The exterior process

Before water: the walk-around

Every job starts with a slow lap around the car, phone out, filming. Tag or film every existing defect: scratches, dings, curb rash, chipped trim, that foggy headlight. It takes four minutes, and it is the difference between "that scratch was already there" being an argument or being a fact. The timestamped video has settled the dispute every single time a customer raised it; a memory has never settled one. This habit is half of your insurance policy. The other half is the liability policy from Water, Drains, and the Law.

The walk-around also scopes the job and the site: where's the spigot, where does water go when it leaves the car (your wash-water rule from that lesson applies to every job), where's shade, and where can you stage bins so the homeowner's day isn't tripping over yours. Work in shade whenever possible. Direct sun bakes soap and water spots onto hot paint, and hot panels flash-dry product before you can buff it. If there's no shade, you work panel by panel, wet-to-dry in one pass, or you reschedule the exterior for morning.

Wheels first, always

Wheels and tires get cleaned before paint, because wheels are the dirtiest surface on the car and their splatter must never land on clean paint. One bucket, dedicated wheel brushes and mitts that never touch anything else, a wheel cleaner matched to the wheel type, and a rinse that pushes water away from the car, not under it.

Brake dust is the enemy and dwell time is the weapon: spray, let the cleaner work, agitate with the brush, rinse fully. While each wheel soaks, you have ninety seconds to knock out the adjacent fender well. Wheels-first isn't just hygiene; it front-loads the fiddly work while you're fresh.

The two paths for paint

The two-bucket wash when you have a hose: one bucket with soapy water, one with plain rinse water, a grit guard in each. Mitt into soap, one panel in straight lines (never circles), then mitt into the rinse bucket and scrub it against the grid before it returns to the soap. The rinse bucket exists so the dirt you just removed from the car never re-enters the soap that touches paint. Top-down, always: roof, glass, hood and trunk, doors, then the lowest panels last, because the bottom of the car holds the grit. Foam the car first if you have a foam cannon; the foam's job is to soften and lift dirt before your mitt ever touches it.

The rinseless wash when water or drainage is constrained, which from this course's legal stance is often: a few gallons of water with rinseless concentrate, multiple clean microfiber towels folded in quarters, and the discipline of one pass per fold-edge. Spray the panel with your rinseless solution, wipe in one direction with a damp towel edge, dry immediately with a second dry towel, then refold to a fresh face for the next section. The moment a towel face drags twice, it's done; that's how you get a full wash out of three to four gallons without swirling the paint. Rinseless rewards towel discipline and punishes thrift with laundry.

Drying and the final lap

Dry with a large dampened drying towel, working top-down, patting or dragging in straight lines rather than scrubbing. Compressed air or a blower, if you own one, clears mirrors, badges, and panel gaps where water hides and drips out during the customer's walkthrough. Miss a mirror drip and you'll watch it streak down the door while they inspect. Ask how the cars in your care are dried after the wash: door jambs, fuel door, the sills under the doors. Details in jambs are what separate a detail from a wash in the customer's mind.

Then the final lap, with the customer if possible: the same walk as the opening lap, narrated, ending at the best angle, which is where the review and referral asks from Reviews and Recurring Revenue happen naturally.

The exterior is half the craft. The interior is where the money and the misery both live.