Installation Guide

Installation Guide

Both the NEC-20 and NEC-2000 install inline between your pump outlet and filter inlet using the hardware supplied in the box. Installation requirements vary depending on your pool type — see the guidance below for your specific setup.

If you have any questions during installation, contact our team — we're happy to help.

Before You Start

  • Turn off your pool pump and isolate power before beginning
  • Identify your pump outlet and filter inlet — the Claritech unit installs between these two points
  • Check your pipe diameter matches the supplied adapters (see specs below)
  • Have a timer switch ready — use the supplied NEC-20 timer to regulate its runtime independently of the pump

NEC-20 Installation (Above-Ground Pools)

The NEC-20 can be installed by the customer on an above-ground pool with a straightforward hose-connected setup, provided the installation instructions are followed. Customer installation in this setup does not, by itself, invalidate the warranty or guarantee.

For spas, in-ground pools, or any setup requiring modifications to fixed or high-pressure pipework, installation must be carried out by a qualified pool or spa technician. If you’re unsure which applies to your setup, contact us before installation.

What's in the Box

  • 1x NEC-20 unit (electrodes pre-installed)
  • 2x 32/38mm hose adapters
  • 1x Threaded adapter (1½" / 1" with supplied adaptor)
  • 1x Timer Switch
  • 1x Test Kit

Step-by-Step

  1. Turn off the pump and isolate power at the switchboard.
  2. Select your installation point — between the pump outlet and the filter inlet. The unit can be installed in either flow direction.
  3. Cut the hose at the chosen installation point and attach the 32/38mm hose adapters to each end of the NEC-20.
  4. Secure the connections using the supplied hose clamps. Ensure fittings are tight and leak-free.
  5. Connect the supplied power supply to the NEC-20 power jack and the timer switch, then to a weatherproof power socket protected by a circuit interrupter (RCD).
  6. Set the timer to regulate NEC-20 runtime within the pump's operating period. The NEC-20 should only operate when water is actively flowing through it; it does not need to run for the pump's entire cycle.
  7. Turn on the pump and check for leaks at all connection points.
  8. Adjust runtime using the supplied timer and regular copper testing to achieve 0.7–1.0 mg/L. Follow the NEC-20 manual's starting guidance for your pool volume. Increased ion levels can shorten electrode life and may discolour plastic or metal pool parts.
  9. Test your water regularly using the included pool tester's low-range copper scale (LR). Use the middle chamber and follow the manual's reagent instructions. Target copper ion range: 0.7–1.0 mg/L. The manual's 0.8 mg/L example is within this range.

NEC-20 Installation (Spas & Hot Tubs)

Professional installation by a qualified spa or pool technician is required. Self-installation will void the product warranty and guarantee.

NEC-2000 Installation (In-Ground Pools)

Professional installation by a qualified pool installer is required for the NEC-2000. Self-installation by the homeowner will void the product warranty and guarantee. Depending on your existing pipework, additional piping may be required.

What's in the Box

  • 1x NEC-2000 unit (electrodes pre-installed)
  • 1x Installation hardware kit (2" BSP fittings, threaded nipple adaptor for 1" connections)
  • 1x Timer Switch
  • 1x Test Kit

Step-by-Step (for reference)

  1. Turn off the pump and isolate power at the switchboard.
  2. Select your installation point — strongly recommended between the pump and the filter. The unit can be plumbed in either flow direction (inlet and outlet are interchangeable).
  3. Connect the 2" BSP fittings to the inlet and outlet of the NEC-2000. Use the supplied threaded nipple adaptor if your pipework is 1".
  4. Secure all connections and check for correct alignment. Ensure no conductive contact between cathode and anode components of the electrode cartridge.
  5. Connect the NEC-2000 power cable to a dedicated timer switch, then to a weatherproof power socket fused by a circuit interrupter (RCD).
  6. Connect the pump to a separate timer on its own power socket — also fused by a circuit interrupter.
  7. Set both timers so the NEC-2000 only runs while the pump is active. The electrode must never operate without water flowing.
  8. Turn on the pump and check all connections for leaks.
  9. Set the Current BCD switch (1–9, in 0.16A steps up to max. 1.5A) and the Time BCD switch (1 = 0.5 hrs, 8 = 4.0 hrs, 9 = continuous) based on your pool volume and water conductivity.
  10. Test your water after 24–48 hours. Target copper ion range: 0.7–1.0 mg/L. Adjust Current and Time settings as needed.

Electrical Safety

  • Both units must be connected via a circuit interrupter (RCD/GFCI) — this is a safety requirement, not optional
  • Use weatherproof outdoor-rated power sockets only
  • The electrode must only operate when the filter pump is active and water is being circulated
  • Never immerse the control head in water during electrode cleaning

Ongoing Maintenance

  • Check copper ion levels regularly using the included 3-chamber pool tester
  • Clean electrodes periodically by removing and soaking in an acid detergent bath — do not allow liquid to contact the control head
  • Replace electrodes when the error light illuminates, or approximately every 2–5 years depending on usage
  • NEC-2000 electrode replacement requires removing 6x M8 Torx screws (or M6 Allen key) to lift the control head, then detaching the electrode from the lid using 2x M6 brass nuts

Need Help?

Our team is available to assist with installation questions, sizing advice, and troubleshooting. Get in touch here.

Full user manuals are available on request.