What a Stormwater Camera Inspection Can Reveal

Camera equipment lets us see exactly what's happening inside a stormwater line without digging anything up. That means spotting blockages from sediment or debris, catching root intrusion before it becomes a bigger problem, and identifying cracks or joint separations that could be letting water escape where it shouldn't.

A camera inspection also tells us what kind of cleaning or repair a line actually needs, instead of guessing. Some blockages just need a routine cleanout, while more serious damage might call for a targeted repair. Either way, having a clear picture underground means less trial and error and a faster path to a fix.

Preparing Your Property’s Drains for Minnesota Storm Season

The best time to inspect a stormwater system is before the heavy rain shows up, not after. A property that gets ahead of storm season with a scheduled inspection has a much better shot at staying dry when the rain actually comes, compared to finding out about a blockage in the middle of a downpour.

For businesses with parking lots, loading docks, or basement-level entrances, a clogged stormwater drain can mean flooding that affects customers, deliveries, or equipment. A quick inspection ahead of the wet season is a small investment that heads off a much bigger disruption.

How an Oil/Water Separator Actually Works

An oil/water separator relies on a simple principle: oil and water don't mix, and they don't weigh the same. Wastewater flows into the separator and slows down enough for gravity to do the sorting, so heavier solids and sediment settle to the bottom, while oil and grease, which are lighter than water, rise to the top and form a layer that gets held back.

The relatively clean water in the middle layer is what's allowed to continue on to the sewer system, while the oil layer and the settled solids stay behind in the tank until they're pumped out during a service visit.

It's a straightforward system, but it only works as long as there's room left in the tank for that separation to happen. Once the oil layer or the sediment at the bottom gets too thick, the separator can't keep up, which is why routine cleaning matters as much as the separator itself.

What Goes Into a Sand Trap Cleaning Visit

When we show up for a sand trap service call, the work is more involved than just skimming the surface. We pump out the standing wastewater first, then get into the tank itself to clear out the sand, grit, sediment, and oils that have settled and separated since the last visit.

Along the way, we check the condition of the tank and its components, since a sand trap that's been neglected for a long stretch can develop wear that a routine cleaning alone won't catch. That's part of why annual service matters even if things seem to be draining fine on the surface.

Once the trap is cleared out, wastewater can flow through the way it's supposed to, and the buildup that would otherwise turn into a slow drain or a bad smell gets hauled away and disposed of properly.

The Slow Warning Signs Before an Oil/Water Separator Fails

Most separator problems don't show up overnight. A facility that's been running fine for months can start showing small, easy-to-miss changes weeks before anything visibly goes wrong: a drain that takes a beat longer to clear, a faint oily smell near the collection area that wasn't there before, a light sheen showing up in a nearby floor drain after a busy shift.

Those early signs matter because a separator doesn't fail all at once. It's a gradual process. As sludge and oil accumulate, the tank has less room to do the separating it's designed to do, so it starts letting more contaminants pass through than it should, even while it still looks like it's working from the outside.

By the time a facility notices a real problem, like standing water that won't drain, a strong odor throughout the area, or a compliance inspector flagging an issue, the separator has usually been overdue for service for a while. Catching the early signs instead of waiting for the obvious ones is what keeps a facility out of that situation altogether.

For most commercial properties, that means building a habit of walking the drainage area periodically and paying attention to small changes, rather than waiting for a slowdown that's impossible to ignore.