Disinfection of Pipelines - Disinfection of Pipelines and Storage Facilities Field Guide - page 22

B/O Pig Discharge

Foam
Pig

Scrubbing
Pig

Gate
Valve

Launching
Assembly

Direction of Flow

Courtesy Nicole Peschel
Figure 3-6 Pipeline pigging illustration

Table 3-4 Making small amounts of 1% or 5% chlorine solution with 65%
available chlorine calcium hypochlorite *

US Units SI Units

Water
Volume
( gal )

Water
Volume
( L )

1% Solution
( lb needed)

5% Solution
( lb needed)

1% Solution
( g needed)

5% Solution
( g needed)

0.25 or
1 qt

0.03125 or
about 3
teaspoons

0.15625 1 15.4 11, 77

1 0.125 or ¹⁄₈ lb 0.625 00 4 61.6 1, 308

2 0.25 or ¹⁄₄ lb 1.25 000 5 77 .0 1, 385

0.375 or
about

3 1.875 00 8 123.2 1, 616

¹⁄₃ lb

4 0.5 or ¹⁄₂ lb 2.5 0000 10 154 .0 1, 770

5 0.625 3.125 00 20 308 .0 1,540

10 1.25 6.25 000 40 616 .0 3,080

* The values in this table are rounded and approximated for field use.

Table
Tamer

For one gallon of 1% chlorine solution, lb or about 60 g

of calcium hypochlorite should be used. See shaded cells
above.

¹⁄₈