Single Meter Plumbing

[Malik Edwards]

Good Evening all, 

I hope this question is allowed on this forum. I purchased a Duplex in Wilmington, DE. It is a rather big house but only has a single meter. I'm looking to get a submeter or a method of identifying how much water is being used by each unit. I guess my question is, do any of you know someone in the area who could do the submeter or if anyone has tips on calculating the usage?