With proper installation and maintenance, reverse osmosis filtration systems provide crisp-tasting, clean, pure, and crystal-free water, and a better experience for you for years to come. So today in this article, I am going to do an installation guide (step-by-step) of the iSpring RCC7AK reverse osmosis water filtration system. Hope you’ll find this effort beneficial to you. So, let’s get started.
Things to Consider
Before we begin, here are some precautionary steps to ensure before you start the installation.
❗ System operates in water inlet pressure 45 psi or above, otherwise an addition of a booster pump is required.
❗ A pressure regulator is needed for water pressure 70 psi or above.
❗ The system operating temperature range is 40 degrees to 100 degrees Fahrenheit.
❗ This system requires a drilling hole into the under sink drain pipe for waste water.
❗ The system may also require a drilling hole into the sink or countertop for the RO faucet.
Material / Tools Required:
Installation Guidance – Steps by Step
The following step-by-step guide will take you through the installation process.
Step 1 – Check the Components
Make sure all the important parts of the system are included in the package. The included parts are:
- Reverse osmosis machine head
- Pre filters and housings
- RO membrane
- Drinking faucet
- Water tank
- Feed water adapter
- Color tubings
- Drain saddle
- Tank valve
- Housing wrench
- Leak stop valve
- Spare O-rings and fittings
Step 2 – Installing Feed Water Adapter
As this system is designed to fit under the sink in the kitchen so for the very first step you need to clean out space under the sink before installation. The feedwater adapter that comes with the package fits standard 1/2 or 3/8 inch pipe. So in case, the size of fitting varies you need to get a converter.
- Turn off the cold water supply wave under the sink and turn on the faucet to drain out the air and water from the connector hose.
- Unscrew the faucet connector hose and wrap the towel around to catch any excess water that can rain out.
- Next, install the feed water adapter to the cold-water supply valve and tighten it with a wrench.
- Also make sure the o-ring is sealed properly to avoid any water leakages.
- Re-install the faucet connector hose to the feed water adapter and tighten it with a wrench.
- Now, turn the feed water adapter in off position and insert the red tubing ½ inch deep into the quick connect fitting.
- Then insert the locking clip to lock the tube in place, measure and cut the extra tube.
Step 3 – Installation Of Drain Saddle
Choose a spot on the drain pipe convenient for installing a drain saddle or tubing. A horizontal pipe is recommended to minimize the dripping sound.
- Drill a ¼ inch hole into the drain pipe. You can paste the black sticky pad around the hole to prevent leaks.
- Cut the end of the 1/4 inch black tubing tip to make a 45 degree angle and insert the tubing through the drain saddle to the drain pipe.
- Install the back plate and tighten the two screws with hex nuts while the tubing remains in the hole pull the tubing lightly to make sure it is a secure installation ro drinking faucet.
Step 4 – Installing RO Drinking Faucet
Choose a suitable flat surface on the sink or countertop to install the drinking faucet if your kitchen sink does not have a pre-existing hole you will need to drill a hole of 1/2inch to 1 1/2inch diameter.
- Clean and dry the sink hole area.
- Insert the front plate then the rubber washer into the faucet base then faucet into the sink hole from under the sink then insert the rubber washer followed by the wing nut into the faucet stem, tighten the wing nut to secure the faucet.
- Insert the quick connect coupling to the faucet stem.
- Insert the blue tubing into the push-in adapter 1/2 inch deep and then insert a locking clip to lock the tubing in place.
- Measure and cut the tubing leave enough tubing length for future maintenance.
Step 5 – Installing Water Storage Tank
- Screw the tank valve to the water storage tank to make sure the o-ring is seated correctly inside the tank valve to prevent leaks.
- Insert the yellow tubing ½ inch deep into the tank valve.
- Lock the tubing in place by inserting the locking clip. In inserting the locking clip make sure the tank valve is in the closed position.
Step 6 – Installing Reverse Osmosis Membrane
- Disconnect the push connect fitting on the membrane housing cap, unscrew the cap by turning it counterclockwise using the housing wrench all systems have been tested with pressurized water flow to ensure build quality before being packed. It is normal to see a little water residue remaining in the membrane housing.
- Unwrap and insert the membrane into the housing and make sure the membrane is seated flush with the housing.
- Check that the membrane housing o-ring and housing cap o-ring are seated properly.
- Screw the cap back onto the housing, use the housing wrench to tighten the cap with another 1/4 to ½ turn of the wrench, do not over tighten as this can cause leaks and make future filter replacement difficult.
- Connect the push fitting back to the membrane housing cap.
Step 7 – Pre-filter Wash
Filters posted in front of the reverse osmosis membrane are called pre-filters. We recommend performing a pre-filter wash every time you install or replace pre-filters to prolong the RO membrane service life and maximize the system performance,
- Unscrew stage 1, 2, and 3 filter housings take out and unwrap all filters.
- Insert the filters back into their housings and ensure the housing o-rings are properly seated to prevent leaks.
- Twist the housings counterclockwise onto the housing caps. Use the housing wrench to tighten the housing with another quarter to half of a turn, do not over tighten as this can cause leaks and make future filter replacement difficult.
- Remove the locking clip and insert the red tubing from the feed water adapter to the system water inlet fitting and lock the tubing in place by inserting the locking clip.
- Remove the locking clip and remove the red tubing from the pre-filter water outlet.
- Insert the black tubing from the drain saddle to the pre-filter water outlet fitting to ensure all tubing is inserted ½ inch deep into the fittings to prevent leaks.
- Turn on the cold water supply valve and slowly turn on the feed water valve.
- Let the water fill and flush the pre-filters for at least 5 minutes, check and make sure that no leaks occur.
- Shut off the feed water valve the pre-filter wash is now complete.
Here is the link for youtube that you can watch, which really helps you to understand the installation of iSpring RCC7AK in detailed steps.
Step 8 – Installation Of Leak Stop Valve
RCC7 series comes with a leak stop valve that can automatically shut off the inlet water from entering the water system when it detects a leak, effectively protecting your home from water damage. The valve is highly sensitive to water. Install it with extra caution as the leak stop pad inside the valve will easily absorb water and expand thus it will need to be replaced every time it contacts with water,
- Find a dry and flat spot under the sink close to the system to place the leak stop valve
- Measure and cut the red tubing
- Connect the red tubing from the feed water valve to the leak stop valves inlet port.
- Connect the remaining red tubing from the system inlet to the leak stop valves outlet port.
- Please make sure all tubings are inserted 1/2 inch deep into the fittings.
- Please make sure the surface is completely dry to avoid system shutoff.
- Completely dry to avoid system shutoff system installation.
Step 9 – System Installation
- Remove the black tubing from the pre-filter water outlet fitting and be prepared to catch the excess water from the connection with a towel.
- Remove the locking clip on the wastewater port, connect the black tubing from the drain saddle to the system waste water port and lock the tubing in place by inserting the locking clip.
- Connect the red tubing back to the pre-filter water outlet fitting.
- Lock the tubing in place by inserting the locking clip.
- Connect the blue tubing from the drinking faucet to the final stage of your system.
- The final stage filter will be a post carbon filter if you have a five stage system and an alkaline filter a deionization filter or a uv filter if you have a 6 or 7 stage system.
- Connect the yellow tubing from the water storage tank valve to the post carbon filter’s T.
- Fitting locks the tubing in place by inserting the locking clip.
Step 10 – System Startup
- Make sure the tank valve is in the closed position and ensure no tubings are kinked.
- Turn on the feed water valve and check the connections for any leaks.
- Turn off the feed water valve and fix any leaks before moving on to the next step.
- Turn on the drinking faucet to purge out all air. the water will start to trickle within a few minutes.
- Let the water trickle for at least 10 minutes to drain out any residual materials from the membrane and filters.
- Shut off the drinking faucet and turn on the tank valve. The water storage tank will now fill up. The water storage tank usually takes 1 to 2 hours to fill depending on your water pressure and temperature.
- Do not use the first tank of water after the tank is full. We recommend draining out the tank twice before drinking any water. Turn on the drinking faucet to drain out the tank completely. When the tank is completely drained the stream of water will slow to a trickle.
- Shut off the drinking faucet to allow the tank to fill again for another 1 to 2 hours.
- Turn on the drinking faucet to completely drain out the tank again.
- Shut off the drinking faucet to allow the tank to fill again. Once the tank is full your system is ready for use.
Bottom Line – Ispring Reverse Osmosis
Congratulations!!! The iSpring reverse osmosis system installation is now complete and after just following these steps you can install your system without calling a plumber and enjoy clean and refreshing water from home. But still if you get stuck and need professional assistance you can contact your manufacturer’s tech team and read the user’s manual.