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TGI TGI-525 - User Manual

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Model: TGI-315 3 Stage CTA RO System*
TGI-315TFC 3 Stage TFC RO System
TGI-415 4 Stage TFC RO System
TGI-525 5 Stage TFC RO System
TGI-625U 6 Stage TFC RO & UV System
TGI-625U/DX 6 Stage TFC RO & UV System, Deluxe Model
*
(NSF and WQA certification do not apply to TGI-315)*
© Copyright 2007 TOPWAY GLOBAL INC.PRINTED IN THE U.S.A.
INSTALLATION & SERVICE MANUAL
Under-the-sink Reverse Osmosis Systems
SERIES D
®
Manufactured by
TOPWAY GLOBAL, INC.
Brea, Calif. 92821 U.S.A.
System Tested and Certified by NSF International against ANSI/NSF Standard 58 for the reduction of Arsenic, Barium,
Cadmium, Copper, Cyst, Fluoride, Hexavalent Chromium, Lead, Radium 226/228, Selenium, TDS, Trivalent Chromium,
Turbidity.
System Tested and Certified by WQA against ANSI/NSF Standard 58 for the reduction of Arsenic, Barium, Cadmium, Copper,
Cyst, Fluoride, Hexavalent Chromium, Lead, Radium 226/228, Selenium, TDS, Trivalent Chromium, Turbidity.

Questions and Answers

  • J
    Jennifer RobertsAug 4, 2025
    Why is my TGI Water Filtration System producing water slowly?
    • L
      lopezsamuelAug 4, 2025
      Slow water production in your TGI Water Filtration System can occur due to several reasons: * Low water pressure: Consider adding a booster pump. * Crimps in the tubing: Ensure that all tubing is straight and free of kinks. * Clogged prefilters: Replace the prefilters. * Fouled membrane: Replace the membrane.
  • T
    thomastuckerAug 8, 2025
    What to do if water from TGI Water Filtration System tastes or smells bad?
    • P
      Pamela FordAug 8, 2025
      If the water from your TGI Water Filtration System has an offensive taste or smell, the following could be the cause: * The post carbon filter is depleted: Replace the post carbon filter. * The membrane is fouled: Replace the membrane. * Sanitizer was not completely flushed out: Drain the storage tank and refill it overnight.
  • D
    Dr. Jose ShepherdAug 12, 2025
    Why is my TGI Water Filtration System leaking?
    • A
      Anthony MasonAug 12, 2025
      Leaks in your TGI Water Filtration System can be attributed to: * Fittings not tightened properly: Tighten the fittings as necessary. * A twisted O-ring: Replace the O-ring. * Misalignment of the hole in the drain saddle: Realign the drain saddle.
  • Z
    Zachary SimmonsAug 17, 2025
    What to do if there is a noise from the faucet of my TGI Water Filtration System?
    • P
      Patrick CastilloAug 17, 2025
      The noise from the faucet in your TGI Water Filtration System could be due to: * Air gap faucet: The noise should disappear after the system shuts down. * Location of the drain saddle: Relocate the drain to above the water trap. * Restriction in the drain line: Check for blockages, which are sometimes caused by debris from the garbage disposal or dishwasher.
  • R
    robinbellAug 21, 2025
    What to do if my TGI Water Filtration System produces a small amount of water?
    • H
      hernandezheidiAug 21, 2025
      A small amount of water from the storage tank of your TGI Water Filtration System can be due to: * The system is just starting up: It normally takes 2-3 hours to fill the tank. * Low air pressure in the storage tank: Add pressure to the storage tank. The pressure should be 8-10 psi when the tank is empty.
  • S
    schroedershawnAug 26, 2025
    Why is the water from my TGI Water Filtration System milky colored?
    • R
      rthomasAug 26, 2025
      Milky colored water from your TGI Water Filtration System is typically due to air in the system. This is a normal occurrence during the initial startup of the RO system and should disappear with normal use within 1 to 2 weeks.
  • J
    Joanna SmithAug 30, 2025
    What to do if there is no drain water from my TGI Water Filtration System?
    • T
      Theresa PalmerAug 30, 2025
      If there is no drain water from your TGI Water Filtration System, the flow restrictor may be clogged. Replace the flow restrictor to resolve this issue.

Summary

Recommended Tools List

TGI-315 & TGI-315 TFC Filtration Process

Specifications

Details the technical specifications for the TGI-315 and TGI-315TFC filtration process.

Replacement Parts

Lists the TGI item numbers, descriptions, and service life for replacement parts.

TGI-415 Filtration Process

Specifications

Details the technical specifications for the TGI-415 filtration process.

Replacement Parts

Lists the TGI item numbers, descriptions, and service life for replacement parts.

TGI-525 Filtration Process

Specifications

Details the technical specifications for the TGI-525 filtration process.

Replacement Parts

Lists the TGI item numbers, descriptions, and service life for replacement parts.

TGI-625 U;GI-625 U;DX Filtration Process

Specifications

Details the technical specifications for the TGI-625U/DX filtration process.

Replacement Parts

Lists the TGI item numbers, descriptions, and service life for replacement parts.

Installation Quick Look

How to Make a Connection

Step-by-step guide on how to properly connect the system's tubing and fittings.

Installing the Faucet

Faucet Installation Procedure

Detailed instructions for drilling and mounting the RO faucet onto the sink surface.

Tapping into Cold Water Line

Cold Water Line Connection

Procedure for safely connecting the RO system to the cold water supply line.

Mounting Tank Ball Valve

Tank Ball Valve Attachment

Instructions for attaching the tank ball valve to the storage tank.

Mounting the Drain Clamp

Drain Clamp Installation

Guide for installing the drain saddle onto the sink's drain pipe.

System Starts Up

Initial System Startup and Flushing

Procedure for initial system startup, flushing, and tank filling.

Cleaning Procedures

Pre-filter, Post-filter, and Membrane Cleaning

Instructions for removing, cleaning, and reinserting filter cartridges and the RO membrane.

RO Storage Tank Cleaning

Procedure for sanitizing and cleaning the RO system's storage tank.

Preventive Maintenance

Filter Maintenance

Recommendations for storing and maintaining RO system filters.

Membrane Maintenance

Guidelines for maintaining RO membrane performance and shelf life.

Filter and Membrane Change Procedures

Step-by-step instructions for replacing system filters and the RO membrane.

Performance Data Sheet

Series D Specifications

Table detailing specifications like production rate, recovery, and dimensions for Series D models.

Function - Substance Reduction

Lists substances reduced by the system and certification standards.

General Requirements and Performance Data

Installation, Operation, and Maintenance Requirements

General requirements for system installation, operation, and maintenance.

Substance Reduction Requirements

Details influent challenge concentration and permissible product water concentration for substances.

Performance Claims for Percent Reduction

Summarizes system performance claims for reducing specific substances like Cyst.

Warranty Information

What Your Warranty Covers

Details what the TGI warranty includes for systems and replaceable parts.

Conditions of Warranty

Specifies requirements for maintaining warranty validity and system performance.

What TGI Systems Will Not Do

Outlines conditions and operating parameters that void the system's warranty.

Obtaining Warranty Service

Provides instructions on how to get warranty service for your RO system.

Warranty Exclusions and Limitations

Lists limitations and exclusions regarding TGI's warranty liability and responsibilities.

Replacement Parts Summary

Arsenic Facts

Trouble Shooting

Limited Five Year Warranty

Warranty Coverage Details

Details what the TGI warranty covers for systems and replaceable parts.

Warranty Conditions

Specifies requirements for maintaining warranty validity and system performance.

System Limitations

Outlines conditions and operating parameters that void the system's warranty.

Obtaining Warranty Service

Provides instructions on how to get warranty service for your RO system.

Warranty Exclusions and Limitations

Lists limitations and exclusions regarding TGI's warranty liability and responsibilities.

TGI TGI-525 Specifications

General IconGeneral
BrandTGI
ModelTGI-525
CategoryWater Filtration Systems
LanguageEnglish

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