RainSoft Ultrefiner II

Questions and Answers

A
Amy MoralesJul 26, 2025
What to do if there is extremely low water pressure from the RainSoft Ultrefiner II outlet or faucet?
- G
  gary65Jul 26, 2025
  If you're experiencing extremely low water pressure, first check if the storage tank is collecting water and ensure the storage tank ball valve is in the open position. Also, inspect the water line from the storage tank or outlet to the faucet for any crimps and remove them. If the storage tank air pressure has leaked, recharge the air valve using a bike pump to 8 psi. If water pressure is restored after this, contact your RainSoft dealer, as a new storage tank may be required. If the problem persists, there may be a blockage inside the Ultrefiner II unit.
E
Emily RuizAug 5, 2025
How to fix RainSoft Ultrefiner II Water Filtration Systems when no water is running from the outlet?
- D
  Danielle DouglasAug 5, 2025
  If no water is running from the outlet, first ensure the water supply is turned on. If it is on, check for any blockages in the water supply line and clear them. Also, inspect the incoming water line for any crimps or pinches and remove them. If the issue persists, the membrane cartridge may be fouled and require replacement.
M
Michael SalazarAug 16, 2025
What to do if drain water is not shutting off in RainSoft Ultrefiner II?
- K
  Kevin TuckerAug 16, 2025
  If the drain water doesn't shut off after 2 to 3 hours, ensure all outlet connections, like faucets or ice makers, are completely closed. If outlets are closed, the drain shutoff cartridge has failed or the check ball is leaking.

Summary

Product Information

System Components Overview

Details the different stages of water treatment in the system.

Product Certification Information

Components Requiring Periodic Replacement

Operational Specifications

System Operating Parameters

Outlines key operational metrics such as pressure, temperature, pH, and water quality limits.

Capacity and Flow Rate

Specifies the system's capacity for VOC reduction and its typical flow rate under pressure.

Additional System Specifications

Details specific requirements and limitations for water supply and installation conditions.

Items Required for Installation

Tools and Parts Needed

Lists essential tools and parts not included in the system package for installation.

Installation Location

Kitchen Sink Installation

Guidance for mounting the system under a kitchen sink, requiring an air gap faucet.

Wall Mount or Other Locations

Guidance for mounting the system in alternative locations, using appropriate air gap devices.

Installation Instructions: Filter and Membrane Cartridge

Installing Filter Housings

Details how to install the pre-filter, membrane, and post-filter into their respective housings.

Installation Instructions: System Mounting and Tubing Connections

Mounting the Ultrefiner II Bracket

Guides on securely mounting the system bracket to the desired location.

Push-IN Tubing Connections

Procedures for making secure tubing connections to system fittings, including depth and lubrication.

Installation Instructions: Faucet, Valve, and Tank

Installing the Faucet and Drain Line

Instructions for selecting, mounting, and connecting the faucet and its drain line.

Installing the Inlet Shut Off Valve

Steps for installing an inlet shut-off valve for water supply control.

Installing the Storage Tank

Guidance on selecting a location and properly installing the water storage tank.

Installation Instructions: Drain and Connections

Connecting the Drain Outlet

How to connect the system's drain outlet to the appropriate drain connection.

Securing Tubing Connections

Instructions for attaching red locking clips to connection fittings for secure tubing.

Installation Instructions: Final Assembly

Applying the System Cover

Steps for placing and securing the system cover, including side panel removal for tubing.

System Start Up: Water Supply and Flushing

Turning on Water and Fast Flushing

Procedures for turning on the water supply and performing the fast flush sequence.

Repositioning Drain Barrel and Filling

How to reposition the drain barrel and allow the system to fill and pressurize.

Checking for Leaks and Draining Tank

Steps for checking system leaks and draining the storage tank.

Routine System Maintenance

System Flushing Procedure

Describes how to periodically flush the system to maintain performance, especially with poor incoming water.

Periodic System Maintenance and Water Testing

Water Quality Testing Recommendations

Advises on periodic testing for nitrate, VOCs, and cysts to ensure system effectiveness.

How to Change the Filters

Filter Replacement Procedure

Detailed instructions on how to safely remove and replace the system's filters and membrane cartridges.

RainSoft Filter and Membrane Replacements

Genuine Replacement Parts Listing

Lists part numbers for replacement filters and emphasizes using genuine RainSoft parts for optimal performance.

Ultrefiner II System Exploded View

Component Identification Diagram

A visual breakdown of all system components with corresponding item numbers for easy reference.

Parts List

Detailed Component Part Numbers

A comprehensive list of all parts with their respective part numbers, quantities, and descriptions for ordering.

Troubleshooting Guide

Performance Data Sheet - Page 1

System Specifications and Metrics

Summarizes critical performance data like production rate, efficiency, recovery, and maximum TDS.

Contaminant Reduction Capabilities Overview

Details the system's effectiveness in reducing various contaminants like Arsenic, Lead, and cysts.

Performance Data Sheet - Page 2

Volatile Organic Compound (VOC) Reduction Data

Lists specific VOCs reduced by the system and their performance data as per NSF/ANSI 53.

Performance Data Sheet - Page 3

Arsenic Treatment Facts and System Capability

Provides detailed facts about arsenic, its forms, and the system's specific capabilities for pentavalent arsenic removal.

Limited Lifetime Warranty Information

Installer Specification Sheet