost
+Few competitors per market — many coastal counties have only 1–2 pump-out service operators
+Capital asset (pump-out boat) holds value well and can be repurposed for resale or charter at end of service life

Cons

-Strong seasonality in northern markets compresses revenue into 5–6 months
-USCG vessel documentation, marine insurance, and Coast Guard pump-out vessel inspections add operational overhead
-Weather-dependent — rough water days halt operations and create scheduling pressure

Best For

Marina industry veterans, retired boat captains, or buyers in coastal markets who want a niche route business with grant-funded demand

Operating Costs

At $320K revenue: fuel 9–12%, vessel maintenance and dockage 12–16%, operator labor 25–32%, insurance and USCG compliance 6–9%. Owner-operator nets 32–40% in a 6-month season; year-round Florida operations net 28–35% on higher revenue base.