7800 Carbon Filter Installation & Startup Guide
Page 11
www.cleanwaterstore.com
Rev 120215
25.
Programming Complete
– If you need to go back and change anything, simply press and hold
the Settings button to go through the programming menu again.
Starting the Initial Backwash
26.
Now you are ready to turn on the water. Turn on the water and leave the Carbon filter on
bypass and check for leaks. Leave the ball valve after the Carbon filter closed, so water is still off
to the house, but connect a garden hose and open up the hose bib after the Carbon filter and
allow the water to run for several minutes. This important step clears out any foreign material
that may be in pipes from the installation. If you do not have a valve and hose bib installed after
the Carbon filter, you will need to turn the water on inside the house to let the water run. Use a
bathtub or laundry sink or other fixture that does not have an aerator screen.
27.
Press and hold the Manual Regen button for three seconds which will start a manual backwash,
watch the display and wait until it starts counting down. Now unplug the power supply and
proceed to step 28.
28.
Now you can slowly turn the bypass valve to the service position.
You do NOT remove the red
clips on the bypass knobs in order to turn the bypass valves from the bypass to the service
position.
First open the Inlet Side of the bypass valve. Second slowly open the Outlet Side of the
bypass until it is in the full service position. The 7800 bypass valve knobs are a little stiff, so you
can use Allen wrench placed in the holes to turn the knobs. Turn the bypass valve knobs in the
correct direction which is counter-clockwise as you face the bypass valve knobs.
29.
There should be no Carbon media coming out of the drain line, but the water will be black or
dirty looking. At this point the Carbon filter will be in a backwash cycle. The backwash takes 10
minutes. If the water slows down or stops during the first 10 minutes of backwash, press the
Manual Regen button to move the 7800 control to the next cycle, the Rinse cycle. Then repeat
the backwash and rinse after the rinse cycle is done, by pressing and holding the Manual Regen
button for three seconds again. If you have high water pressure you may need to turn on the
water slowly to the Carbon filter at first to prevent some Carbon fines from coming out the
backwash. However it is normal for some small amount of fines to come out during the
backwash, although you do not want to see a large amount of media coming out, which would
mean you have very high water pressure, or the drain flow control for the 7800 is missing.
30.
If possible verify that the backwash flow rate. You can easily run the drain hose to a bucket and
using a watch verify the flow rate in gallons per minute. For example, if the backwash fills a 5
gallon bucket in 30 seconds, you have 10 gallons per minute or 10 GPM.
An adequate
backwash is critical to properly clean the Carbon media and prevent it from cementing
together.
1.0 Cubic Foot Model: 5 GPM recommended
1.5 Cubic Foot Model: 5 GPM recommended
2.0 Cubic Foot Model: 7 GPM recommended
