The number everyone asks about
A professional pressure washing rig uses roughly two to four gallons of water per minute while the trigger is pulled. A typical house wash takes a few hours of intermittent spraying, so the total usually lands in the low hundreds of gallons — roughly comparable to running several loads of laundry, or a couple of long showers. It sounds like a lot until you compare it to the alternative.
Less water than doing it yourself
Here is the counterintuitive part: a professional washer uses less water than a homeowner scrubbing with a garden hose. A garden hose flows about the same gallons per minute but cleans far slower — so you run it far longer for a worse result. Professional equipment cleans faster per gallon because the pressure and the cleaning solutions do more of the work. A rental washer from the store is the worst of both worlds: weaker than pro equipment, so you spray longer and use more water for a lesser result.
Whose water is it?
Yours. Using the customer's outdoor spigot is standard across the industry. The crew connects to your hose bib and the rig boosts the pressure from there. That means the water shows up on your water bill — expect a noticeable bump for that billing cycle, roughly the cost of a few extra loads of laundry, not a second mortgage. If your spigot is broken, seized, or buried behind bushes, mention it when booking so the crew can plan around it.
Reclaimed water in Florida
Many Orlando-area neighborhoods have reclaimed water (the purple pipes) for irrigation. Reclaimed water is fine for lawns but generally not what washing crews want to run through their equipment — and most hook up to the standard potable spigot instead. If your home is on a well, tell the company when booking: well water works, but the crew needs to know about pressure and flow so they bring the right setup. Either way, sort out the water source before wash day, not during it.
Runoff: where the water goes
This is the part responsible companies take seriously. In Orlando, storm drains flow directly to lakes — not to a treatment plant. That means soapy, dirty wash water should not be sent down the street drain. Professional crews manage this by directing rinse water toward grass and landscaping, where soil naturally filters it, and away from storm drains wherever the property layout allows. They also use only the cleaning solution the job needs — no more — and rinse thoroughly so little residue remains.
What pros do that amateurs skip
Beyond aiming runoff at lawn instead of drains, professionals pre-wet plants so they absorb less of anything in the rinse water, contain the work area on sloped driveways so water does not sheet across the sidewalk, and avoid washing during heavy rain when runoff cannot be controlled. These are small disciplines that separate a careful company from a careless one — and they are worth asking about. "How do you handle runoff?" is a legitimate question, and a pro has a ready answer.
Drought and watering restrictions
Central Florida occasionally faces watering restrictions, especially in dry springs. These rules typically target lawn irrigation, not pressure washing — but it is smart to check current local rules before booking during a dry spell. Professional washing is a cleaning service, not irrigation, and it is generally permitted. When in doubt, a quick check of your water utility's current restrictions takes two minutes.
The efficiency bottom line
A professional house wash or driveway cleaning uses a few hundred gallons to restore surfaces that would otherwise need repainting or replacement — projects with vastly larger environmental footprints. Washing is maintenance, and maintenance is efficient. The water is well spent when the job is done right: right method, right amount of solution, runoff kept out of the lakes.
Questions about water, runoff, or anything else? Request a free quote from Orlando Pressure Washing Pros — we are happy to explain exactly how we handle it.
Frequently asked questions
How many gallons does a house wash use?
Typically a few hundred gallons for a full house wash — the rig flows two to four gallons per minute but the trigger is not pulled constantly. For perspective, that is in the neighborhood of several loads of laundry. Your water bill will show a bump for that cycle, but a modest one.
Is pressure washing wasteful compared to a garden hose?
No — it is the opposite. A garden hose flows similar gallons per minute but cleans much slower, so you run it far longer for a worse result. Professional equipment does more cleaning per gallon thanks to pressure and proper cleaning solutions.
Where does the dirty water go?
Responsible crews direct rinse water toward grass and landscaping, where soil filters it, and away from storm drains — because Orlando's storm drains flow straight to lakes. Ask any company how they handle runoff before you book.
Can the crew use my reclaimed water spigot?
Generally they will use your standard potable water spigot instead. Reclaimed water is meant for irrigation, not for running through washing equipment. If you are on a well, tell the company when booking so they bring the right setup.
Do watering restrictions ban pressure washing?
Usually not — restrictions typically target lawn irrigation, not cleaning services. But rules change with drought conditions, so check your water utility's current restrictions before booking during a dry spell. It takes two minutes.