How do I check a car wash’s water recycling system before buying?

Begin with a walk-through. Ask the owner to show you where used water goes, how it is settled and filtered, and where it returns to the wash. Look at tank condition, visible corrosion, leaks and the state of the pumps. A clean, well-labelled plant room suggests regular care. A cluttered one with patched fittings suggests the opposite.

Then ask for the paper trail: service invoices, filter and media changes, pump replacements and any notes on failures. Ask what the owner does when the system struggles, such as odour or cloudy water. Staff can tell you how often they dealt with complaints about spotting or smell.

Compare the system’s age and condition with what the owner says. Ask the technician to estimate remaining useful life and the likely cost of major replacements, then discuss with your accountant how that spending affects your cash flow in the first few years. If the system is near the end of its life, it is fair to raise that when you negotiate. Also ask whether any sludge or wastewater disposal arrangements are in place, and who holds them. Ask whether the owner has ever had to shut the wash because of a water problem, and for how long.

Key takeaways

• Inspect tanks, filters and pumps in person, not only in photos.
• Request service records and ask staff how often water quality caused complaints.
• Use an independent technician’s estimate of remaining life when you plan cash flow.