Hydrotech 5600 SXT Valve Iron & Sulfur Filter Operation Manual - Manual (Page 5)

Installation Instructions
All government codes and regulations governing the installation of these devices must be observed.
CAUTION: If the ground from the electrical panel or breaker box to the water meter or underground copper pipe is tied to the copper
water lines and these lines are cut during installation of the Noryl bypass valve and/or poly pipe, an approved grounding strap must
be used between the two lines that have been cut in order to maintain continuity. The length of the grounding strap will depend upon
the number of units being installed and/or the amount of copper pipe being replaced with poly. See Figure 1.
In all cases where metal pipe was originally used and is later interrupted by poly pipe or the Noryl bypass valve as in Figure 1 or by
physical separation as in Figure 2, an approved ground clamp with no less than #6 copper conductor must be used for continuity, to
maintain proper metallic pipe bonding.
Check your local electrical code for the correct clamp and cable size.
Figure 2
Figure 1
Electrical Panel
Ground Strap
Poly Pipe
Ground
From
Panel Poly Pipe
Filter
c/w Plastic Bypass
Copper Pipe
Water Meter
Outside Water Line For Outside & 3rd Tap Comes From Meter
Filtered Water Line in Home
Unfiltered Water Bypass
Loop Cut & Capped Ground Strap Required
Because of Break in Continuity
Sizing and Operating Requirements
Water Pressure
The water system must have a pump big enough to deliver the recommended backwash rate with a minimum pressure at the inlet of
the filter of 20 psi (137 kPa). If the existing system cannot do this, it must be upgraded to do so. Whenever possible, the water system
should be adjusted to deliver at least 30 psi (206.8 kPa) for even more satisfactory results. Maximum pressure should not exceed 100
psi (689 kPa).
Backwash Flow Rates
The most important criteria in sizing an iron filter is the capacity of the pump. The water must pass through the filter media at a
service flow rate that allows it to oxidize and collect the iron. The filter must also be backwashed at a flow rate sufficient to dislodge
and remove the captured iron. Failure to provide sufficient water will cause a build-up of iron in the filter media, impairing its iron
removing ability and resulting in iron bleeding out into the service water.
In order for your filter to backwash and rinse properly, your pump must be capable of providing the backwash flow rates indicated in
the above specification chart.
Capacity
An iron filter with one cubic foot of filter media regenerated with one Potassium Permanganate feeder will work well for most
residential applications. For example, with iron in the range of 3-6 ppm, most filters will need to regenerate every two or three days
providing an average family size of four or five people.
The specification chart above shows the iron removal capacity in ppm that can be expected on automatic iron filters. The
specifications are based on obtaining 6,000 ppm of capacity for each cubic foot of filter media. Two different Potassium Permanganate
feeders are available – one feeding 2 oz. per regeneration, the other feeding 4 oz.
In order to obtain the above capacities, the pH of the water being treated must be 7.0 or above. In the event the water is below 7.0, it
must be treated with the appropriate equipment before going through the filter.
Removal of Iron, Manganese & Hydrogen Sulfide
For the purpose of sizing a filter, consider 1 ppm of manganese equal to 2 ppm of iron and 1 ppm of hydrogen sulfide equal to 3 ppm
of iron. Manganese and hydrogen sulfide (sulfur) are more difficult to oxidize than iron. Therefore, we suggest that, when making your
sizing calculations and regeneration frequency calculations, calculate iron x 1, manganese x 2 and hydrogen sulfide x 3. All three
must equal less than 10 ppm. Manganese is often present in water when iron is present. Hydrogen sulfide can normally be identified
by a strong rotten egg odor.
3