Dry hydrants (and suction points – water sources where drafting is with suction hose and strainer only; no established dry hydrant is available) If it is the desire of a fire department to use this as a “stand alone” class, it will be offered as an all day class. It can be combined with on-site use of any dry hydrant(s) that the department may already have, or to visit a site(s) that are being considered. The class will cover the entire scope of the use of a dry hydrant for water supply. Initial portion of the class will cover the actual drafting principles that definitely affect the correct usage of dry hydrants.
Items that will be covered:
What is a good water source! This will also cover the items that
ISO will look at to determine whether they can “recognize” the source for use in a survey.
What is needed for landowner permission and what does the landowner need to know from the fire department.
Method of determining what the dry hydrant will flow PRIOR TO IT'S INSTALLATION! This applies only to dry hydrants which are to be installed in “static” (non-flowing water) sites. Discussion (and information in tabulation and the record sheets of tabulation) will also be held regarding the method of determining hydrant flow at flowing water sites.
These major points to be covered; installation methods for dry hydrants at flowing water sites will also be covered.
Initial survey
Examples of dry hydrant layouts
Design, Parts, Construction
Step-By-Step Procedure for Installing a Dry Hydrant
Formulas for Calculations used in Determination of Water Availability
Drawing of Dry Hydrants (lay out) at Site Locations and Certified Water Availability
Maintenance of Dry Hydrants
Additional Information of Use
The section on drafting includes:
concept of drafting and the equipment on the pumper apparatus to provide the capability to draft
Other drafting mechanisms used on auxiliary pumps
Use of varying types and sizes of portable pumps
The following will be covered:
What benefit(s) will the department obtain from this use?
Will the water obtained by for direct fire suppression or water shuttle use?
Are any/all of these to be used in an effort to reduce the
ISO rating?
What will be the effect to the local government and property owners?
What equipment and knowledge is already “in” the department!
What information is desired about methods of “moving water” from the any type drafting site?
Length and depth of the course can be adjusted based on the the nature of the operations and the terrain involved.
