\* \* \* \* \* \* \* \* \* \*

READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

\* \* \* \* \* \* \* \* \* \*

[DIVISION 11: EQUIPMENT]{.underline}

SECTION 11261 - CHLORINATION EQUIPMENT

USE: \[Furnishing\] \[and\] \[installing\] chlorination equipment for
metering sodium hypochlorite or calcium hypochlorite for disinfection of
potable water.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[\_\_\_\_\_\] provide for information
to be inserted, as appropriate, to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface**,
and *italics*, within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately.)

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED.** Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name of the Project (upper and lower
case)**. Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specification that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST
110, or call (303) 987-6868.

**DRAWING DATA REQUIRED:**

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 11/01

Metric: Not Applicable

Technical Update:

SECTION 11261

CHLORINATION EQUIPMENT

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: Furnishing and Installing chlorination equipment
for metering sodium hypochlorite or calcium hypochlorite for
disinfection of potable water.

1.2 SUBMITTALS

A. General: Submittals shall be according to \[Section 01009 - General
Information and Requirements.\] \[and\] \[Section 01330 ‑ Submittal
Procedures.\] \[and\] \[Section 01365 - Certificates of Conformance.\]

B. Manufacturer\'s Literature: Submit \[5\] copies of the
manufacturer\'s descriptive data for chlorination equipment items to be
used on this project.

C. Installation Instructions: Submit \[5\] copies of the manufacturer\'s
installation instructions for chlorination equipment items to be used on
this project.

D. Operating and Maintenance Instructions: Submit \[\_\_\] copies of the
manufacturer\'s operating and maintenance instructions for chlorination
equipment to be used on this project.

E. Shop Drawings: Submit \[5\] copies of shop drawings for chlorination
equipment and enclosure to be used on this project.

[PART 2: PRODUCTS]{.underline}

2.1 EQUIPMENT

A. General: Chlorinator shall be self contained, factory fabricated, and
ready to install. It shall be fully operational as a non-powered system,
or using water or solar power, which shall be supplied by the contractor
as part of the system. The chlorinator shall be manually adjustable to
provide concentrations of chlorine in the treated water of 0-10 ppm
under flows of 0-5 gpm, and shall automatically supply a constant
concentration under varying flow conditions. System shall be sized to
treat a minimum of 30,000 gal of water, at concentration of 5 ppm,
between refills of the solution container.

B. Tablet Chlorinator: Shall be a device that bypasses a portion of the
flow through a saturation tank filled with calcium hypochlorite tablets
and is metered back into the mainline.

1\. Tank: Polyethylene or other nonreactive material. Shall be
translucent or have some other means to determine the level of calcium
hypochlorite tablets. Shall be rated at a minimum pressure of 20 psi or
1.5 times the working pressure, whichever is greater. Easily accessible
for filling and cleaning.

2\. Bypass tubing: Nonreactive material rated at 1.5 times working
pressure.

C. Solution Chlorinator:

1\. Chlorine Metering Pump/Injector: Furnish a solution metering pump or
injector of sufficient capacity to provide specified concentrations in
treated water.

2\. Solution Tank: Provide a polyethylene solution tank with a
fiberglass cover, a recessed area for setting the metering pump, and a
capped opening for refilling the solution tank without removing the
cover.

D. Enclosure: Provide suitable enclosure for chlorination equipment.
Enclosure may be above or below ground. It must resist 30psi wind loads
or soil pressures as applicable. It must protect the chlorination system
from the elements, from contamination, and from freezing. All equipment
shall be easily accessible for maintenance and repairs. Contractor shall
submit detailed drawings of the enclosure to be used. Enclosure must be
approved by the Contracting Officer.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION

A. Requirements: Install chlorination equipment according to the
manufacturer\'s instructions. Provide necessary fittings to make the
system operational.

3.2 FIELD QUALITY CONTROL

A. Testing: The Contractor shall test the chlorination equipment to
assure that it is adjusted and operating properly.

3.3 ADJUSTING

A. Requirements: The Contractor shall adjust the metering pump and
switch, injector, or restricting valve, as recommended by the
manufacturer.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT

A. Units: The work described in this section will be measured and paid
for on a unit basis.

4.2 BASIS OF PAYMENT

A. Payment: Prices and payment will be full compensation for the work
described in this section. Payment will be made under:

[Pay Item]{.underline} [Pay Unit]{.underline}

11261(02) Chlorination Equipment . . . . . . . . . . . . . . Each

END OF SECTION