Use and Care Manual
Table Of Contents
- We stand behind our products
- Packing List
- Product Features
- Prior to Installation
- Installation
- Step 1. Install Feed Water Adapter (AFW43)
- It is highly recommended that you watch the video ''How to Install a Feed Water Adapter for Reverse Osmosis (RO) and Other Applications | iSpring AFW43'' on YouTube.
- Turn off the Cold Water Supply Valve (CWSV) under the sink and open the kitchen faucet to release pressure. Prepare a towel or bucket to catch any water drips. Disconnect the kitchen faucet connector pipe from the CWSV.
- Step 2. Install Drinking Water Faucet
- Drill a hole to install the faucet
- Install a faucet bracket (included) instead of drilling a hole (Optional)
- How to Drill a Hole in Sink or Counter-top
- Step 3: Install the System
- Step 4. Tubing Connection
- Install the tubings onto the inlet and outlet of the system. Follow the quick connect instruction to properly connect the system.
- Note: Make sure that water flows in the correct direction from the 1st stage to the 4th stage.
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- Step 5. System Start-up
- Make sure no tubing is kinked. Place a towel under the system to catch any possible water leaks.
- Open the drinking water faucet. Slowly turn on the Feed Water Adapter (AFW43) and check for leaks. The top 3 causes of leaks are 1) The tubing is not fully inserted into the quick-connect fitting. 2) The O-ring is not in the correct place or is kinked...
- Rinse the system for 5-15 minutes. It is normal to see residual carbon and fine air bubbles in the water when flushing the system for the first time.
- Check for leaks daily for the first two weeks after installation to ensure the system is functioning properly.
- Maintenance
- Optional Add-on
- Troubleshooting
- Warranty
Maintenance
All iSpring Water Filter Systems are designed with ease of use and low maintenance in mind. If the
filter cartridges are changed on schedule as suggested, the system will work properly for years to
come. See the chart below for the filter pack model numbers for your system. The filter packs can
be found on 123filter.com, Amazon, or HomeDepot.com.
Filter Set Model
Content
F3-CUA4
(Stage 1)*1+(Stage 3)*1+(Stage 4)*1
F4-CUA4
(Stage 1)*1+(Stage 2)*1+( (Stage 3)*1+(Stage 4)*1
F5-CUA4
(Stage 1)*2+(Stage 3)*1+(Stage 4)*2
F7-CUA4
(Stage 1)*2+(Stage 2)*1+( (Stage 3)*2+(Stage 4)*2
When to change the filter?
The filters are highly suggested to be replaced when they reached their recommended replacement
cycle. However, the actual lifespan of filters may vary depending on the source water quality and
daily usage. If you notice a great decrease in the tap water flow, or detect a unpleasant smell, taste,
and odor, it would be a good time to get your filters changed.
Stage No.
Filter Method
Filter Lifespan
1
PP Sediment, 5 micron
6-12 months
2
Ultrafiltration Semi-permeable Membrane
12 months
3
KDF + Activated Carbon
6-12 months
4
Post Activated Carbon
6-12 months
How to change the filters?
A. Turn off the inlet cold water valve. Open the drinking faucet to release pressure.
B. With a towel or bucket underneath, twist the used filter cartridge clockwise to take it off.
C. Twist the new filter cartridge counterclockwise into the machine head.
D. Check the tubing connection. Rinse the system for 5-15 minutes. The filter replacement is now
finished.
O-rings: Replace every 3 years or sooner if leak happens at O-rings.
What should I do with the system when going out of town?
When you are leaving for an extended time, you will want to shut off the water supply to the
system and empty the water inside the system. To do this, close the knob on the feed water adapter,
and open the drinking water faucet until it stops running. This will signify that the system is empty
of water. The filters should be replaced if the system is not used for over a week as they will be
sitting in stagnant water.
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