This think won’t be washing a ton of cars. Might be worth looking for a used unit. Used car wash equipment is generally pretty cheap.
If you are serious about this make sure to go beyond floor drains only. You will want to have some sort of catch basin as you will produce a lot of dirt overtime and won’t want your toilet backing up because of car wash dirt. I think you can get past water supply issues but will need to setup proper tanks and such to do so (and possibly added pumps for recirculating).
Assuming where you live permits/code isn’t an issue at all your biggest problem is going to be electrical. Assuming you can get 3 phase power (or a giant single phase service), the power supply is close already your still looking at $50k+ in electrical costs…
More then likely resolving the electrical issue will cost far far more.
If you are serious about this make sure to go beyond floor drains only. You will want to have some sort of catch basin as you will produce a lot of dirt overtime and won’t want your toilet backing up because of car wash dirt. I think you can get past water supply issues but will need to setup proper tanks and such to do so (and possibly added pumps for recirculating).
Assuming where you live permits/code isn’t an issue at all your biggest problem is going to be electrical. Assuming you can get 3 phase power (or a giant single phase service), the power supply is close already your still looking at $50k+ in electrical costs…
More then likely resolving the electrical issue will cost far far more.