The only negative is that there is some kind of inadequate employee who cleans the sinks, put a bucket, I drive up, I think maybe someone left and left, I thought I would clean up, oboregen comes running and shouts what can't you see I'm cleaning up here, (he wasn't there, only a bucket) and starts shouting something, I tell him how I should understand that There's maintenance or cleaning, he says by the bucket, there's a bunch of them, and everyone uses them.
Offer to give them signs or signs with the words Maintenance/ cleaning
Advantages - a large number of car wash boxes. Paved parking for wiping after washing. Good lighting, can be washed in the evening. There is a QR code for non-cash payment.
The disadvantage is the weak chemistry for washing cars.
I'll give you 5 stars anyway