How to Install an RO Water Filter

With a growing concern about the quality of tap water used in households and workplaces alike, there is a rise in number of individuals and companies that are looking for a way to improve the quality of drinking water they use on daily basis. RO water filtering proved to be the most effective and at the same time the most convenient solution since it is fairly easy to install. These are the steps that will guide you through the entire installation process.

RO Water Filter

The Right Location

All RO water filter systems have more or less similar components and the vast majority can be installed under the sink. Another suitable location is the basement. In both instances, the most important consideration is whether the filter has a direct access to cold water line and drain and can it be easily reached when maintenance is needed. The pressure tank should be within 10 feet of the faucet. It can be fitted under the sink or in a cabinet if such aesthetics is preferred. The last considerations are that the RO water filter is as close to the cold water supply valve as possible.

Faucet Installation

Naturally, before you start any work make sure you close the cold water valve. If you are replacing an old faucet, make sure you check the number of holes it took to connect to the sink in order to pick a matching replacement or be prepared to cover the extra holes. All installation steps should be taken according to manufacturer’s installation guide to avoid any mistakes. Once the installation is completed use a plastic pipe to connect the inline carbon filter to the faucet. Open the cold water valve and check if everything is in perfect working order.

Drain Saddle Valve

A drain saddle makes a wastewater connection with under the sink drain and is designed to fit around the standard OD drainpipe. It should always be installed on vertical or horizontal drain and never near a garbage disposal in order not to clog the drain line. Drill a ¼” hole through one side of the pipe, position both halves of drain saddle in a manner that they align with the drilled hole and secure the clamp with nuts and bolts provided with the drain saddle valve. Make sure you do not over tighten and keep an equal space between the two halves, say Sydney-based suppliers of reverse osmosis water filters.

RO Unit Installation

The RO unit is usually installed on the right or left wall of the sink cabinet. The usual order of things is that the unit is installed on the front of the cabinet and the tank on the rear. It needs to be at least 2” elevated off the floor so make sure you mark the drilling spots before actually drilling any mounting holes. Do not over tighten the screws to allow mounting slots to slip over them and securely fit in.

Supply Tank Installation

The supply tank needs to be placed underneath the counter and within 10 feet of the RO unit. Use 5 to 6 wraps of thread seal tape around tank metal threads to additionally prevent leaks and drips. Use the appropriate type for the size of your threads. Connect the RO unit feed line directly to the tank. Allow the tank to prefill to check for any leaks or cracks. If everything is in perfect order, tighten the plastic shut off valve firmly but not too tight and remove the reducer. When the tank is filled, flush the water, refill it again and you are ready to use the system.

In order to make the best use of your RO water filtering system, regular maintenance is obligatory. Change the filter regularly every 6 to 12 months and check the membrane once a year and you will enjoy the full benefits the RO water filters provide.


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