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MAIN COMPONENTS
Your water treatment system is a Twin‐Alt point of entry (POE) system composed of four components:
A. The control valve and computer assembly
The fiberglass tank assembly's including the water treatment medium
The brine tank assembly including safety float.
Each of these assemblies has a specific func on as described below:
Control Valve Assembly...Automa cally monitors water usage pa erns, ini ates regenera on and moves the valve
through the steps of regenera on.
Media Tank Assembly... A fiberglass vessels, which contains the water so ening media, in the proper diameter and depth
of the media and evenly distributes the feed water throughout the media tank assembly.
Brine Tank Assembly...A polyethylene vessel, which is used to dissolve salt and to hold the proper amount of brine for the
next regenera on. A brine valve keeps the control valve from drawing air into the system.
STEPS OF OPERATION
Service...Hard water flows downward through the water so ening resin where the hardness minerals, calcium and magnesium, as
well as dissolved iron, are removed from the water and are collected on the resin. The amount of resin and the salt dosage
gives resin a certain capacity for hardness and iron removal.
Backwash 1 ...During the cycle the water flows upward through the resin bed and washes collected sediment or other foreign ma‐
terial to the drain.
Brine and Rinse...The brine solu on is drawn from the brine tank and slowly flows downward through the resin collec ng the hard‐
ness and iron as it goes. The brine carries the hardness and iron with it and rinses them to the drain.
Backwash 2 ...Same as backwash 1 above but of slightly shorter dura on.
Fast Rinse...Water flows downward through the resin and to the drain carrying with it the remaining traces of brine.
Brine Tank Refill...A predetermined volume of water flows into the brine tank and dissolves a calculated amount of salt crea ng
brine for the next genera on. This occurs at the onset of the next Service cycle. Be sure that there is always un‐dissolved
salt remaining. Since the frequency of regenera on is reasonably consistent, a regular addi on of salt should be sched‐
uled. Approximately 6"‐8" of salt must be in brine tank. In some cases the installa on technician may decide a pre‐brine
refill may be appropriate. If so brine refill will occur 2 hours prior to regenera on and will result in minimal water in the
brine tank assembly during service posi on.
Total Regenera on Time (Backwash 1 through Fast Rinse) can be anywhere between 57 and 107 minutes depending on se ng
made for certain water condi ons.
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