How many fixture units is a sink?
Drainage and venting fixture unit values
| Individual fixtures | Minimum size trap and trap arm b | Number of units |
|---|---|---|
| Kitchen sink, domestic, with or without food waste grinder and/or dishwasher | 1-1/2 inch a | 2.0 |
| Laundry sink, one or two compartments | 1-1/2 inch a | 2.0 |
| Lavatory (wash basin) | 1-1/4 inch | 1.0 |
| Shower stall | 2 inch | 2.0 |
How are water supply fixture units ( WSFU ) calculated?
Water Supply Fixture Units – WSFU. WSFU is used to calculate water supply service systems. Sponsored Links. The WSFU (Water Supply Fixture Units) is defined by the Uniform Plumbing Code (UPC) and can be used to determine water supply to fixtures and their service systems: 1 WSFU = 1 GPM = 3.79 liter/min. 1 in = 25.4 mm.
What does table a water service line sizing do?
TABLE A – Water Service Line-Sizing Worksheet – is attached and allows you to calculate the number of existing and proposed plumbing fixtures within your home as well as any possible future plumbing fixtures. For each fixture, there is a corresponding Water Supply Fixture Unit (WSFU).
How to calculate minimum water service line size in Illinois?
The total will then be compared to TABLE N or TABLE O. TABLE N or TABLE O – which is also attached is from the Illinois Plumbing Code and identifies the minimum water service line or “pipe size” (third column) based on the total number of WSFU’s calculated from TABLE A.
How to calculate the demand for water fixtures?
Estimate the supply demand by totaling the fixture units from the Water Customer Demand Data Table – Fixture Unit Count and then by reading the corresponding ordinate from chart below. Read chart vertically until you intersect the correct curve, then read the chart horinzontally until you read your water flow demand in G.P.M.
Water Supply Fixture Units – WSFU. WSFU is used to calculate water supply service systems. Sponsored Links. The WSFU (Water Supply Fixture Units) is defined by the Uniform Plumbing Code (UPC) and can be used to determine water supply to fixtures and their service systems: 1 WSFU = 1 GPM = 3.79 liter/min. 1 in = 25.4 mm.
TABLE A – Water Service Line-Sizing Worksheet – is attached and allows you to calculate the number of existing and proposed plumbing fixtures within your home as well as any possible future plumbing fixtures. For each fixture, there is a corresponding Water Supply Fixture Unit (WSFU).
The total will then be compared to TABLE N or TABLE O. TABLE N or TABLE O – which is also attached is from the Illinois Plumbing Code and identifies the minimum water service line or “pipe size” (third column) based on the total number of WSFU’s calculated from TABLE A.
Estimate the supply demand by totaling the fixture units from the Water Customer Demand Data Table – Fixture Unit Count and then by reading the corresponding ordinate from chart below. Read chart vertically until you intersect the correct curve, then read the chart horinzontally until you read your water flow demand in G.P.M.
