Spreadsheet: 28edd9bb-ba73-4940-8e20-af1b7e7cbb1e
Sheet: 3. Indoor Nonpotable Supply

NON-POTABLE WATER CALCULATOR
Step 3 of 7: Calculate Indoor Non-Potable Supply (Graywater, Blackwater, Foundation Drainage)
 | Project Name: |  |  |  |  | LEGEND:
 |  |  |  |  |  | [NAME]
 |  |  |  |  |  | Linked from User Input
 | Instructions: |  |  |  |  | Default Value
 | Annual indoor water supply is calculated based on supply from collection of graywater, blackwater collection and other sources including foundation drainage. User input is required in Section D at the end of this page. |  |  |  |  | Autogenerated Value
 | A. COMMERCIAL (No user input needed - auto-calculated from Step 2)
 |  | Graywater Supply   (gpd) | % Graywater Supply Available (1) | [NAME] for Reuse (gpd) | Blackwater Supply  (gpd) | % Blackwater Supply Available (1) | Blackwater Available for Reuse (gpd) |  | Key
 | Fixture Type (Daily Use) |  |  |  |  |  |  |  | [NAME]
 | Showerhead |  | 0.9 |  | N/A | N/A | N/A
 | [NAME] |  | 0.9 |  | N/A | N/A | N/A
 | Commercial Laundry |  | 0.9 |  | N/A | N/A | N/A
 | Urinals | N/A | N/A | N/A |  | 0.9
 | Toilet (Water Closet) | N/A | N/A | N/A |  | 0.9
 | [NAME] | N/A | N/A | N/A |  | 0.9
 | Low [NAME] | N/A | N/A | N/A |  | 0.9
 | TOTAL
 | Notes:
 | (1) [NAME] and blackwater supply availability are estimated assuming a 10% treatment loss.
 | B. MULTI-FAMILY RESIDENTIAL (No user input needed - auto-calculated from Step 2)
 |  | Graywater Supply   (gpd) | % Graywater Supply Available (1) | [NAME] for Reuse (gpd) | Blackwater Supply  (gpd) | % Blackwater Supply Available (1) | Blackwater Available for Reuse (gpd) |  | Key
 | Fixture Type (Daily Use) |  |  |  |  |  |  |  | [NAME]
 | Showerhead |  | 0.9 |  | N/A | N/A | N/A
 | Bathroom Faucet |  | 0.9 |  | N/A | N/A | N/A
 | Bath |  | 0.9 |  | N/A | N/A | N/A
 | Washing Machine |  | 0.9 |  | N/A | N/A | N/A
 | Toilet (Water Closet) | N/A | N/A | N/A |  | 0.9
 | [NAME] | N/A | N/A | N/A |  | 0.9
 | Dishwasher | N/A | N/A | N/A |  | 0.9
 | TOTAL
 | Notes:
 | (1) [NAME] and blackwater supply availability are estimated assuming a 10% treatment loss.
 | [NAME] (No user input needed - auto-calculated from Step 2)
 | Month | [NAME] (gpd) from Step 2. | [NAME] (gal/mth) from Step 2. | Treatment Recovery Rate (1) (%) | Estimated [NAME] (gpd) (2) | Estimated [NAME] (gal/mth)
 | January |  |  | 0.9
 | February |  |  | 0.9
 | March |  |  | 0.9
 | April |  |  | 0.9
 | May |  |  | 0.9
 | June |  |  | 0.9
 | July |  |  | 0.9
 | August |  |  | 0.9
 | September |  |  | 0.9
 | October |  |  | 0.9
 | November |  |  | 0.9
 | December |  |  | 0.9
 | Average |  | N/A | N/A |  | N/A
 | Total | N/A |  | N/A | N/A
 | Notes:
 | (1) Default treatment recovery rate: 90%
 | (2) Default assumes cooling tower discharge as blackwater supply.
 | [NAME]
 | Instructions:
 | Please specify other graywater/blackwater/foundation drainage supplies that are available onsite.
 | Other Reusable Supplies | Estimated Supply (gpd) | No. of days within a year supply is available | Estimated Supply (gpy) | Type (Select from dropdown menu)
 | Swimming Pool Water |  |  |  | Graywater | <--Enter information for swimming pool water here
 | Foundation Drainage (to be provided by a licensed engineer) | 1000 | 365 |  | Foundation Drainage | <--Enter information for foundation drainage here |  |  |  | Select One
 | Other <Please specify> |  |  |  | Select One | <--Enter information for other supplies here |  |  |  | Graywater
 | Other <Please specify> |  |  |  | Select One | <--Enter information for other supplies here |  |  |  | Blackwater
 | Other <Please specify> |  |  |  | Select One | <--Enter information for other supplies here
 | Note: Water from swimming pools, garden and greenhouse sinks, water softener backflush, and floor drains may not be suitable for irrigation.
 | >>> Please proceed on to Step 4: Calculate Outdoor Water Demand
 | Domestic Fixtures | [NAME] (gpd) | Available Blackwater (gpd) | Available Foundation Drainage (gpd) | [NAME] (gpy) | Available Blackwater (gpy) | Available Foundation Drainage (gpy)
 | Showerhead |  | 0 | 0
 | Bathroom/Lavatory Faucets |  | 0 | 0
 | Bath |  | 0 | 0
 | Washing Machine |  | 0 | 0
 | Toilets and Urinals | 0 |  | 0
 | [NAME] | 0 |  | 0
 | Low [NAME] | 0 |  | 0
 | Dishwasher | 0 |  | 0
 | Swimming Pool Water |  | 0 | 0
 | Foundation Drainage | 0 | 0
 |  |  |  | 0
 |  |  |  | 0
 |  |  |  | 0
 | Total