5
OPERATING CONDITIONS
The following chart provides guidance on the conditions required for successful operation of
your SoftPlus™ system.
USE OF THIS EQUIPMENT OUTSIDE OF THESE OPERATING CONDITIONS MAY
ADVERSELY AFFECT THE PERFORMANCE OF YOUR SYSTEM, RESULT IN SYSTEM
DAMAGE INCLUDING WATER LEAKS AND CORRESPONDING PROPERTY DAMAGE, AND
MAY VOID YOUR WARRANTY.
Minimum Water Pressure
20 PSI
Maximum Water Pressure
90 PSI*
Recommended Water Pressure
40-70 PSI
Water Temperature
36F to 100F (2 to 38C)
Air Temperature
32F to 125F (0 to 52C)**
pH Range
5.0*** to 9.0
Maximum Recommended Hardness
75 grains per gallon (770 mg/l)
Maximum Recommended Iron
< 3 ppm (mg/l)
Maximum Recommended Manganese
< 1 ppm (mg/l)
* While the SoftPlus™ system is built to withstand pressures exceeding 90 PSI, if your water
pressure is greater than 70 PSI, we recommend that you have a certified plumber install a
pressure reducing valve ahead of the SoftPlus™ system.
** The system cannot be subjected to freezing conditions or severe damage to the system
and your property could occur.
*** pH correction is strongly recommended where pH levels are less than 6.5 to prevent
damage to your control valve and plumbing system, and to prevent leaching of metals from
copper and brass plumbing components and solder in your home. Contact your dealer for
recommendations.
For the best performance of your system, the optimal service flow rate should not be
exceeded on a continuous basis. Satisfactory to good performance can generally be
