How to Change Candle in RO | Sediment Pre-Filter | Save Money | RO Filter | 

How to change candle in RO | Sediment Pre-Filter | Save Money | RO Filter |
Recommended Filter Change Schedule
Sediment Pre-Filter - Change every 6-12 months more often in areas with very high turbidity in water.
All RO systems require some periodic maintenance to ensure you are getting the same water quality as when the system was new. The most important maintenance for an RO membrane is on-time filter changes.
Preparation:
A. Be certain the proper filter cartridges are used for replacement. Use this link to find the correct filters for your RO system by selecting the correct brand and model of your system. If your RO system brand or model is not listed, or you are unable to determine your brand or model, please contact ESP Water Products Customer Support.
B. The filter cartridges should remain in their original packaging until they are ready to install in the reverse osmosis system.
C. The person performing the replacement service should wash their hands with soap and water prior to performing any of the service work to prevent the introduction of bacteria to the system.
D. An RO System Service Kit can help make replacing filters simpler and keep your system in peak performance.
Standard FILTER Replacement Instructions
Step 1. Turn off the feed water supply line valve to the reverse osmosis system.
Step 2. Close the ball valve on the RO storage tank. This is typically done by turning the blue ball valve on top of the tank a ¼ turn clockwise.
Step 3. If you have a line going to your refrigerator or ice maker from your RO system, turn off the ball valve on the line going to your ice maker.
Step 4. Open the RO faucet and allow the pressure in the system to bleed off.
Step 5. Place a shallow tray or pan under the filter housing to catch any water that may spill during the filter-changing process.
Step 6. Unscrew the vertical filter housings from the cap and remove the used filter cartridge. If you have trouble removing the filter housing, a special filter housing wrench may be needed.
Step 7. Carefully remove the O-rings and place them on a clean surface. Wipe the O-rings clean with a soft clean towel and visually inspect for any nicks cuts or abrasions that may cause the O-rings to improperly seat in the filter housing. If an O-ring appears damaged, replace the O-ring.
Step 8. Rinse out the disconnected filter housings using warm water and a small amount of liquid soap. Be certain that all soap is thoroughly rinsed out of the filter housing before inserting the new filter and reattaching it.
Step 9. Lightly lubricate the O-ring with a silicone lubricant. Insert the O-ring into the filter-housing O-ring groove. It is important to be sure the O-ring is properly seated in the groove as it provides the watertight seal between the filter housing and the filter housing cap.
Step 10. Measure the new filter to be sure it is the proper length. Remove the new filter from the plastic or paper packaging.
Step 11. Place the filter in the correct filter housing and carefully screw the filter housing back onto the cap of the filter housing, hand tightening only.
If your system includes an inline post-carbon filter (typically a small horizontal filter on top of the system) and/or the reverse osmosis membrane (typically the large horizontal filter on top) and you are also replacing these filters, please jump to the instructions for those filters below. If you are only replacing standard vertical filters, continue the following instructions to complete the filter change process:
Step 12. Turn the incoming water supply valve on and check the system for leaks.
Step 13. Turn on the reverse osmosis faucet. Within a couple minutes, you should get a small steady stream of water or a very fast drip, which means your new filters are working properly.
Step 14. Let several gallons run through the RO system and out the RO faucet with the storage tank valve still closed.
Step 15. Turn off the faucet and open the storage tank ball valve by turning the blue ball valve a ¼ turn counter-clockwise so that the blue handle is parallel with the tubing connected to the storage tank.
Step 16. If the storage tank is empty, it may take several hours for the tank to fill completely. You may hear water running while the tank is filling.
Step 17. If applicable, open the refrigerator or ice maker line, AFTER the tank is completely filled.
Step 18. Your system is now ready for use.
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