Drain King Services Sewers, Drains & More!

Oil/Water Separator Cleaning

At Drain King, we specialize in dependable commercial drain and sewer services for car wash owners who can’t afford costly downtime. From clogged lines and sand trap maintenance to urgent sewer emergencies, our experienced team delivers fast, honest, and effective solutions tailored to the unique needs of car wash facilities.

Call: (763) 786-3000

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Keeping Oil Out, Water Moving, and Businesses Flowing.

Oil and water separators play an important role in keeping commercial drainage systems working properly and helping businesses stay compliant with local wastewater requirements. Facilities such as car washes, restaurants, auto shops, parking garages, and industrial properties often collect wastewater that contains grease, oil, sludge, sediment, and other contaminants. Over time, these materials build up inside the separator and can reduce efficiency, create odors, slow drainage, or lead to costly backups.

Professional oil/water separator cleaning removes accumulated oil, grease, solids, and debris so wastewater can flow through the system as intended. Routine service helps prevent clogs, protects downstream plumbing, and reduces the risk of contaminants entering the sewer system. For businesses that rely on clean, dependable drainage every day, scheduled separator maintenance is a practical way to avoid disruptions, protect equipment, and keep operations running smoothly.

Restaurant Grease Do’s and Dont’s.

by Art Kallenbach | June 1, 2026 | Commercial Drain Services, Maintenance | 0 Comments

“Insanity is repeating the same thing over and over and expecting the results to be different.” That quote fits restaurant grease problems better than most owners want to admit. I recently had a restaurant owner upset about the cost of clearing a main line packed with...

Frozen Drain Lines? Here’s What to Do Before Calling for Emergency Service

by Jennifer Beam | May 23, 2026 | Commercial Drain Services | 0 Comments

If your sinks are draining slow or not at all and you suspect frozen drain lines, don’t panic. It’s a headache, for sure, but there’s a good chance you can tackle the issue before needing emergency help. Here’s what I recommend if you’ve got frozen drains and you want...

Slow Drains and Strange Smells? Signs Your Car Wash Sand Trap is Full

by Jennifer Beam | May 18, 2026 | Commercial Drain Services, Diagnostic Services, Maintenance | 0 Comments

If you’re running a car wash, you know that your business literally lives and dies by its ability to move water. You’ve got high-pressure sprayers, chemical mixers, and conveyors all humming along, but none of that matters if the water has nowhere to go. At the heart...

What is a sand trap?

A sand trap is a tank that separates waste water collected from area floor drains. When liquid enters the tank, heavy debris falls to the bottom. Since oil is lighter than water it floats to the top. The remaining liquid flows through the tank and relatively clean water enters the city’s sanitary sewer system. Servicing your […]

What Is an Industrial/Commercial Sand Trap?

In a perfect world, only water would go down a floor drain. In the real world, your drains are catching everything that rides in on tires and boots: road sand, grit, sludge, salt, sediment, and whatever mystery cocktail ends up on the shop floor. A commercial/industrial sand trap is a large underground tank that slows […]

How to flush storm drains?

High-pressure water jetting We can insert a high-pressure hose into the drain to blast through clogs . This process can remove grease, tree roots, debris, and other solid obstructions.

How often should stormwater drains be cleaned?

Storm drains typically require cleaning every five years , with municipalities often cleaning 20 of their systems annually. However, areas prone to heavy debris accumulation or near sensitive water bodies may need more frequent cleaning.

Are storm drains public property?

Storm drain systems can involve both public infrastructure and private property features . Public systems typically include street drains, curbs, and municipal piping. However, once stormwater enters private property, through catch basins, retention ponds, or culverts, the responsibility may shift.