In-Direct Commercial Controllers

Rainforce H Series Controller

Rainforce H-Series Advance Header Tank Rainwater Controller


The 3P RainForce H series commercial Rainwater Controller performs all the functions you would expect of a commercial indirect system such as multiple pump control, duty standby, BMS output, whilst remaining extremely compact. Header tank level control control is achieved by software with the emphasis on providing maximum availability of water without the efficiency losses associated with ball cocks, or the reliability problems of a  float switch based system.

Unlike many other systems which are often continental direct pressure systems feeding a ball cock, RainForce H Series are designed specifically for commercial header tanks. Filling the header tank without flow restriction guarantees maximum efficiency.

Smart software employs a maximum availability strategy, adapting to the supply conditions and increasing the level of mains water top-up when rainwater is unavailable. In addition, Top-up Assist mode activates all pumps (if possible) and mains water if the water in the header tank falls to a critical level.

No water ever needs to go through the Control Panel. Operation of the pumps and solenoid can be remote or not.
Any electric pumps, solenoids, motorised valves, etc can be used. Single or 3 Phase (with optional connector unit), Rainforce does not need to ‘know’ the pumps it uses. Optional hardware (contactors) allows pumps of any power up to the limit of your electrical supply. Pumps can be replaced with other makes and models at any time and don’t need to be matched. Downtime due to reprogramming or lead times for sourcing a specific pump are eliminated.



  • 3 Modes or operation, Automatic, Mains Only, and Rainwater Only.
  • 2 Top-up strategies, Eco and Max.
  • Duty Standby/Duty Assist with alternation.
  • Modular ‘hot swap’ of pumps and solenoids.
  • Automatic Tank Level Calibration.
  • Multiple pump model support at 230Vac 50Hz or any supply voltage/phase via contactors/overloads.
  • BMS Switched output.
  • Optional BMS serial output.
  • Advanced Fault Tracking.
  • Fault Warning LED.
  • Auto hunt for redundant spare pump during pump failure in single pump mode.
  • Swappable MCU chip (software).
  • Solenoid valve isolation on fault – reducing fire risk from overheat.
  • Overvoltage protection.
  • Brownout protection.
  • Single phase (3 phase via connection kit).
  • Watchdog timer.
  • Fused Outputs

Adjustable Settings

  • Operation Mode, Auto/Mains/Rain.
  • Top-up Mode, Eco/Max.
  • Pump Mode (Pump1,Pump2,Twin Pumps – Simaltaneous, Twin Pumps – Duty Standby/Assist with alternation.
  • Minimum Rainwater Level (dry run prevention).
  • Fault code display.
  • Fault code erase.
  • Input test diagnostic screen.
  • Output test diagnostic screen.
  • Manual Stop – with BMS activation.
  • Restore Factory Default Settings

OEM Solutions

3P Control Panels are supplied either as a panel only, or can be offered as a kit, comprising of the panel, pumps, cables, pressure vessel, hose kits, etc.

We work with our customers to provide specific product bundles, with panel and software branded to your requirements.

We provide full training, design and technical support, and will customise the product and accessories to your requirements, and full UK based support and spare parts availability.


  • Can be used in a packaged booster set (skid mount) or distributed installation.
  • Excellent configurability whilst retaining an intuitive menu driven user interface.
  • Made in Britain. Designed, built and programmed entirely in the UK by 3P Technik.
  • Full UK support , with customisations to hardware and software available with very short lead times.
  • Modular design allows extremely rapid swap-out of parts. Including hot-swap of pumps and sensors (no power-off). Also no need to match replacement pumps.
  • Very low lead times. All spare parts stocked by us in the UK for immediate dispatch. We don’t follow the ‘buy to order’ business model of continental manufacturers whose lead times are often unsuitable for UK clients.
  • We can supply not only the control equipment, but also pumps, filtration and all tank fittings.

H Series Overview

Level Control
OutputsControl Panel
Power Consumption
RF200HFloat Switch2 x 10A Pumps
1 x 10A Top-up Solenoid
1 x 10A Drain Solenoid
7w2 x unused1 x Tank Sensor
4 x Header Tank Sensors
RF300HPressure Sensor2 x 10A Pumps
1 x 10A Top-up Solenoid
1 x 10A Drain Solenoid
7w1 x pressure sensor
1 x unused
4 x Header Tank Sensors
1 x unused



  • RC3P Series 3 Phase 230v/400v IP65 Rated Connection Kits with contactors, thermal overload protection and optional over/under voltage detection, phase loss detection.
  • IP65 Rated Isolation Switches.
  • IP68 Rated Cable joints.
  • Vented sensor cables (multiple types).