Hospital Water Softener Sizing Calculator

How do you size a hospital water softener? The following calculation can be used as a rough guide for hospital water softener sizing. For general water softener sizing, see the industrial water softener sizing calculator instead.

Hospital Industrial Water Softener Sizing Guide

Number of Rooms:
Peak Continuous Flow Rate GPM*:
Daily Laundry Use (GPD):
Daily Kitchen Water Use (GPD):
Daily Boiler Makeup if Applicable (GPD):
Hardness of Water (Grains Per Gallon):
Capacity per Cubic foot of Resin (Grains):


Total Gallons of Water Used Between Regenerations:
Cubic Feet of Water Softener Resin Needed Per Tank:
Inch Valves (estimate):

There are multiple variables in sizing water softeners that are beyond the scope of the water softener calculator below. Examples include water pressure, temperature, flow rate and cubic feet of resin per tank. Therefore, these guides should only be used for quick estimates.

For more detailed industrial water softener sizing, including configurations (single, twin parallel, twin alternating, triples, quad softeners), control types (timeclock, metered, PLC, progressive flow, additive flow) or pretreatment for reverse osmosis, deionization or other water treatment equipment, you are more than welcome to email or call Nancrede Engineering at 888-56-WATER (569-2837). We can make this process much easier for you!

Calculate hospital water softener operating and salt costs.

Nancrede Engineering also offers hospital water softener preventative maintenance, engineering consultation, equipment leasing, financing, and build, own, operate options. Let us know if you would like information on how these services can help you reduce downtime and capital risks.

Need hospital water softener parts? We carry parts for water softeners from Culligan, Marlo, Bruner, Lakeside and Siemans and more.

* Peak Continuous GPM is not instantaneous peak flow rate. It represents a continuous high flow rate at peak times of the day (e.g. for 30 minutes or more).

** Instantaneous peak flow rate is the maximum GPM for a short time (e.g. 1-5 minute period).