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For most residential well applications, a 90% Calcite and 10% Corosex is best. However, in some cases an
80%/20% mix or even a 70%/30% is used. It is always better to start with a 90%/10% mix at first as this
solves the majority of low pH problems in the range of 4.5 to 5.9.
For a pH of 6.0 to 6.9 use Calcite alone.
For a pH of 5.0 to 6.0 use a blend of Calcite and Corosex usually 90% Calcite and 10% Corosex, or more
Corosex as needed if the pH is less than 5.0.
How to Mix and Use Calcite Blends
The Calcite and Corosex media is sold and shipped in separate boxes. It does not have to be completely
blended together to use as it will mix during the backwash and rinse cycles. Still, when you are adding the
Calcite and Corosex it is better to blend it lightly in a 5 gallon bucket and then add it. You can also add some
Calcite and then add some Corosex as you are filling the tank. Do not fill tank more than about 2/3rds full.
Note the following:
Calcite is shipped in 50 lb boxes and one box of Calcite is equal to 0.55 cu ft.
Corosex is shipped in 10 lb boxes and 1 box is equal to 0.13 cu ft.
50 lbs of Calcite = 0.55 cubic foot of media
50 lbs of Corosex = 0.66 cubic foot of media
Neutralizers 1.0 Cubic Foot:
Your new 1.0 CF neutralizer includes:
Calcite 100 lbs (2 50-lb boxes) 1.1 cu ft
Corosex 10 lbs (1 10 lb boxes) .13 cu ft
Neutralizers 1.5 Cubic Foot:
Your new 1.5 Cubic Foot Neutralizer Blend filter includes:
Calcite 150 lbs (3 50-lb boxes) 1.65 cu ft
Corosex 10 lbs (1 10 lb boxes) .13 cu ft
Neutralizers 2.0 Cubic Foot:
Your new 2.0 Cubic foot Neutralizer Blend filter includes:
Calcite 150 lbs (3 50-lb boxes) 1.65 cu ft
Corosex 20 lbs (2 10 lb boxes) .26 cu ft
Page 11
Fleck 2510 Neutralizer Installation & Startup Guide
use 90lbs Calcite and 10 lbs Corosex
use 150 lbs Calcite and 10lbs Corosex
use 150 lbs Calcite and 20lbs Corosex
www.cleanwaterstore.com
Rev 062714
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