Under Sink Water Filter: Installation Guidelines

After Macquarie University researchers found high-levels of lead in drinking water in North-East Tasmania, Australia and the horrific drinking water recently exposed in Flint Michigan you really begin to question the safety of our drinking water. Lead leeching seems to be the leading cause of concern in Westernized countries however,  according to estimates, there are around 2100 contaminants in drinking water. From catchments to taps, a number of contaminants can remain in the water. The only way to ensure you are drinking pure water is using a water filter system, one of which is the under sink water filter.

Types of water filters

There are four types of water filters, which include jug i.e Brita, tap-mounted or faucet water filter, counter-top and the under sink water filter. Jug water filters are convenient to use since they are small, but they should be replaced every few weeks. Tap-mounted filters can be a little tricky because not all are compatible with every tap. Counter-top filters are expensive, can be unsightly and they take up too much space. An under sink water filter is easy to install, space saving and are less likely to clog than jug and tap-mounted filters. All filters with replaceable filter media can become clogged if the filters aren’t maintained.

You can choose a water filter depending on the filter media, as well. You can opt for filtration, softeners, UV-treatment, reverse osmosis and distillation. Even though an under-sink reverse osmosis filter uses more energy than a jug filter, for example, it removes the widest range of contaminants.

Here’s a guide to installing an under sink water filter:

Step 1

Turn off the water at angle stops under the sink. Using a wrench, you need to disconnect the supply tube on the cold water side of the system. You can do it by loosening the nut of the water line and removing the tubing from the valve.

Step 2

When you have dissembled the cold water line, you should mark the location for the under sink water filter. Locate the filter closest to the water line. Mark the position of the filter by looking at the holes in the mounting bracket. Drive screws halfway through the holes in order to see whether you have enough space for changing the cartridge in the filter. You will tighten them completely in the finishing step, for now dismount the filter when you choose the right position. Consider using drywell screws since they are easy to handle.

Step 3

Now, you need to make the plumbing connections. Instead of the plastic tubing usually found in the kit, you can use stainless-steel supply lines because they are much sturdier and not as apt to kink. They can be found at any hardware store and are definitely worth the additional money. They come in various lengths, so make sure you choose the right ones for your connection type. First, install brass fittings found in the kit into the each side of the filter. You can tighten them with a wrench and you can use Teflon tape. Teflon tape can prevent leaks when you come to the step 5. Do not over-tighten them. Thread one supply line onto the brass fitting marked “in” and install the second one onto the fitting marked “out”.

Step 4

Hang the filter on the wall and tighten the screws completely. Find the supply line from the “in” fitting andunder sink water filter connect it to the shut-off valve. The supply line connected to the “out” fitting should be tightened to the tap system.

Step 5

Turn the water at the shut-off valve. Find a pressure-relief button to release trapped air. Check for leaks during the first hours of use.

As you can see, installing an under sink water filter shouldn’t take you more than half an hour. Yet, if you are having any difficulty during the installation, the best thing to do is to call a professional plumber.

 

Lillian Conners

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