Livestock Watering
Order No. 590.304-4 January 2006
LIVESTOCK WATER SYSTEM DESIGN #4
Design Worksheet
Use this worksheet to do a systematic approach to livestock watering system design.
1. Water Quantity
a) Daily Water Requirements
Beef Cattle Bison Dairy cows Fallow Deer Horses Swine Sheep Chickens Turkeys (refer to Factsheet #590.301-1, Table 1) x x x x x x x x x see table 12 see table 2.5 12 4 2 see table see table USgpd USgpd USgpd USgpd USgpd USgpd USgpd USgpd USgpd = = = = = = = = = = __________ __________ __________ __________ __________ __________ __________ __________ __________ USgpd USgpd USgpd USgpd USgpd USgpd USgpd USgpd USgpd USgpd
__________ __________ __________ __________ __________ __________ __________ __________ __________
Total Daily Requirement
b) Peak Flow Rates
(refer to Factsheet #590.304-1)
From Daily Requirements Minimum Peak Flow Rate = _______USgpd = minimum peak flow rate = ________USgpm 240 OR, From Fixture Flow Rates Automatic waterers Poultry fountain Dairy hose Sanitation hose Outdoor hydrant Household Fire hydrant __________ __________ __________ __________ __________ __________ __________ x x x x x x x 2 1 5 10 5 10 10 USgpm USgpm USgpm USgpm USgpm USgpm USgpm = = = = = = = = __________ __________ __________ __________ __________ __________ __________ USgpm USgpm USgpm USgpm USgpm USgpm USgpm USgpm
Total Peak Flow Rates from Fixtures
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2. Water Supply
c) Wells
(refer to Factsheet #590.303-2; for drilled wells, also refer to well log for info) ________________ ________________ ________________ ________________ ft in USgpm
Type of well (dug, driven, drilled, etc) Depth of well Diameter of well Capacity of well (tested flow rate)
d) Springs
(for measuring flow, refer to Factsheet #502.100-5) ________________ ________________ USgpm
Type of spring (concentrated, seepage, etc.) Flow capacity (free flowing)
e) Flowing Surface Water
(for measuring flow, refer to Factsheet #502.100-5) ________________ ________________ ________________ USgpm USgpm
Type of supply (ditch, creek, river, etc.) Maximum capacity at low flows Licenced capacity
f) Intermittent Storages
Daily Water Requirement: from 1(a) Minimum Flow Rate = gpd 60 min/hr x 24 hrs/day Actual Supply Flow Rate from source Peak Flow Rate required: from 1(b) = ________________ ________________ USgpd USgpm
________________ ________________
USgpm USgpm
If the water source flow is less than the peak flow requirements, then the minimum intermittent storage required is twice the daily requirement. Intermittent Storage = 2 x ______________ USgpd = ______________ USgallons ( minimum) Note: Storage will assist the daily water supply, but on a daily basis, the Supply Flow Rate from the source must be greater than the Minimum Peak Flow Rate required. If not, additional source(s) are required.
g) Dugout Storages
Capacity = Capacity = = Dugout size Capacity Length Width Depth Side Slopes Daily Water Requirement x Number of Days for period of use x 1.1 (for losses) ________________ USgpd x ___________ days of use x 1.1 ________________ USgallons required for period of use (refer to Factsheet #590.303-3) ______________________ USgallons ______________________ feet ______________________ feet ______________________ feet _________ : __________ ratio of run : rise
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h) Water Harvesters
Water Requirement
(refer to Factsheet #590.303-4) = = = Daily Water Requirement x Number of Days for period of use _____________USgpd x _____________ days of use _____________USgallons required for period of use = _____________ inch annually USgal Required Inches Annual Precipitation
Average Annual Precipitation at the site Catchment area = = 1.8 x
_____________square feet Catchment Area
i) Tank Storage Size
Storage Requirement
(refer to Factsheet #590.304-7) _______________ USgallons Rectangle Tank Tank length ____________ ft Tank width ____________ ft Tank depth ____________ ft
Round Tank Tank diameter ___________ ft Tank depth ___________ ft
3. Distribution System
For simplicity, set the water source at 0 feet elevation. Elevations below the source are considered negative and pressure is gained. Elevations above the source are positive and pressure is lost (to be supplied by pumping).
j) Elevations
Water source Storage elevation Waterer A elevation Waterer B elevation Waterer C elevation Max elevation difference 0 ft __________ ft __________ ft __________ ft __________ ft __________ ft x x x x x x 0.433 0.433 0.433 0.433 0.433 0.433 = = = = = = 0 _________ _________ _________ _________ __________ psi psi psi psi psi psi
k) Friction Losses
Pipe section ________ ________ ________ ________ ________ Comments ___________ ___________ ___________ ___________ ___________ Max flow (USgpm) ________ ________ ________ ________ ________ Length (ft) ______ ______ ______ ______ ______ Pipe size/type ________ ________ ________ ________ ________ Friction loss (psi/100 ft) ___________ ___________ ___________ ___________ ___________ Friction loss (psi) ___________ ___________ ___________ ___________ ___________
Where is friction loss the worst case? Total friction loss in the worst case is
___________________ ___________________ psi
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l) Total Pressure Head Required
Pressure due to elevation differences Pressure required at highest outlet Friction loss (worst case) Miscellaneous losses (allow minimum 3 psi) Total Pressure Head Required Check to ensure the pipe selected is sufficient for the total pressure head. = = = = = ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ psi psi psi psi psi pipe OK
4. Pump Specification
Total head required _____________ psi x 2.31 ft/psi Maximum peak flow required Minimum pump efficiency (from dealer) Pump model (from dealer) The horsepower required can be calculated as follows: H.P. = total head (ft) x maximum flow (USgpm) 3960 x pump efficiency = 3960 ft x USgpm x Select the nearest size motor = ___________________ ___________________ h.p. h.p = = = ___________________ ___________________ ___________________ ___________________ ft USgpm %
5. System Check
Check to ensure pressures and flows are sufficient – are there any problem areas?
6. Schematic Livestock Water System Layout
Include water source, elevations, distances and demand flows.
RESOURCE MANAGEMENT BRANCH Ministry of Agriculture and Lands 1767 Angus Campbell Road Abbotsford, BC V3G 2M3 Phone: (604) 556-3100
WRITTEN BY Lance Brown Engineering Technologist Kamloops Office
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