How Do I Get My Contractors License | C-55 Water Conditioning Contractor

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C55 – Water Conditioning Contractor

A water conditioning contractor installs water conditioning equipment with the use of only such pipe and fittings as are necessary to connect the water conditioning equipment to the water supply system and to by-pass all those parts of the water supply system within the premises from which conditioned water is to be excluded.

The Water Conditioning (C-55) examination is divided into four major sections. These sections are:

1. Job Planning/Estimating (21%)

Problem identification
Corrective action
Equipment selection
Installation planning

2. Installation (46%)

Pumps and monitoring equipment
Piping
Valves
Equipment check, calibration, and sanitizing
Training and documentation

3. Service and Maintenance (20%)

Water softening problems and servicing
Reverse osmosis
Ozone
Contamination

4. Safety (13%)

Safety hazards
Tool safety and protective wear

*Percentages are approximate*

Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. Which of the following components should a contractor use to attach the drain line from a reverse osmosis unit to the drain system?

a. p-trap

b. Saddle valve

c. Angle stop

d. Air gap

2. When installing hard copper piping underground, what types of piping should a contractor use?

a. L and M

b. K and M

c. K and L

d. M and DWV

3. What is the function of a cation exchange unit?

a. Remove calcium and magnesium

b. Oxidize iron from the water

c. Reduce dissolved solids

d. Increase pH

*All questions are written and reviewed by licensed contractors who are actively working in the field*

Resources

Cal/OSHA Construction Safety Orders.

California Code of Regulations, Title 8,
Industrial Relations, Division 1, Chapter 4, Subchapter 4.
Barclays Law Publishers,
P.O. Box 95767,
Chicago, IL 60694.
(800) 888-3600
FAX: (415) 732-8875.

Building News, Inc.
1612 S. Clementine Street,
Anaheim, CA 92802
(800) 873-6397
FAX: (714) 535-8078.
INTERNET: ccr.oal.ca.gov/cgi-bin/om_isapi.dll or www.bni-books.com

Uniform Plumbing Code.

International Association of Plumbing and Mechanical Officials (IAPMO).
20001 Walnut Drive South
Walnut, CA 91789.
(909) 595-8449
Publication orders: (800) 85-IAPMO
FAX: (909) 594-3690.
INTERNET: www.iapmo.org

California Contractors License Law and Reference Book.

Department of General Services,
Procurement Publications,
P.O. Box 1015,
North Highlands, CA 95660.
(916) 928-4630
FAX: (916) 928-0304.
INTERNET: www.pd.dgs.ca.gov

Place mouse on Material Mgmt & Repair (do not click on it) and go to menus on the right and click on Publications Distribution Center. Then click on the price list and/or order form.

Basic Electricity for Installers.