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For your health and the protection of your pool equipment, it is essential that your
water be chemically balanced. The following levels must be used as a guide for bal-
anced water.
Recommended Level(s)
Water Temp. (Deg. F)
pH
Total Alkalinity (PPM)
Calcium Hardness (PPM)
Salt (PPM)
Free Chlorine (PPM)*
Total Dissolved Solids
(PPM)
•
Occasional chemical shock dosing of the pool or spa water should not damage the
heater providing the water is balanced.
•
Automatic chemical dosing devices and salt chlorinators are usually more efficient
in heated water, unless controlled, they can lead to excessive chlorine level which
can damage your heater, and which is not covered under warranty.
•
Further advice should be obtained from your pool or spa builder, accredited pool
shop, or chemical supplier for the correct levels for your water.
Rev. 17 reflects the following:
Changes to: General Specifications on page 5, Fig. 5 and Teflon tape caution on page 8, Fig. 6 on page 9, Water Pressure
Switch and UG information on page 11, Table C on page 12, Fig. 20 on page 14, Low Water Cutoff information on page 19,
wiring diagrams on pages 20, 21 and 23, pressure switch information on page 24, Warranty information on page 35
Additions: Water chemistry notes on page 2, Flow Switch description, Note, and Fig. 9 on page 10, Piping Configuration on
page 15
Deletions: Figs. 39 and 40 on page 30, Illustrated Parts Lists, now available separately (Catalog No. 9100.65 for 926-1826
and 9100.70 for 2100-4001)
Get user manuals:
See SafeManuals.com
WATER CHEMISTRY
(Corrosive water voids all warranties)
Fiberglass Pools Fiberglass Spas
68 to 88
7.3 to 7.4
120 to 150
200 to 300
6000 MAXIMUM
2 to 3
3000 MAXIMUM
* Free Chlorine MUST NOT EXCEED 5 PPM!
89 to 104
7.3 to 7.4
120 to 150
150 to 200
6000 MAXIMUM
2 to 3
3000 MAXIMUM
2
Other Pool & Spa
Types
68 to 104
7.6 to 7.8
80 to 120
200 to 400
6000 MAXIMUM
2 to 3
3000 MAXIMUM
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