Feed Water Requirements - Diamond H2O Element LT Series Manual

Feed Water Requirements

1. Plumbing feeding the element must be at least ¾" in diameter.
2. Filtered water must be used on the membrane. The element has a 5 micron filter to remove
particles to drastically extend the life of the membrane. Changing these filters every month is
recommended to extend the life of the membrane. Follow instructions on page 10 to change
filters.
30-0021-XX
30-0122-XX
3. Soft Water is recommended. Excessive water hardness or iron concentrations may form scale
over the membrane and cause clogging. This will drastically reduce the useful life of the
membrane. Installing a water softener before each system to reduce hardness and iron is
recommended.
4. Anti-Scalent recommended. Slightly soluble contaminants like calcium sulfate, silica, or colloidal
clay will cause clogging. A continuous injection of an anti-scalent should be used if these
contaminants are present.
Recommended Specifications:
Total Dissolved Solids
Iron
Silica
Organics
Feed SDI
Free Chlorine
Inlet Pressure
Membrane Operating Parameters:
Membrane
Typical Operating Pressure
pH Range Continuous
Max Pressure Drop
Nominal Rejection
Element Series Manual
Replacement 5 Micron Filter
Alternate Replacement 5 Micron Filter
< 2000 ppm
< 0.1 ppm
< 10 ppm
< 2 ppm TOC
< 3.0
0.1 ppm
20 – 80 psi
Thin Film Composite
150-200 psig
3 – 10
10 psig per membrane Max Calcium Hardness < 0.0 LSI
98%
Hardness
Manganese
Hydrogen Sulfide
Turbidity
pH
Temperature
Max Pressure:
pH Range, Cleaning
Max Temperature
< 17 ppm
< 0.1 ppm
< 0.0 ppm
< 0.1 NTU
3 – 10
40-95°F
400 psig
1 – 12
113°F
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