Introduction
This manual provides instructions for the installation, maintenance, and troubleshooting of the Global Water Replacement Filter Set, designed for use with Global Water G3, G4, and G5 water cooler systems. This filter set consists of pre-filters intended to work in conjunction with a Reverse Osmosis (RO) system to ensure high-quality filtered water.

Image showing the three filters included in the Global Water G3/G4/G5 Replacement Filter Set.
Setup and Installation
Follow these steps to properly install your new Global Water Replacement Filter Set:
- Prepare the System: Locate the water cooler system and ensure the main water supply to the unit is turned off. It is also advisable to depressurize the system by dispensing water from the faucet until the flow stops.
- Remove Old Filters: Identify the filters to be replaced. These filters typically feature a simple twist-and-lock mechanism. Twist the old filters counter-clockwise to unlock and remove them from their housing. Be prepared for some residual water to drip out.
- Install New Filters: Remove the new filters from their packaging. Insert each new filter into its corresponding housing. Align the filter correctly and twist clockwise until it locks securely into place. The spring valve design helps prevent leaks during this process.
- Restore Water Supply: Slowly turn the main water supply back on. Check for any leaks around the newly installed filters.
- Flush the System: Allow water to run through the system for several minutes (e.g., 5-10 minutes) to flush out any air or carbon fines from the new filters. This ensures optimal water quality and taste.
Operating Principles
The Global Water Replacement Filter Set functions as a crucial part of your water cooler's filtration system. These pre-filters are designed to remove larger particles and reduce chlorine, protecting the more sensitive Reverse Osmosis (RO) membrane and extending its lifespan. Water passes through these filters before reaching the RO stage, ensuring a multi-stage purification process.
- Sediment Filtration: Removes dirt, rust, sand, and other particulate matter.
- Carbon Filtration: Reduces chlorine, taste, and odor from the water.
Maintenance
Regular replacement of the filter set is essential for maintaining water quality and the efficiency of your Global Water cooler system.
- Replacement Schedule: It is recommended to replace the Global Water Filter Set every 6 to 12 months, depending on water usage and local water quality.
- Signs of Filter Exhaustion: Indicators that filters may need replacement include a noticeable decrease in water flow, changes in water taste or odor, or visible sediment in the dispensed water.
Troubleshooting
If you encounter issues after installing your new filter set, consider the following troubleshooting steps:
- Reduced Water Flow:
- Ensure the water supply valve is fully open.
- Check if filters are correctly seated and locked.
- If filters are new, allow more time for flushing to remove trapped air.
- Leaks Around Filters:
- Turn off the water supply immediately.
- Remove and re-install filters, ensuring they are twisted firmly into place.
- Inspect O-rings on the filters for damage or improper seating.
- Unusual Taste or Odor:
- Ensure the system has been adequately flushed after installation.
- Verify that the filters are not expired and were installed within their recommended lifespan.
- If the issue persists, contact Global Water customer support.
Specifications
| Brand | Global Water |
| Model Number | ET |
| Set Name | G3/G4/G5 Water Cooler Filter Set |
| Material | Plastic |
| Product Dimensions | 4"D x 6"W x 9"H |
| Item Weight | 2.6 Pounds |
| Certifications | ANSI, NSF |
| Product Benefits | Reduces Chlorine |
| UPC | 760488396520 |
Warranty and Support
Specific warranty information for this replacement filter set is not provided in the product details. For warranty claims, technical support, or further assistance, please contact Global Water directly through their official website or customer service channels.







