It will cost you about $200 per meter. But before you run out and do that, there are a couple more steps you must take.The first is to figure out the cost of water/sewer per lot. If it’s $40 per month or less per lot, then don’t sub-meter, just raise the rent $30 per month and be done with it. Because all you’re trying to do is basically raise rent, and billing water is not straight profit, as you have to install meters, read the meters, bill the meters, collect the money, and fix the meters. It’s a whole lot easier to spend 50 cents per lot and 100% of the rent raise falls to the bottom line.If the water/sewer cost per lot is more like $70 and up, then you need to hire American Leak Detection and see how many main line leaks you have and fix them. Then see where your bill is at. If it has knocked you back down to $40 per lot, then repeat the step outlined above and just raise rent. But if there are no main line leaks, then you are suffering from tenant abuse.With tenant abuse, the only solution is to install meters. That will drop the bill normally by 30%, and allow you to kick out the few that are using $200/month+ in water (world record is around $400+ per month in water from a guy who was secretly filling up a commercial water truck every night).So adding meters is not the right step until you complete the methodology above.