Periodic descaling may be necessary in areas where the water supply is highly mineralized. Scale build up in the AquaTru Pump and the Reverse Osmosis filter may result in reduced flow rates or in some cases a complete loss of flow.
It is important that these steps are taken before a complete loss of flow. Descaling an AquaTru unit with no flow may not be successful. Using an AquaTru with very low flow rate might permanently damage the pump.
When should descaling maintenance be performed?
Depending on the mineral content of your water, a new AquaTru should filter one tank of tap water in about 10 to 15 minutes. As soon as you notice that it takes twice as long to filter a tank of water you need to descale AquaTru (if it takes half an hour to filter a tank of water you definitely need to do this maintenance).
(!) It is important that maintenance be done as soon as you notice a reduced flow rate. Failure to do so may result in the complete failure of AquaTru since operating AquaTru with very low flow rate may permanently damage the pump.
DESCALING KIT PROCEDURE
What you need to get started:
- Set aside 1 gallon of purified AquaTru water (or any reverse osmosis or distilled water).
- 2 AquaTru Descaling Powder Packets
- 3 AquaTru Twist-in Descaling Filters
- Teakettle or pot for warming water
(!) Always make sure to use AquaTru’s Descaling Filters for this descaling process. If you keep your AquaTru filters in during this process, you will significantly decrease the filter life in your filters.
Note: If your filtering time remains at 30 minutes or more after completing this process, you will need to replace your RO Filter. You should not need to replace your RO filter with regular maintenance.
- Before starting this descaling process, make sure that the tap tank is clean and free of any hard water deposit. It is important to keep the tap tank clean and free of any deposits. Deposits in the tank can come loose as small flakes that block the pump. We recommend that you thoroughly clean the tap water tank once a week. For easy removal of stuck on deposits, soak your tank in a solution of 1 packet of AquaTru Descaling Powder and warm water until deposits have dissolved and your tank can be wiped and washed clean.
Heat purified water to around 80 to 120-degrees F (similar to hot water from the tap). Fill the tap tank to about ½ inch below the handle. Do not use boiling water.
Add two packages of AquaTru Descaling Powder to the water. Stir for 30 seconds to fully dissolve the powder in the water.
Remove the filter cover from your AquaTru. Wait 60 seconds for the filters to depressurize, then remove each of the 3 filters from the unit and install the 3 AquaTru descaling filters from the descaling kit.
Place the tap tank on the AquaTru base and let it start filtering. After about 5 minutes of filtering, turn off the power and let it sit and soak for 15 minutes. After 15 minutes, turn it back on and let it complete filtering the descaling solution until you see a solid blue circle at the top of the digital display.
Pour all the water from the clean water tank back into the tap tank and filter one more tank with the descaling solution through the machine without stopping the filtering process. For regular maintenance and to prolong the life of the RO filter we recommend that you do this once a month.
Filter two full tanks of regular cold tap water through AquaTru and discard the water. Clean both AquaTru tanks with soap and water before using the AquaTru again.
Reinstall the old filters and get purifying!
Helpful Hint: For units with heavy scaling, we suggest you repeat steps 4 and 5, reusing the descaling solution in the clean tanks.
(!) It is possible that AquaTru might stop filtering every 2 to 3 minutes during the descaling process. This is completely normal and may occur because AquaTru is designed to detect the resistance causes by the high-pressure pump pushing water through the fine reverse osmosis membrane. When the resistance is removed, AquaTru can sometimes automatically turn off to protect the pump. If this happens, simply power the unit off and then back onto get the pump to restart and continue pumping.
Other steps to prolong the life of the RO filter if you have hard water:
Don’t let AquaTru sit for more than 48 hours with hard water in the tap water tank. If you are going to let AquaTru sit for more than 48 hours without using it, run a tank of purified water through AquaTru, and let sit with purified water in it.
(!) Always make sure to empty and refill the tap water after each tank of tap water is filtered. The water in the tap tank is highly concentrated wastewater. When your tap tank needs to be emptied, the full blue circle illuminates on the top of the digital display panel. This product care step will help increase the time between scaling.