Pentair IC20, IC40 Electrolytic Cell Cleaning Continued, Winterizing, Chemistry You Need to Know

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Electrolytic Cell Cleaning (Continued)

b.To acid clean the cell: Disconnect the IntelliClor cell communication cable from the cell. Remove the AC power from the Power Center, either by switching off the filter pump or setting the associated circuit breaker to OFF.

c.Mix one quart of muriatic acid with one gallon of tap water in a plastic bucket.

WARNING

Working with muriatic acid can be dangerous.

When cleaning elements always wear rubber gloves and eye protection. Always add acid to water, do not add water to acid. Always work in a well-ventilated area. Splashing or spilling acid can cause severe personal injury and/or property damage.

Note: The IntelliChlor acid cleaning kit (P/N 520670) provides a cap for the IntelliChlor unit to allow acid to be poured into the electrolytic cell plates for cleaning.

d.Place the cell vertically in a five gallon bucket. Pour the acid solution (as described above) into the cell until the blades are just covered. Allow the acid solution to bubble, and to clean the blades. The acid should only be contained in the cell and not around it. A foaming action will begin, which is caused by scale (calcium carbonate) being dissolved from the plates. If rigorous foaming action does not begin, the cell does not need to be cleaned (STOP THE CLEANING PROCESS - go on to step “d”). Otherwise, allow the cell to remain in the solution until the foaming has stopped. However, do not leave in acid for more than 1/2 hour. Excessive Acid Washing will damage electrolytic cell.

e.Remove the cell from the bucket and place in an empty five gallon bucket. Rinse the cell thoroughly with clean tap water and inspect. If deposits are still visible, immerse the cell again in the solution for further cleaning. Additional acid may need to be added to the solution.

f.Rinse the cell again with clean tap water and inspect. If clean, replace the cell and resume normal operation.

g.If the acid wash procedure is necessary, it is recommended that a sample of pool water be analyzed by an authorized IntelliChlor service representative for excessive hardness and/or improper water balance.

h.If no scale or debris deposits are observed in the cell after two bimonthly inspections, it is not necessary to continue bimonthly inspections. However, due to possible changes in pool water chemistry and filtering effectiveness, it is recommended that the cell be removed for inspection at least twice a year.

i.Insert the IntelliChlor cell cable plug into the Power Center connector, then restore AC power to the Power Center.

Winterizing

Very little chlorine is needed in cold water. Below 52° Fahrenheit, chlorine production is stopped; the unit will not produce chlorine. This low-temperature cut-off extends the life of the cell. If preventative measures are not taken, freezing water may cause severe damage to the cell. Prevent freeze damage to the cell by running the pool pump continuously or winterize the pool by draining water from pump, filter, and all intake and return lines. Remove the cell, clean and store it.

Chemistry You Need to Know

1.Chlorine Stabilizer (cyanuric acid) is needed in outdoor pools to maintain proper levels of chlorine. Most unstable chlorine is destroyed by the UV radiation from the sun within 2 hours. Chlorine stabilizer should be maintained between 50 - 75 PPM. See Table 3, page 15.

IntelliChlor Installation and User’s Guide