In my own personal experience, customers will complain about reclaim. Whether it's the foul odor coming from your entire wash or spots on their car, they will complain and you will get so tired of the complaining you will wish you took the advice given to you.
Customers will discover that you recycle your water, then they will talk. Soon the whole target market will know and they will use that fact against you. Any time the wash fails to meet their expectations, they will cry about you using 'dirty water'.
I had one 2 days ago; customer washed in the self-serve, drove away, then came back later with spots. It looked to me like he left wet and drove through some stone dust or similar. It was a dry dusty day. I had personally washed 5 or 6 cars in the SS bays that day and things were 100% perfect in the bays. My point is that the customer repeatedly asked me if I used recycled water!!! I told him NO about 4 different ways, but he was slow to believe me.
So good luck building a brand new wash on reclaim. People will say it works, but I would not do it. All it takes is one problem with the system ( which will happen while you're away on vacation), and your wash will have the reputation as the place that washes the car with dirty, smelly water.