How to Install a Reverse Osmosis Water Filter Part 3 How to Install a Reverse Osmosis Water Filter Part 3

Continue from part 2 on how to install a reverse osmosis water filter...

Step 8 – Install the Faucet

Mount the faucet supplying pure water on the kitchen sink such that the water falls in the sink. Check if there is an extra hole for mounting additional accessories in your kitchen sink. If so, replace the cap with the faucet. Faucets can even be positioned in the holes meant for the spray hose, by detaching the hose. When neither of them is available, drill a hole into the sink, or else on the countertop.

For stainless steel sinks, first punch a small hole where the faucet needs to be installed. Then using ½ inch twist bit, drill the hole into the sink. For ceramic tiles, carbide tipped bit is necessary. If drilling a hole on the countertop, a standard drill bit can be used for countertops of solid core. For a laminated countertop, a normal wood driller can be used. Mount and tighten the faucet into the hole.

Do not try to drill a hole through porcelain or a sink made of cast iron if you do not have enough experience in it. Seek professional help in such cases.

Step 9 – Install RO Membrane Filter

Follow the manufacturer’s instructions while making the connections. The cartridges from the pre-filter can be either suspended on the cabinet wall through screwed brackets or be allowed to rest on the floor. Position them in such that they are easily accessible. Connect the outlet of carbon post filter to the inlet of the Reverse Osmosis filter. Make the connections between the faucet, pre-filters, carbon post filter and RO membrane filter. Connect the drain-flow restrictor to the RO filter, and the output of the drain-flow restrictor must be connected to the drain.

Step 10 – Install the Storage Tank

Assemble the components of the storage tank. Make connections of the tubing between the filter output and storage tank. Also, connect the inlet saddle valve to the input of the RO filter. In case, you want additional connections like refrigerator, icemaker, second faucet, etc., just connect the compression tee before each fixture.

Step 11- Start the System

Turn on the supply of water. Check for water leaks if any. Shut off the storage tank valve and open the sink top faucet. Within fifteen minutes of turning on the water, one must hear a trickling sound. This is the sound from the system’s drainpipe due to the discharge of wastewater into it. In a few minutes, the water will begin to flow from the faucet. Let the water flow for around half an hour. This will help in flushing the carbon filters.

Close the faucet and open the storage tank valve. This lets the water into the storage tank, and the tank starts filling. The water storage tank is often contaminated with minor impurities while manufacturing. Hence the tank needs to be disinfected, as per the manufacturer's instructions, before use. Adding liquid bleach solution to the tank usually does this, and letting it remain for a while. Open the sink faucet and drain the water. The first tank of output water from the filter must not be used for drinking. Once the tank is empty, the system is ready for use.

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