Serving commercial aquatic facilities across New York State.
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An automated controller is the decision-maker in the equipment room. It reads a sample stream from the recirculation loop, compares pH and sanitizer readings against setpoints, and switches chemical feed equipment on and off, within interlocks and time limits that keep the pool safe when something upstream goes wrong.
Modern controllers do more than chemistry. Depending on configuration they log a year of readings, send alarms by email and text, monitor flow, pressures, and chemical inventory, control VFDs, UV, heaters, and makeup water, and give facilities directors a remote view of every body of water. The controller is the natural place to start a modernization because everything else in the room reports to it.
The diagram below shows where the controller sits: it reads a sample stream, switches feed, and can monitor or control the rest of the room.
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Selection considerations
pH and ORP are standard. Decide whether you need free-chlorine PPM, alkalinity, conductivity, flow, pressures, tank levels, or inventory.
One controller per body of water. Plan the network and BECSys Live account for the portfolio.
Count feed relays, then add VFD, UV, heater, autofill, and BMS interfaces that the renovation scope actually needs.
No-flow lockout, failsafe timers, and pH-alarm lockout are built into BECSys controllers; consider an independent ChemLock interlock.
NSF/ANSI 50 listing and the permit-issuing official's acceptance; New York does not name controllers in code.
Featured and available products
Products FreyTech can help you evaluate, and where documented, install and service. Featured items appear first; availability language is shown on each card.
FeaturedExpandable water-chemistry controller: pH, ORP, and temperature standard; free-chlorine PPM, alkalinity, flow, pressures, inventory, VFD, UV, and heater control optional. Ethernet, alarms, and BECSys Live included.
Available through FreyTech
Best fit: Competition and lap pools, Therapy pools and spas, Municipal indoor and outdoor pools
Mer-Made's Automatic Chemical and Backwash Controllers page lists the PoolLink 100, 200, 300/500 and 1000 Series. The 100 and 1000 Series automate pH and ORP/ppm control with proportional dosing; the 200 Series is a CO2 feed system for pH control.
Available through FreyTech
Best fit: Automatic pH and ORP/ppm control, CO2 pH control, Filter backwash sequencing (FilterLink)
UL 508A-approved interlock panel that locks out chemical feeds independently of the controller when circulation stops.
Available through FreyTech
Best fit: Any commercial pool with pumped or erosion chemical feed
BECSys2 is the smallest controller in the BECS line: a pre-assembled package with flow cell and pH and ORP sensors that is ready to wire to existing feed equipment.
Available through FreyTech
Best fit: Single spa or therapy pool control, Small hotel and apartment pools, Replacing a failed basic controller
Entry-level BECS controller with a two-line display, pH/ORP control, optional free-chlorine sensor, and an optional Communications module for BECSys Live.
Available through FreyTech
Best fit: Single-pool schools, hotels, camps, and clubs, Spas and small therapy pools
BECS's top controller: everything in BECSys5 plus automatic backwash for up to 16 filters, five mechanical relays, and UV/heater interfaces.
Available through FreyTech
Best fit: Large natatoriums and aquatic centers, Waterparks with multiple filter banks
BECSysBW is a dedicated filter controller that automates backwashing for up to 16 filters.
Available through FreyTech
Best fit: Multi-filter sand filter banks, Facilities with backwash holding tanks or sewer discharge limits, Filtration automation alongside an existing chemistry controller
Filtrex supplies variable frequency drive packages for pool recirculation pumps that are pre-wired, pre-programmed and hardware-configured at its Wayne, NJ plant to work with the Filtrex filter and MOD I SSC controller. The package includes a magnetic flow sensor and flow transmitter mounted in the controller enclosure.
Available through FreyTech
Best fit: Commercial pool recirculation pump control, Flow-controlled filtration with Filtrex EC filters, Multi-pump (duplex/triplex) recirculation systems
Filter the full library to controls · Manufacturers in this category: BECS Technology, Mer-Made Filter, Inc., Filtrex, Inc.
Comparison guidance
| BECSys3 | BECSys5 | BECSys7 | |
|---|---|---|---|
| Typical fit | Single pool needing pH/ORP control with optional PPM | Most institutional pools; expandable monitoring and integration | Largest mechanical rooms with automatic filter backwash |
| Display | Two-line backlit | Full graphic | Full graphic |
| Communications | Optional Communications module for BECSys Live | Gigabit Ethernet and BECSys Live standard | Gigabit Ethernet and BECSys Live standard |
| Relays | Per model | 4 solid-state, expandable to 19 | 5 mechanical plus expansion |
| Filter backwash | No | No (BECSysBW separate) | Automatic backwash for up to 16 filters |
FreyTech installation and service
Related system categories
Chemical delivery is how sanitizer and pH chemicals physically reach the water once the controller calls for them.
New York requires manual testing of pH and free and total chlorine at the beginning, during, and end of each swimming period with a DPD kit and fresh reagents (10 NYCRR 6-1.11).
Controllers and feeders are only as good as their consumables: probes, flow-cell parts, pump tubes, feeder nozzles, and the chemical itself.
Technical resources
Solutions
No. Manual DPD tests and the State daily operation record remain required (10 NYCRR 6-1.11 and 6-1.21). Controller logs supplement them and are accepted 'in addition to the test kit' (6-1.29 item 11.8).
No. Plan one controller per body of water; BECSys Live consolidates the remote view.
Next step
We review your sample loop, feed equipment, and operating model, then recommend the controller configuration and a cutover plan.
Serving commercial aquatic facilities across New York State.