Formerly known as Sanidumps.
RVingLife.com

Motorhome Dump Stations In Ontario, CA -- Find Sani-Dumps Online

34.0633° N, 117.6509° W

Quick Overview

Ontario's Motorhome service area situation is straightforward -- the city has several service point with some free options available. This inland Southern California city sits at the crossroads of major freight and motorhome routes, making it a practical stop for sanidump services.

Located in San Bernardino County about 35 miles east of downtown Los Angeles, Ontario serves as a gateway between the Inland Empire and desert destinations like Joshua Tree and the Colorado River. The area sees heavy motorhome traffic from snowbirds heading to Arizona and boondockers returning from desert camping.

The service point landscape here centers around commercial motorhome supply businesses rather than traditional campgrounds or gas stations. Arrow Trailer Supplies provides the main sanitary service point option for RVers passing through the area. This reflects Ontario's role as more of a transit hub than a destination -- most RVers are either stocking up on supplies or handling maintenance before hitting the road to recreation areas.

Access couldn't be easier with I-10 and I-15 intersecting right here, plus Highway 60 running east-west through the city. Ontario International Airport adds to the traffic mix, but motorhome routes stay clear of the airport approach paths. The relatively flat terrain and wide commercial streets make maneuvering big rigs manageable throughout most of the city.

Our station listings below include current pricing, hours, and specific location details to help you plan your stop efficiently.

Top Rated Dump Stations in Ontario

No rated stations yet. Be the first to leave a review!

Traveling to Ontario by RV

Ontario sits at one of California's busiest freeway intersections, with I-10 and I-15 meeting just south of the city center. Take Exit 58 from I-10 for Archibald Avenue, which provides excellent motorhome access to most dump stations without tight turns or low clearances. I-15 offers multiple exits including Jurupa Street and 4th Street that work well for larger rigs.

Watch for height restrictions under some railroad overpasses in the older parts of Ontario, particularly along Holt Boulevard east of Euclid Avenue where clearances drop to 13'6". The newer commercial areas along Haven Avenue and Archibald Avenue were built with modern truck traffic in mind and handle 40-footers easily.

Overnight parking gets tricky here since most Walmarts in the area restrict motorhome parking due to local ordinances. Your best bet for a rest stop is the truck parking at travel centers along I-10, though these fill up fast during peak travel seasons. Some RVers use the large parking lots at Ontario Mills mall during off-hours, but check posted signs first since enforcement varies.

Dump Station Costs in Ontario

Of the several dump stations in Ontario, some (a portion%) are free while a portion% charge fees. Paid stations here typically run $10-15, which is standard for the Southern California market where land costs drive up operating expenses.

The pricing reflects Ontario's position as a commercial hub rather than a tourist destination -- these aren't resort campsite prices, but they're not highway robbery either. Most stations accept cash and cards, though it's smart to carry both since card readers sometimes go down in the desert heat.

Consider timing your visit with other errands since you're paying anyway. Many RVers combine service point stops with propane fills, grocery runs at the nearby Costco, or parts shopping at the motorhome supply stores. This makes the dump fee feel more reasonable when it's part of a larger resupply mission rather than a standalone expense.

Free: 11 stations (46%)
Paid: 13 stations (54%)

Contact station for pricing details.

Prices may vary. Always confirm with the station before visiting.

What RVers Are Saying About Ontario

No reviews yet. Be the first to share your experience!

Best Time to Visit Ontario by RV

❄️

Winter

Dec - Feb

45-70°F

Crowds: High

Peak snowbird season brings heavy motorhome traffic as travelers head to Arizona desert destinations.

🌸

Spring

Mar - May

55-80°F

Crowds: Medium

Pleasant weather draws weekend warriors and spring breakers heading to Colorado River recreation areas.

☀️

Summer

Jun - Aug

70-95°F

Crowds: Low

Hot inland temperatures keep most RVers away except those passing through to mountain destinations.

🍂

Fall

Sep - Nov

60-85°F

Crowds: Medium

Comfortable temperatures bring returning snowbirds and hunters heading to desert camping spots.

Explore the Ontario Area

Hit the service point early morning or late afternoon to avoid the midday heat that makes black tank dumping even less pleasant in this desert climate. Arrow Trailer Supplies knows RVers well and usually has everything you need if you forgot your dump hose or need a new fitting.

Fill up on water at the same location since potable water spigots aren't common at standalone dump stations around here. For propane, Costco on Auto Center Drive offers competitive prices, though you'll need to navigate their busy parking lot carefully with a big rig.

If you need motorhome repairs or parts while you're in town, this area has several good shops along the Pomona Freeway corridor. The service point at Arrow Trailer gives you a chance to inspect your rig's underside fittings while you're there -- they've seen every type of motorhome problem and can point you toward solutions if something looks off.

National Parks Nearby

Frequently Asked Questions About Dump Stations in Ontario

Where can I dump my motorhome tanks in Ontario, California?

Ontario has {{stationCount}} Motorhome service area available for travelers. The main option is Arrow Trailer Supplies, which serves the commercial motorhome corridor along the I-10 and I-15 interchange area.

Are there free dump stations in Ontario?

Currently there are {{freeCount}} free dump stations in Ontario. The available stations charge fees typically ranging from $10-15, reflecting the commercial nature of this inland Southern California market.

How much does it cost to use a service point in Ontario?

Service point fees in Ontario typically range from $10-15, which is standard for the Southern California region. Most stations accept both cash and credit cards for payment convenience.

What should I bring to an Motorhome service area?

Bring your own sewer hose, rubber gloves, and fresh water for rinsing connections. Many Ontario stations don't provide hoses, so having your own 20-foot hose ensures you can reach the connection point regardless of your motorhome's setup.

Is Ontario a good place to stop for motorhome supplies and maintenance?

Yes, Ontario's position at major freeway intersections makes it an excellent supply stop. Arrow Trailer Supplies and other motorhome businesses in the area stock parts and can handle basic repairs while you're getting your tanks dumped.

Where can I dump my motorhome tanks in Ontario, California?

Ontario has {{stationCount}} Motorhome service area available for travelers. The main option is Arrow Trailer Supplies, which serves the commercial motorhome corridor along the I-10 and I-15 interchange area.

Are there free dump stations in Ontario?

Currently there are {{freeCount}} free dump stations in Ontario. The available stations charge fees typically ranging from $10-15, reflecting the commercial nature of this inland Southern California market.

How much does it cost to use a service point in Ontario?

Service point fees in Ontario typically range from $10-15, which is standard for the Southern California region. Most stations accept both cash and credit cards for payment convenience.

What should I bring to an Motorhome service area?

Bring your own sewer hose, rubber gloves, and fresh water for rinsing connections. Many Ontario stations don't provide hoses, so having your own 20-foot hose ensures you can reach the connection point regardless of your motorhome's setup.

Is Ontario a good place to stop for motorhome supplies and maintenance?

Yes, Ontario's position at major freeway intersections makes it an excellent supply stop. Arrow Trailer Supplies and other motorhome businesses in the area stock parts and can handle basic repairs while you're getting your tanks dumped.

Are there free dump stations in Ontario?

Yes — there are free RV waste disposal options available near Ontario.