Table 15 (Continued)
Chemical-Specific Feeding Recommendations
Feeding Recommendations
Chemical-to-
Suitable
Common Name/
Best
Water Ratio for
Types
Accessory
Handling
Formula
Feeding
Continuous
of
Equipment
Materials for
Dissolving1
Solutions2
Use
Form
Feeders
Required
Gas: vaporized
1 lb to
Gas chlorinator
Vaporizers for
Anhy. liquid
CHLORINE: Cl2
from liquid
45-50 gal
high capacities
or gas:
(Chlorine gas, liquid
or more
Steel, copper,
chlorine)
Scales
black iron
Disinfection
Gas masks
Wet gas:
Slime control
Residual analyzer
Penton, Viton,
Taste and odor control
Hastelloy C,
Waste treatment
PVC-1 (good),
Activation of silica6
silver,
Tantalum
Chlorinated
H2O: Saran,
stoneware,
Carp. 20 ss,
Hastelloy C,
PVC-1, Viton,
Uscolite,
Penton
Dissolving tanks
For solutions
CHLORINE DIOXIDE: ClO2
Solution from
Chlorine water
Solution
must contain
or crocks
with 3% ClO2:
Disinfection
Diaphragm pump
Ceramic,
500 ppm or over
Gas mask
Mix discharge
Taste and odor control
glass,
of Cl2 and have
from chlorinizer
(especially phenol)
Hypalon,
a pH of 3.5 or
and NaClO2
PVC-1, Saran,
less
Waste treatment 0.5 to
solution or add
vinyl,
5 lb NaClO2 per million
acid to mixture
Water use
Penton,
gal H2O dosage
of NaClO2 and
depends on
Teflon
NaOCl. Use equal
method of
concentrations:
preparation
2% max.
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