Section 2: SRS Installation
1. Determine the proper location for the SRS, with access to the water heater inlet supply piping.
NOTE: When determining the piping, pay close attention to the directional arrows on the remote
base.
2. Connect the inlet/outlet adapters leading to the equipment using 1¼" inch, 1 inch or ¾ inch plumbing. Plumb
as necessary to accommodate a by-pass valve and to complete the installation. Remember to slide the
special remote retaining bracket onto the plumbing before making any solder connections.
3. Attach pipes making sure the water runs into the right port on the remote base opening, as the ports are
facing away from you, to insure downflow service. The outlet piping should be connected to the inlet piping of
the water heater (see figure 6).
Section 3: Application Guide for the SRS
The following water quality parameters must be met before installing of the SRS:
pH > 7.0
Iron (Fe) < 0.3 mg/L
Maximum Operating Pressure = 125 psi
Operating Temperature = 35 – 120 F
The duration of time that the media lasts before replacement in a typical residential application will vary with the
average daily hot water usage in the home, the temperature of the water fed to the SRS, and the inlet hardness
and alkalinity concentrations. Table 1 (SRS 7x35) and Table 2 (SRS 8x40) estimate the life expectancy (length of
time before the media needs to be changed out for new media) based on a daily average hot water usage of 50
gal. First, find the column with the alkalinity in mg/L as CaCO
supply. Then, follow that column down to the corresponding row of hardness in grains/gal as CaCO
on which you end represents the typical lifetime in months of the media using an average of 50 gal/day of hot
water in the home.
For example, if the influent alkalinity is 150 mg/L as CaCO
find the column for 150 mg/L as CaCO
These alkalinity and hardness concentrations give a life expectancy of approximately 10 to 20 months depending
on the system and if an average of 50 gal/day of hot water are used in the home.
Table 1 (SRS 7x35) - Typical Life of the Media in Months based on Influent Alkalinity and Hardness
and the influent hardness is 10 grains/gal as CaCO
3
first. Follow the numbers down until you get to the row for 10 grains/gal.
3
3
closest to the alkalinity concentration of the water
3
. The number
3
3