There is a formula for anything that you need to accomplish with regards to swimming pools, spas and hot tubs. Whether it’s a chemical adjustment or a piece of equipment that you need to replace and you want to be sure it’s the right size.
This article, as is stated in the title, is about the strength, types, physical properties of and pH effect of the different types of chlorine used in pools and spas. Also included are the same qualities of Bromine.
% of available chlorine:
Sodium Hypochlorite = 10-12%
Calcium Hypochlorite = 65-78%
Lithium Hypochlorite = 35%
Gas Chlorine = 100%
Trichlor = 90%
Dichlor = 56-63%
BCDMH Bromine = 27%
% of active strength:
Sod. Hypo. = 10-12%
Cal. Hypo. = 65-78%
Lith. Hypo. = 29%
Gas Chl. = 100%
Trichlor = >99%
Dichlor = >99%
Bromine = 95.5%
pH in 1% solution:
Sod. Hypo. = 13
Cal Hypo = 8.5-11
Lith Hypo = 10.8
Gas = 0
Trichlor = 2.8-3.5
Dichlor = 6.5-6.8
Bromine = 4.8
pH effect in water:
Sod Hypo = Raises
Cal Hypo = Raises
Lit Hypo = Raises
Gas = Lowers
Trichlor = Lowers
Dichlor = Neutral
Bromine = Lowers
Physical Appearance:
Sod Hypo = Liquid
Cal Hypo = Granular, Tabs, Brisquet
Lit Hypo = Granular
Gas = Gas
Trichlor = Granular, Tabs
Dichlor = Granular
Bromine = Tabs, Granular
Article by: Jef Kirchmaier, CPO, CPT, AEA, WQM
http://www.cpo2go.com
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