Equipment Specifications
Watts OneFlow
systems are complete, self-contained, loaded
®
with media and ready to use. A simple inlet and outlet connec-
tion is all that is required for installation. Please review operat-
ing pressures, temperatures and water chemistry limitations to
ensure compatibility.
a
Feed Water Chemistry Requirements
pH
6.5-8.5
Hardness (maximum)
75 grains (1282 ppm CaCO3)
Water Pressure
15psi to 100psi (1.03 bar to 6.9 bar)
Temperature
40°F to 100°F (5°C to 38°C)
Free Chlorine
< 2 ppm
Iron (maximum)
0.3 ppm*
Manganese (maximum) 0.05 ppm
Copper
1.3 ppm**
Oil & H2S
Must be Removed Prior to OneFlow
Silca (maximum)
20 ppm***
* See note about iron, manganese and copper on the next page.
d
b
c
e
NOTICE
*Iron and Manganese
Just as with conventional water softening media, OneFlow®
media needs to be protected from excess levels of certain met-
als that can easily coat the active surface, reducing its effective-
ness over time. Public water supplies rarely, if ever, present a
problem, but if the water supply is from a private well, confirm
that the levels of iron (Fe) and manganese (Mn) are less than
0.3 mg/L and 0.05 mg/L, respectively.
WARNING
!
**Copper
Pursuant to the EPA drinking water standards, the copper
concentration permitted is up to 1.3 ppm. Typically originat-
ing from new copper plumbing, high levels of copper can
foul OneFlow media. For applications with copper concentra-
tion greater than 1.3 ppm, please contact Watts Pure Water
Technical Service at 1-800-224-1299. To further minimize
any problem with excess copper, avoid applying excessive
flux on the inner surfaces of the pipe and use a low-corrosivi-
ty water soluble flux listed under the ASTM B813 standard.
NOTICE
***Silica
OneFlow
media does not reduce silica scaling. While silica
®
tends to have a less significant effect on scale formation than
other minerals, it can act as a binder that makes water spots
and scale residue outside th plumbing system difficult to
remove. This 20 ppm limitation is for aesthetic purposes.
Mechanical Specifications
Model
Max Service Flow (gpm)
Dry Weight (lbs)
Service Weight (lbs)
Pressure drop at peak flow rate is less than 10 psi.
Pressure drop reading taken with inlet and outlet gauges installed
at a common elevation and 80 degree feed water.
Dimensions
(nominal - inches)
a
b
c
d
e
Using OneFlow
with other water treatment
®
equipment.
Due to the unique properties of OneFlow
unique requirements for using OneFlow
tion or other forms of water treatment.
1. OneFlow
must be the last stage in the treatment chain. Do
®
not install any filters after OneFlow
which scale prevention is required. POU drinking water filters,
e.g. carbon or RO are exempt from this requirement.
2. The addition of soaps, chemicals, or cleaners, before or after
OneFlow treatment, may reverse its anti-scale treatment
effects and/or create water with a heavy residue or spotting
potential. Any adverse conditions caused by the addition of
soaps, chemicals, or cleaners are the sole responsibility of the
end user.
3
744
844
948
1054
10
12
16
20
22
25
29
35
80
97
129
168
47
47
49
58
46
46
48
57
7
8
9
10
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
, there are some
®
in conjunction with filtra-
®
or before any devices for
®
1252
30
43
235
55
54
12
1.0
3.0