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How to install a Reverse Osmosis Water Filter

This tutorial explains the process of fitting  reverse osmosis system, including tips on how to drill through your sink and how to install the various components found in a RO System.

 

Pre Installation Notes

**Please note that this tutorial is written for systems that use ‘push fit’ fittings. With this type of fitting make sure that you push them in firmly to ensure that the tube has been pushed completely in, you should feel them slide into place if done correctly.

Firstly ensure you have a suitable site for the system, and make sure the system will fit in the chosen site. This will be somewhere with a cold standard sized copper mains water pipe and a nearby 35mm standard sized waste pipe –  (the type that sinks use for drainage as standard). Usually beneath the sink where the water filter tap will be mounted is the ideal place; however in situations where there is not enough room for the system itself beneath the sink it can be installed in a neighbouring cupboard and the pipes can be run through the side panel of the cupboard to where they need to go.

For pumped units ensure you also have an electrical plug socket nearby or run an extension lead to the cupboard as it will need to be plugged in the mains for the pump to operate.

 

Identifying the Components

With most Reverse Osmosis Water Filter Systems you will have some or all of the below components. This guide will explain how to fit all of these below:

RO water filter tap

RO Drinking Water Tap

Self Piercing saddle valve for reverse osmosis

Mains water Clamp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inline ball Valve 1/4 inch

In-line Ball Valve

Reverse Osmosis Drain Clamp

Reverse Osmosis Drain Clamp

 

 

 

 

 

 

 

 

 

 

 

 

Step 1 – Fitting the Mains Clamp

See the components images above to identify the Self Piercing Mains clamp.

  1. Firstly hand-turn the self piecing screw head on the top of the clamp until the piecing pin has completely retracted into the roof of the clamp and cannot be felt. – This is important or it will prematurely piece the pipe when securing the clamp.
  2. Find a suitable pipe for the clamp to latch onto; this should be a standard sized copper cold water mains pipe (such as the one that runs to the cold tap). Ensure that the pipe is the cold water pipe as the water filter system will not work with hot water.
  3. Put the clamp around the pipe and slide the metal cradle between the clamp and the pipe. For this the widest arch side of the cradle should be the side that is in contact with the pipe.
  4. Tighten the bolt at the bottom of the clamp with a spanner (not the top self piercing screw head) until it is tightly secured to the mains pipe.
  5. Push a short length of ¼” pipe into the push fit connector on the Self Piercing Mains clamp
  6. Attach a ¼ inline Valve (as seen in pic 2) onto the end of this short piece of pipe and ensure it is in the off position. This will be the shut off valve for the system if it is ever moved or needs servicing.
  7. Hand-turn the self piecing screw head on the top of the clamp until it will turn no further and has completely pierced the mains pipe.
  8. Opening the self piecing screw head on the top of the clamp, you will see the short length of pipe go stiff and the push fit socket on the clamp will drip, keep moving the pipe around until this stops (as outlined in the above note).

Note: at the last stage above (after opening the self piecing screw head on the top of the clamp) the clamp will always leak from the push fit connector socket on the clamp, this is normal, keep pushing and pulling the pipe where it goes into the clamp and moving it from side to side until it stops dripping. This is normal and it will stop dripping

 

Step 2 – Fitting the Waste Clamp (RO systems only)

See  the components sheet to identify the waste clamp

  1. Take the one sided sticky foam from the bag with the waste clamp in, take out the circular centre piece of the foam and stick it to the inside of the clamp half with the hole in so that the holes align.
  2. Put the clamp around the waste pipe on a straight section of the pipe (not a U-Bend) and tighten the bolts (the quickest way is to hold the nuts by hand and use a screwdriver on the bolts), ensure that the hole for the push fit connector is in an accessible position for drilling through the push fit hole and into the waste pipe
  3. Find a drill piece that will fit through the push fit connector socket on the waste clamp, and drill through it into the waste pipe.
  4. If the push fit connector falls out of the socket, or the rubber gasket inside it falls out of the socket while drilling ensure that they are put back in place inside the push fit connector socket, otherwise it may leak later when the water filter system is running.

 

Step 3 – Fitting the Tap

See the components sheet to identify the Drinking Water Tap

Note: if you have a 3 Way Tap you can skip this step
  1. Find a suitable place for the tap to be mounted; usually they will fit on the corner of a sink. You will need to ensure that where the tap is mounted there will be enough room underneath the sink for you to use a box spanner to tighten the bolt on the taps screw stem to secure it to the sink itself
  2. Alternatively, if there is not enough room to mount the tap to the sink you can drill through the worktop itself by the edge of the sink, again ensuring there is enough room underneath to tighten the taps bolt.

 Note: if you have a granite worktop and need to drill through it as you cannot fit the tap onto the sink you will need to use specialist drill pieces and techniques for granite drilling. Alternatively you may wish to replace your normal hot/cold tap with a 3 way tap

Note: if your sink is not metal (i.e. is made of a china type material) then do not drill through it (it may crack)

Tips for drilling the hole on a sink: use metal drill bits and begin with a small one (about 2mm) and build up the hole using drill bits increasing in size by 1mm each time. You should finish by using a 12mm drill bit, drill the hole and carefully widen it a little by moving the drill around until the stem for the tap will fit into the hole.

  1. Put the smallest rubber gasket that comes with the tap onto the sink top hole, and put the tap stem through this.
  2. On the underside of the sink, first put the larger rubber gasket and then the metal one around the screw stem of the tap
  3. Put the bolt on the screw stem and tighten the bolt until the tap is securely fixed in the desired position/angle on the sink.
  4. Then push a piece of ¼” pipe into the push-fit fitting inside the bottom part of the taps screw stem

 

Step 4 – Connecting the System

  1. Attach a piece of ¼” pipe to the ¼” inline Valve that comes from the mains water clamp which was fitted in step 1. Cut to a suitable length and attach the other end to the rear of the system to the push-fit connector labelled “FEED WATER”.
  2. Attach a piece of ¼” pipe to the push-fit connector on the waste clamp. Cut to a suitable length and attach the other end to the rear of the system push-fit connector labelled “DRAIN WATER”
  3. Attach a piece of ¼” pipe from the push-fit connector on the tap stem to the rear of the system push-fit connector labelled “FAUCET”

Connecting the Tank – (if your Reverse Osmosis Water Filter System does use a tank)– Wrap lots of PTFE tape around the screw thread on the top of the tank and screw on the tank valve. Lots of PTFE tape should make this tight to screw on and is essential to prevent leaks from the tank valve.

Connect a Length of ¼” water pipe from the ‘Storage Tank’ socket on the system to the tank valve, turn tank valve in ON position.

  1. Once all connections have been made, turn on the ¼” inline valve from the mains clamp, as well as the valves on the back of the system (“FAUCET” and “FEED WATER” valves)
  2. If the unit has a pump, plug in the power lead and turn on the socket.

Make sure the tap is turned off. Leave for 1hr and then turn on tap until tank is completely drained (until the water flow is a dribble). Repeat 3 times then the water is ready for drinking.

Thank you for reading How to Install a Reverse Osmosis Water Filter

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October 6, 2011 at 9:48 am Comment (1)

How to fit a water filter

 

Water Filter Installation Instructions

under sink water filter kit

 

This tutorial explains how to fit a basic under sink water filter kit 

 

General Notes

**Please note that if your fittings are ‘push fit’ fittings make sure that you push any tube in completely and firmly, you should feel them slide into place if done correctly.

Firstly ensure you have a suitable site for the system, and make sure the system will fit in the chosen site. This will be somewhere with a cold standard sized copper mains water. Usually beneath the sink where the water filter tap will go is the ideal place; however in situations where there is not enough room for the system itself beneath the sink the system can be installed in a neighbouring cupboard and the pipes can be run through the side panel of the cupboard to where they need to go.

 

 

Step 1 – Fitting the Mains Clamp (Push fit clamp)

  1. Firstly hand-turn the self piecing screw head on the top of the clamp until the piecing pin has completely retracted into the roof of the clamp and cannot be felt. – This is important or it will prematurely piece the pipe when securing the clamp.
  2. Find a suitable pipe for the clamp to latch onto; this should be a standard sized copper cold water mains pipe (such as the one that runs to the cold tap). Ensure that the pipe is the cold water pipe as the water filter system will not work with hot water.
  3. Put the clamp around the pipe and slide the metal cradle between the clamp and the pipe. For 15mm Pipe the widest arch side of the cradle should be the side that is in contact with the pipe.
  4. Tighten the bolt at the bottom of the clamp with a spanner (not the top self piercing screw head) until it is tightly secured to the mains pipe.
  5. Push a short length of ¼” pipe into the push fit connector on the Self Piercing Mains clamp

At this stage leave the clamp as is until the rest of the system is connected. When connected Hand-turn the self piecing screw head on the top of the clamp until it will turn no further and has completely pierced the mains pipe, then turn back so it opens the valve.

Note: If you are using a push-fit clamp then the clamp will always leak from the push fit connector socket when the valve is first opened, this is normal, keep pushing and pulling the pipe where it goes into the clamp and moving it from side to side until it stops dripping. This is normal and it will stop dripping after being pushed and pulled as described.

 

Step 2 – Fitting the Tap

Note: if you have a 3 Way Tap you can skip this step

Note: if you have a granite worktop and need to drill through it as you cannot fit the tap onto the sink you will need to use specialist drill pieces and techniques for granite drilling. Alternatively you may wish to replace your normal hot/cold tap with a tri-flow tap

  1. Find a suitable place for the tap to be mounted; usually they will fit on the corner of a sink. You will need to ensure that where the tap is mounted there will be enough room underneath the sink for you to use a box spanner / other spanner to tighten the bolt on the taps screw stem to secure it to the sink.
  2. Alternatively, if there is not enough room to mount the tap to the sink you can drill through the worktop by the edge of the sink, again ensuring there is enough room underneath to tighten the taps bolt

 

Tips for drilling the hole on a sink:

  1. use metal drill bits and begin with a small one (about 2mm) and build up the hole using drill bits increasing in size by 1mm each time. You should finish by using a 12mm drill bit, drill the hole and carefully widen it a little by moving the drill around until the stem for the tap will fit into the hole.
  2. Put the smallest rubber gasket that comes with the tap onto the sink top hole, and put the tap stem through this.
  3. On the underside of the sink, first put the larger rubber gasket and then the metal one around the screw stem of the tap
  4. Put the bolt on the screw stem and tighten the bolt until the tap is securely fixed in the desired position/angle on the sink.
  5. Then push a piece of ¼” pipe into the push-fit fitting inside the bottom part of the taps screw stem

 

Step 3 – Fitting the Water Filter Cartridge

  1. Find a suitable place to fit the clamp which will hold the filter, and screw it in place so that it is secure.
  2. Connect the ¼” water pipe from the Mains Clamp to the Filter Cartridge to the correct end of the Cartridge (there is a flow direction marker on the Filter)
  3. Connect the ¼” water pipe to the other end of the Filter and connect this to the tap
  4. Ensure all pipes are pushed in fully and open the Mains Clamp Valve
  5. Flush 5 minutes of constant flowing water through before drinking

 

Thank you for reading our tutorial on how to fit a water filter tap

 

Disclaimer

The information contained within this document should not be considered as professional repair or installation advice. Water Filter Man Ltd is not responsible nor liable for any plumbing work done on your behalf, any suggestions of procedures are listed purely for informational purposes only. If in doubt consult a professional plumber.

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October 4, 2011 at 9:04 am Comments (6)

How to change a fridge filter

Fridge Filter Installation Instructions

 

This guide will describe how to change a fridge filter on american fridges which use an external in-line water filter cartridge.

Note: This guide is for the newer type of filters which use push fittings built into the cartridge. This may be different to you old existing filter which may have screw stem fittings. If this is the case all you need to do is cut the pipe before and after your existing filter to completely cut it out (follow installation steps below). This new type of filter does not need these fittings since it has push fittings built in.

*important note on push fittings* ensure the pipe is completely smooth and free from burrs around the ends where it will be pushed inside the new cartridge, otherwise slow leaks may occur, if pipe is not smooth cut out the burred bits until a smooth section is present.

 

 

Installation Steps

*Firstly please remove the blue sealer fittings from either end of the new cartridge (if present, if not continue to step 1) – check by looking in the hole at either end that the blue sealers have not been pushed into the cartridge during transit, if so please carefully remove them, they can just be pulled out.

1. Turn off the water supply to your fridge.

2. Release pressure from the fridge by drawing some water from its dispenser.

3. Put a bowl underneath your old filter to catch any water, and remove the pipe from your old filter / cut the pipe before and after the cartridge if it has screw fittings.

4. Push the tubing from the feed into the new cartridge in direction with the flow arrow imprinted on the cartridge. Direction is: FEED>CARTRIDGE>FRIDGE. Make sure the pipe is pushed firmly into the cartridge and is

gripped, if done correctly you can usually feel it slide into place.

5. Before connecting the filter to the fridge, hold the new filter over the bowl and open the inlet valve. Let water run through the filter for 5 minutes constant flow to flush out the carbon fines from the new fridge filter.

6. Once flushed, turn off the valve, and connect the other end of the filter cartridge to the fridge, and open the valve again.

7. Check for any immediate leaks, if any are present ensure the pipe is firmly pushed in the push fittings and that the pipe is smooth and free from burrs. Then double check again after several hours to ensure there are no slow leaks.

8. Be sure to check out www.waterfilterman.co.uk for your replacement filters.

 

Thank you for reading our guide on how to change a fridge filter

 

Disclaimer

The information contained within this document should not be considered as professional repair or installation advice. Water Filter Man Ltd is neither responsible nor liable for any plumbing work done on your behalf; any suggestions of procedures are listed purely for informational purposes only.

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October 2, 2011 at 10:43 pm Comments (4)