I've worked on it and found that it will not be feasible for me to process the water before dumping it in bore.
Now, I'm looking for another solution and I need your advice in this regard.
As per my calculation, water required to wash a car is at most 200 liters. So, if I wash 50 cars per day, total water requirement will be 10,000 liters. After using recycling plant with the efficiency of 70%, there will be waste water of 30% which will be 3,000 liters.
The rough weight for 3,000 liters of water will be 3,000 Kg = 3.0 Ton
I'm thinking about buying a 150cc or 200cc loader and I'll install a tank on the loader. In the off peak time (early in the morning or late at night), one worker will fill the tank on the loader and make a ride and dump the water in the "Naala" which is about 1 Km from the site location.
If we dump 1,000 liters in every ride, total 3 rides will be required per day to dump all the waste water. For 100 car washes, 6 rides will be required.
Cost of loader is about 200,000 PKR and tank will cost about 25,000. I know this solution requires some extra money to be spent, but at the moment it seems doable for me. I can outsource this work to some third party, but my whole business will rely in emptying the reservior tanks. If the person doesn't come for any reason, my work will be stopped, so I want to keep it in house.
I need sincere advice from you guyz, what do you guyz think about this solution.