Removing shower tubs and installing walk in showers

[Mark Malevskis]

Hello, 

I have a question if anyone's done this or if it makes financial sense. 

I have a six flat in Dupage County Addison, where water is ridiculously expensive. 

Its about $100 per unit for month. 

What do you guys think about removing tubs and installing walk in showers so not as much water would be used?

Also any other ways of saving water?

Thanks!