Fall RV Winterization & Tank Flush
Preparing your RV, camper, or fifth wheel for freezing Spokane winters? Leaving waste or water sitting in black and gray tanks over the winter leads to severe tank cracking, sensor corrosion, and frozen line damage.
Our mobile pump truck meets you at your private storage facility, driveway, or property. We vacuum both tanks completely dry, flush out residue, and prepare your system for safe winter storage — saving you expensive spring repair bills.
⭐ 5.0 Rating — 23 Google Reviews
★★★★★
"Called about getting our RV tanks pumped at the storage lot before winterizing. They showed up same day, pumped both tanks, and were done in 20 minutes. Way easier than dragging the rig to a dump station. Will use them every year."
— Spokane RV Owner
★★★★★
"We live full-time in our fifth wheel and the dump station near us closed. Spokane Septic comes right to our spot and pumps both tanks. Reliable, fast, and way more convenient than any dump station."
— Full-Time RVer, Spokane County
Mobile RV Tank Pumping in Spokane, WA
RV tank pumping doesn't have to mean a trip to the dump station. Spokane Septic Services brings our 3,000-gallon vacuum truck directly to your campground, storage lot, driveway, or job site. We pump black water tanks, gray water tanks, and standalone holding tanks — all types of RVs, motorhomes, travel trailers, fifth wheels, and camper vans.
Whether you're a full-time RVer who needs regular pump outs, a seasonal camper winterizing your rig, or a property owner with a holding tank that needs servicing, we handle it. Our truck connects to your RV's waste outlet, vacuums everything out, and hauls it to an approved disposal facility. You never touch waste. You never drive to a dump station. You never wait in line.
Who Needs Mobile RV Pumping in Spokane County?
Campers & RV Parks — If you're camping at Riverside State Park (Bowl & Pitcher, Nine Mile), Spokane County Fairgrounds RV Park, Willow Bay Resort, Dragoon Creek, or Liberty Lake Regional Park, breaking camp just to pump your tanks is a hassle. We bring the pump truck directly to your campsite or RV pad.
RVs in Storage & Driveway Freeze-Prep — Storing your rig at a private lot in Spokane, Spokane Valley, or Deer Park? Never leave sewage sitting in the tanks over the winter — freezing temperatures cause tank cracking, sensor corrosion, and severe odor buildup. We pump and flush your tanks on-site before winterizing.
Tiny Homes & Off-Grid Cabins on Holding Tanks — Not connected to a municipal sewer or traditional septic tank system? We pump standalone holding tanks for tiny home communities, seasonal cabins near Mount Spokane, and rural properties throughout Spokane and Stevens County.
Construction sites and events — We pump portable toilets, porta potties, and temporary waste facilities for construction crews and outdoor events. Our 3,000-gallon truck can handle multiple units in a single visit.
RV Tank Pumping FAQ
How much does RV tank pumping cost in Spokane?
Individual mobile RV tank pumping in Spokane starts at
$275 for standard black and gray tank pump outs. We provide upfront flat-rate pricing before starting — no hidden fees. We also offer
multi-RV group discounts for campgrounds, RV parks, storage lots, and neighboring rigs. Call
(509) 970-9118 for group or custom fleet pricing.
Do you come to my location to pump my RV tanks?
Yes — we are a fully mobile RV pumping service. Our 3,000-gallon vacuum truck comes directly to your campground, storage lot, driveway, or job site anywhere in Spokane County. No need to drive to a dump station. We bring the dump station to you.
What is the difference between black water and gray water tanks?
Black water is sewage from your RV's toilet — it contains human waste and toilet paper. Gray water comes from sinks, showers, and the dishwasher — it contains soap, food particles, and dirty water. Both tanks need to be pumped regularly. We pump both in a single visit.
How often should I pump my RV holding tanks?
For full-time RVers or seasonal campers using the RV daily, pump black tanks every 3 to 5 days and gray tanks every 5 to 7 days. For RVs in storage, pump all tanks before winterizing. Leaving waste in the tanks for weeks creates buildup, sensor fouling, and odors that are much harder to fix.
Can you pump RV tanks at a storage lot or driveway?
Absolutely. Many of our customers store their RVs at home or in private storage lots with no dump station access. Our 3,000-gallon vacuum truck pulls up, connects directly to your waste outlet, and pumps the tanks right there on-site. This is especially popular for Spokane-area RVers preparing their rigs for winter storage.
Do you pump portable toilets and porta potties?
Yes. We provide portable toilet and porta potty pumping for construction sites, outdoor events, and private properties throughout Spokane County. Our 3,000-gallon truck can service multiple units in one visit.
Can you clean and sanitize my RV tanks after pumping?
Yes. We offer RV tank cleaning and sanitizing to remove buildup, fix fouled tank sensors, and eliminate odors. This is especially recommended for full-time RVers at least once per season, or any time your tank sensor readings are inaccurate or you notice persistent smells.
What types of RVs do you service?
We service all types: Class A motorhomes, Class B campervans, Class C motorhomes, fifth wheels, travel trailers, toy haulers, pop-up campers, truck campers, and converted vans. If it has a waste tank, we can pump it. We also pump holding tanks for
tiny homes and seasonal cabins not connected to a septic system.
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