Dosing device for liquid pH and chlorine control - pre-assembled on plate for pool from 10 to 150m³
Dosing device for liquid pH and chlorine control - pre-assembled on plate for pool from 10 to 150m³
- Delivery time: 1 to 2 days. Free from £100 (UK)
- Free returns within 14 days. 2-year warranty
- Secure payment by debit card, credit card or bank transfer
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Now 5% extra end-of-season discount on LCD display versions
Usage
The Beni Twin is an automatic water treatment device for dosing liquid chlorine and pH neutraliser, of high quality and at an incredible price.
Suitable for large pools up to 150m3.
The Beni Twin is designed for pool DIY enthusiasts. Since it is fully pre-assembled and supplied with two rubber ends, it is very easy to install. Connect the inlet and outlet with rubber sleeves to the 50mm pipe (see diagram in product images).
For connection to 32 or 38 mm Intex | Bestway or 2 inch threaded pipe, contact us via chat or info@zwembad.co![]()
3 Options
- LCD/Display controlled version (without WiFi)
- WiFiPOOL app controlled version (without LCD/Display)
- With or without level switch to stop dosing when the acid or chlorine container is empty
Since 2025, the flow switch is standard to prevent damage during power outages.
Installation and Pairing of the WiFiPOOL Version
After installing the WiFiPOOL app (available for Android and iOS), scan the barcode on the device to connect it to your phone and WiFi network. Once all devices are connected, set the automation conditions by scanning the barcode in your manual. These are ready-made factory settings applicable for most pools.
Benefits of the WiFiPOOL Controlled Version
- With a special "slow / fast dosing" option in the app, the Beni Twin WiFi is suitable for both spas and pools up to 150m³.
- You can read your pH and Redox (Chlorine) levels on your mobile phone, view graphs, and receive alarms. Now you can adjust your pool chemistry via your phone.
- The calibration, activated by pressing a "calibration" button followed by on-screen instructions, is extremely simple.
Fail Safe
Every Pool Twin comes with a “flow switch” that stops dosing when no water flow is detected.
Level detection stops dosing of the pH neutraliser when the neutralisation tank is empty.
Once water passes through the measuring/dosing nipple, the device measures pH and Redox (chlorine) and automatically adjusts pool levels. When used correctly, you are 100% sure of clean and healthy water.
24/7 Control Now Guaranteed
Since our recent upgrade (January 2025), the WiFiPOOL controller operates both via cable and WiFi. Its core is the Gen 2 chipset board, enabling full pool control (see hardware below). The biggest advantage is that the automation, whether factory preset or custom configured, is now stored on the chip. If the WiFi connection drops, your water treatment continues according to parameters stored in the chip.
Optionally, Ethernet cable connection is available to guarantee connectivity. The major benefit however is that the initial device configuration is much faster and easier.
Contact us for more information about compatibility and advanced operation since 2025.
Plug and Play
Hardware
The core of this device is the WiFiPOOL Gen 2 circuit board, which allows full pool control. This board supports measurements of pH, RX (chlorine), flow, level (x3), temperature (x3), pressure and conductivity (salt content).
Additionally, four control devices (frequency controller, peristaltic pumps, salt electrolysis, UV lamp, automatic valve, etc.) can be connected. The board has a connector for an Ethernet cable which can be used instead of a WiFi signal.
In summary: This device allows you to systematically build a complete home automation system without extra investment in control equipment.
Software
Connecting and configuring WiFi devices via the WiFiPOOL app is very simple and efficient. The entire automation strategy is automatically installed on the phone at the time of installation.
Recommended Upsell
To prevent blockages/leaks in the chlorine injector, we recommend using descaling agent in the liquid chlorine.
We also offer your annual maintenance kit now with a discount.
Included in Delivery
- Beni Twin (WiFi or Display) panel with 2 peristaltic pumps
- Inlet feet, suction and injection pipes included and pre-installed in the measuring and injection pipe
- pH and RX measuring box,
- pH and Redox probe,
- pH and Redox calibration liquids,
- 2 rubber sleeve connections 50mm.
- Ethernet cable (WiFi version)
- Clearly illustrated step-by-step manual
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Manuals - Quick start guide - Demonstration videos - Brochures - Spare parts
Please refer to our download section for more technical insight into our installation and maintenance advice.