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Rainfresh CAFO 948 - User Manual

Rainfresh CAFO 948
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CAFO948 Air Induction Oxidation Iron Filter
Installation & Operation Manual
(Please save for future reference)
Thank you for purchasing one of our ENVIROGARD / Rainfresh products. We are committed to
ensuring that you are totally satisfied.
If you have any problems, don’t go back to the store– please contact us !
Most issues can be resolved over the phone.
Help Line : 1-800-667-8072 (Monday to Friday 8:30 AM to 5:00 PM EST)
www.rainfresh.ca
TABLE OF CONTENTS
System Specifications .................................................. 2
How the CAFO System Works ...................................... 2
Safety Precautions ...................................................... 2
Cautions before Installation ......................................... 2
Installation ................................................................... 3
a) Electrical Requirements ..................................... 3
b) Unpacking the unit ............................................ 3
c) Installation Location .......................................... 4
d) Plumbing the filter unit ...................................... 5
e) Start-up and Programming ................................ 7
i. Level 1 Programming ............................... 7
ii. Level 2 Programming ............................... 10
iii. Manual Regeneration .............................. 11
Other Features ............................................................. 11
Maintenance ................................................................ 11
Troubleshooting ........................................................... 12
Exploded Diagram & Parts List ..................................... 13
Warranty ...................................................................... 16

Questions and Answers

  • J
    James HernandezAug 18, 2025
    What to do if my Rainfresh Water Dispenser unit does not regenerate?
    • V
      Valerie HicksAug 19, 2025
      If your Rainfresh Water Dispenser unit isn't regenerating, here are a few things to check: * Verify the power supply is connected and reset the time of day. * The bypass valve might be closed; open the bypass valve. * A defective circuit board could also be the cause, so replace any faulty parts.
  • A
    Amanda TranAug 21, 2025
    Why is the water pressure low in my Rainfresh CAFO 948?
    • B
      Benjamin SandersAug 21, 2025
      Low water pressure in your Rainfresh Water Dispenser can be due to: * Insufficient water flow from the pump to properly regenerate the unit. Replace the pump with the correct size and consider replacing the filter sand. Also, remove any flow-limiting devices before the unit. * The control valve inlet may be plugged with dirt. Clean the control valve inlet.
  • U
    upittmanAug 25, 2025
    Why does water flow to the drain continuously from my Rainfresh CAFO 948?
    • K
      Kevin GallegosAug 25, 2025
      Continuous water flow to the drain in your Rainfresh Water Dispenser can be caused by: * Incorrect valve settings. Check the valve settings. * An internal leak. Replace the seals, spacer, and piston assembly.
  • J
    Juan PayneAug 27, 2025
    How to fix a blank display screen on my Rainfresh CAFO 948 Water Dispenser?
    • M
      Michelle RobinsonAug 27, 2025
      If the display screen on your Rainfresh Water Dispenser is blank: * Ensure the power cord is properly connected to both the adapter and the receptacle. Re-connect the power cord if necessary. * A defective circuit board may also be the cause. Call Rainfresh to receive a new circuit board with replacement instructions.
  • N
    ngarrettAug 30, 2025
    What to do if filter media is in plumbing lines or water is discolored from Rainfresh Water Dispenser?
    • M
      Matthew HahnAug 30, 2025
      If you find filter media in your plumbing lines or the water from your Rainfresh Water Dispenser is grey or discolored, it's likely that you have reversed the inlet/outlet of the unit. Check the correct inlet/outlet configuration and plumb it correctly. Flush all your plumbing lines, and you may need to top up the sand as well.
  • L
    Laura FlynnSep 2, 2025
    What causes a Rainfresh CAFO 948 filter to leak between the bypass valve and control valve?
    • J
      James HubbardSep 2, 2025
      A leak between the bypass valve and control valve on your Rainfresh Water Dispenser filter is often due to pinched or damaged O-rings. Check the metal adapter clips holding the two components together and tighten if necessary. Replace the O-rings as required.
  • P
    parkerericaSep 5, 2025
    Why does my Rainfresh Water Dispenser unit cycle continuously?
    • T
      Thomas DanielSep 5, 2025
      If your Rainfresh Water Dispenser unit is cycling continuously, the cause may be a defective circuit board. Replace faulty parts to resolve this issue.
  • T
    Timothy HarrisSep 8, 2025
    Why is there filter media in the drain line of my Rainfresh CAFO 948?
    • K
      kimberly53Sep 8, 2025
      Filter media in the drain line of your Rainfresh Water Dispenser is due to an incorrect or missing drain line flow control (DLFC). Check and replace the DLFC.
  • E
    ewhiteSep 12, 2025
    Why is no water flowing into the filter unit of my Rainfresh CAFO 948?
    • J
      johnsonalexandraSep 12, 2025
      If no water is flowing into the filter unit of your Rainfresh Water Dispenser, the inlet check valve may be installed in reverse. Install the check valve with the arrow pointing towards the bypass valve.
  • J
    Joseph MatthewsNov 14, 2025
    Why is there iron in my filtered water from my Rainfresh Water Dispenser?
    • J
      Jordan JonesNov 14, 2025
      If your Rainfresh Water Dispenser's filter isn't working and there's iron in the filtered water, several factors could be the cause: * The control valve might not be plugged into the power supply, so ensure it is plugged in. * The bypass valve might be closed; make sure it is open. * There could be a leak between the valve and riser tube. Check for cracks in the riser or damage to the O-ring, and replace any faulty parts. * There may be an internal valve leak, in which case you should replace the valve seals, spacer, and piston assembly. * An air leak in the brine check valve or inlet check valve could be the issue. Push the brine check valve fully into the fitting or replace it. Also, replace the inlet check valve. * The supply water pH might be too low. In this case, install...

Summary

System Specifications

System Operation Overview

Safety and Precautions

Safety Precautions

Follow all applicable province/state and local regulations for safe operation.

Cautions Before Installation

Adhere to plumbing codes and electrical requirements for proper installation.

Installation Guide

Electrical Requirements

Ensure a GFI outlet is within 5 feet and use jumper wire if needed.

Unpacking the Unit

Identify all included components and prepare for installation.

Well Pump Flow Rate Check

Measure water collected from tank drawdown to determine pump flow rate.

Plumbing and Connections

Bypass Valve Operation

Understand service and bypass positions for maintenance and operation.

Inlet;Outlet Fitting Attachment

Firmly push and lock inlet/outlet elbow fittings into the bypass valve.

Drain Line Connection

Connect the flexible plastic drain tubing to the unit.

Initial Water Flow and Startup

Drain Line Air Gap

Ensure a minimum 3-inch air gap for the drain line to prevent backflow.

Initial Water Filling

Slowly fill the tank to prevent media displacement and check for leaks.

Start-up and Programming

Control Valve Interface

Overview of the LCD screen and the four control buttons (MENU, SET/REGEN, UP, DOWN).

Level 1 Programming: Set Current Time

Steps to unlock the screen and set the current hour and minute.

Level 1 Programming: Set Current Date

Steps to set the current month, day, and year on the control valve.

Level 1 Programming: Set House Parameters

Configure number of people and feed water iron settings.

Level 2 Programming

Manual Regeneration and Features

Manual Regeneration Procedure

Instructions for initiating an immediate regeneration cycle.

Power Failure Operation

How the unit operates and retains settings during a power outage.

Manual Bypass

Procedure to isolate the filter system using the bypass valve.

Maintenance and Winterizing

Routine Maintenance

The filter requires no routine maintenance, but media may need replacement.

Care of CAFO948 Iron Filter

Cleaning instructions to maintain the unit's appearance.

Winterizing the System

Instructions for protecting the unit from freezing temperatures.

Troubleshooting Guide

Parts List

Limited Warranty Information

Rainfresh CAFO 948 Specifications

General IconGeneral
BrandRainfresh
ModelCAFO 948
CategoryWater Dispenser
LanguageEnglish

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