Resources | RCS FAQ

1. Can RCS be used in both chloraminated and chlorinated water systems?

2. What chlorine sources can be used with the RCS?

3. How large of a tank can be controlled with the RCS?

4. How does the RCS prevent over-dosing of the tank?

5. Do the RCS sensors require chemical reagents?

6. How often do the RCS sensors require calibration?

7. Can the RCS be solar-powered?

8. Is the RCS usable in very warm or very cold climates?

9. Can PAX Water provide service and maintenance of the RCS system?

10. What are our options for installation of the RCS?


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1. Can RCS be used in both chloraminated and chlorinated water systems?

Yes, RCS systems exist for both chlorinated and chloraminated systems. In the case of chlorinated systems, the RCS monitors chlorine levels in a water storage tank, and carefully boosts residual levels to reach an operator-defined set-point.

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2. What chlorine sources can be used with the RCS?

PAX can implement RCS using any NSF-60 chlorine source: hypochlorite solution, gas chlorine, electrolytic “on-site” Cl generation and tablet-based Cl systems. For chloraminated systems we also have a range of ammonia sources to choose from.

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3. How large a tank can be controlled with the RCS?

Typical installations of the RCS are in municipal water storage tanks that range in size up to 6 MG. For larger tanks, we implement more powerful mixing systems and, in some cases, multi-site injection of disinfectant.

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4. How does the RCS prevent over-dosing of the tank?

The RCS Smart Controller has built-in safeguards and failsafe features that ensure that excessive volumes of disinfectant cannot be accidentally introduced into the tank. Operators can set feed rate limits and volume limits as well as other alerts.

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5. Do the RCS sensors require chemical reagents?

No, RCS sensors do not require chemical reagents. PAX utilizes reagent-less amperometric sensors that do not require chemical reagents and do not produce a waste stream.

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6. How often do the RCS sensors require calibration?

Once installed and initially calibrated, the water quality sensors typically require calibration once every 3 months.

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7. Can the RCS be solar-powered?

Yes. Because of the efficiency of the PAX Water Mixer and additional components of RCS, solar-powered systems are possible.

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8. Is the RCS usable in very warm or very cold climates?

Yes. The RCS can be implemented to run safely and reliably in sub-freezing conditions as well as during extended periods of hot weather.

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9. Can PAX Water provide service and maintenance of the RCS system?

Yes. PAX Water can offer a range of levels of service or support.

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10. What are our options for installation of the RCS?

PAX Water can provide turnkey installation of the RCS anywhere in the continental U.S. PAX Water also can provide qualified independent contractors for installation. A few water utilities have chosen to perform their own installations of the RCS.

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