Under Sink Water Filter Installation is not difficult at all – we promise. Chances are good that even without any previous plumbing experience you can do all the DIY style. So hopefully spending any money to call a plumber will not be necessary.
But even if you hire a professional, he shouldn’t need more than 30 minutes to prepare everything, so the costs must be reasonable.
Now the level of difficulty depends on the type of system you have purchased. Many single-stage units feature an in-line design, which means they connect directly to your existing sink faucet – it doesn’t get much easier than that.
How To Do Under Sink Water Filter Installation
Most multistage systems, however, come with an additional wrench that may require you to drill a few holes. This depends on whether or not there is a second hole in your sink or counter that is ready to accept an additional faucet. There is?
But first things first. What are the tools you will need for Under Sink Water Filter Installation ?
- Screwdriver
- Adjustable wrench
- Variable speed drill (only for dedicated tap)
- 1/2 ″ drill bit (only for special taps)
- Utility knife
- Teflon tape
- water faucet installation
- Find the right point
The great thing about most under-sink water purification systems is that they’re compact and small, so you can easily place them in a cabinet under your kitchen sink.
The important thing is that there is a cold water line that is easily accessible. Hot water will damage your filters, so you should stay away from them! You must also ensure that you have sufficient water pressure to ensure optimum filtration performance.
Installing Under Sink Water Filter
Note that you should always refer to the instruction manual provided by the manufacturer.
- To install a direct connect system, follow these instructions precisely:
- Turn off the cold water supply under your kitchen sink.
- Disconnect the main key.
Connect the inlet hose of your preassembled system to the water supply valve. Then connect the outlet hose to the faucet. Apply a couple of Teflon tape wraps if necessary.
If necessary, tighten the fasteners with a spanner. If there are quick connect connectors, push the hose in and gently pull back to make sure the connection is secure.
- Secure the system under the sink with screws.
- Slowly turn on the cold water supply.
- Check for leaks!
Rinse the filter (or filters) according to the manufacturer’s instructions before you start using the water.Done!
- To install a system under the sink that uses a dedicated wrench, follow these instructions precisely:
- Turn off the cold water supply under your kitchen sink.
- Disconnect the main key.
Install a T valve on the cold water line. Please note: You may need to use an additional adapter. Apply a couple of Teflon tape wraps if necessary.
Drill a hole for the additional dispenser if necessary. There may already be a spare hole covered by a chrome cover or in case you don’t use the spray hose you can remove it and mount the dispenser there.
Mount the dispenser.
Connect the inlet hose of your assembled system to the cold water supply. Then connect the outlet hose to the new faucet.
If necessary, tighten the fasteners with a spanner. If there are quick connect connectors, push the hose in and gently pull back to make sure the connection is secure.
- Secure the system under the sink with screws.
- Slowly turn on the cold-water supply.
- Check for leaks!
Rinse the filter (or filters) according to the manufacturer’s instructions before you start using the water.Done!
Additionally, many manufacturers offer their own installation videos on their websites, which is another great resource.
How to Replace a Water Filter Cartridge Under the Sink
Even if you choose to call a professional plumber to do the installation for you, once your meter system is connected, you should be able to maintain it all by yourself. All you need to do is replace the filters from time to time.
How often? There is no general rule for this, as it depends on the individual filtering capabilities. It could be up to twice a year or only once every 3 years. So it is important that you always follow the manufacturer’s instructions.
Filter Replacement: Step-by-Step Instructions
To replace a filter here is what you need to do:
- Turn off the cold water supply under your kitchen sink.
- Drain all remaining water from inside the system by opening the faucet.
- If your system has filter housings, unscrew them with a filter wrench. Keep a bucket on hand to prevent water from spilling all over the place.
- Remove the old filter cartridge.
- Clean the case if necessary.
- Insert a new cartridge.
Check that the rubber o-ring is still in place and screw the housing back on. Tighten carefully.
- Reconnect the cold water supply.
- Check for leaks!
Rinse the filter (or filters) according to the manufacturer’s instructions before you start using the water.Done!
If your system has a rotary on / off design, you can replace the filters without tools and without having to cut the cold water supply at all. Simply remove the old filter by turning it a quarter of a turn. Then it turns into a new one.
