How to change /install S.V in R.O system at home?

In the following article we will describe the procedure of Replacement/installation of S.V valve in RO system. For this, first of all, we should know about S.V valve, this is a solenoid valve which is a cybernetic operated valve. Solenoid valves is varied  in the features of the electric current which is  used, the power of the magnetic field which is produced, the device they use to adjust the fluid, and the variety and features of fluid which is regulated by them.

The procedure of replacing/installing of S.V in RO purifiers are following described below:

First, get a new unit and arrange and top it up beforehand to save time. Now, disconnect the water connection of the tap’s water and out the power plug as well. Although this does not cause any problem but it would be better if the connection is disconnected.

Then, after opening all the taps of RO, separate the wires and after that we have to off the wiring of our old S.V, then remove the pipe of S.V and check whether it is fine or not. Now after checking it comes out that our old S.V is bad as it is not working properly.

Now, in every new S.V we have to check before using it in RO. Other mentioned marks are given in and out but in some cases aero mark is also given till it means left and right of S.V. side is On the right side, aero means that the symbol is in the right direction (on the left side), it means that the pipe that is heated by inline filter is in the right direction. Installed so that there is no problem of any kind of leakage and secondly, attach the pipe provided from the booster pump properly to the outside mark and then do its wiring. The easiest way to do the wiring is that there are two types of wires in RO in which one wire is positive and the other wire is white or black and if it is negative then here we have to connect the positive wire to the positive and do it carefully. This is so that the wiring goes well and then taping it in the right way so that there is no problem due to taping. The wires are protected from correctly topping and there is no leakage of any kind.

Now, first of all connect the tap water and then plug in the power of RO and switch it on to check whether the S.V in RO is working properly or not. Then RO starts running because due to S.V deterioration there is no water supply in it till then dirty water starts coming out from it because RO is not working for a long time then you wait for clean water to come out now pure water also starts coming out will commence. Thus, the installation of S.V. in RO system is done.

Conclusion: here are the short summary of the procedure of above described article:

• Preparation to replacement/Installation:
• Protection Preference:  first of all, unlink to the power supply of the RO system and switch off the water supply at the precise valve.
• Arrangement of materials and tools:
• Take a New solenoid valve (which is united with your RO system)
• Also Wrench or Pliers for loosening fittings
• Screwdriver (whether it is essential).
• The Teflon tape or thread sealant
• Bucket or cloth to catch water spills
• You can also take support of the owner manual: See appropriate instructions for the RO system, because there can be differences in valve connection and placement.
• Old S.V’s searching and elimination:
• S.V identification: It is usually a small, cylindrical valve with the two water lines aligned, frequently situated near the RO membrane housing.
• Attachments Loosening: Strictly, use pliers or a wrench for opening the attachments on the water lines which is linked to the S.V.
• Unscrew the S.V.: If it’s threaded into housing, gently unscrew it.
• Residual water draining: Allow any persisted water in the lines for draining into a bucket or cloth.
• New S.V Installation:
• Thread sealant: Put in Teflon tape or thread sealant to the threads of the new S.V. to ensure a watertight seal.
• Screw in the S.V.: Carefully screw the new S.V. into the housing or fitting, ensuring it’s properly aligned and tightened.
• Water lines Attachments: Reconnect the water lines to the S.V., ensuring they are securely tightened.
• Restore power and water:  Turn on the water supply: Open the main water valve.
• Leakages Test: Check all connections for leaks. Whether you find any, tighten the fittings or reapply sealant.
• Power Reconnection: Plug in the RO system again into the outlet of power.
• System inspection:
• Inspect the operation of the RO system: Switch on the faucet and let the system run some minutes to flush out any air bubbles and ensure proper operation.
• Check the flow of water: Inspect that clean water is flowing from the RO faucet at a normal rate.

Some Extra Tips:

• Whether it is not easy with DIY repairs, it’s fine to call a qualified technician.
• Take photos or notes during the process to aid in reassembly if required.
• Keep the old S.V. for a reference for part numbers or troubleshooting.
• Think about using a water leak detector to help identify any potential leaks.