16. How it Works
Water is pumped into the
filter from the pool hose, it falls down to the bottom of the barrel and
is forced back up through the gravel and over flows back into the pond.

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17. Clean you filter
After the first month you need to clean your new filter. Unplug your pump,
open the valve and drain the barrel. Using a water hose with a high pressure nozzle, wash
the gravel clean. Keep the drain open during this process. Mix the gravel completely, as
you wash it, note the drainage. When it runs clear close the valve and turn pump back on.
If you clean your gravel once a month you should have clear water. Sometimes you may need
to drain and clean your filters more often, and sometimes less. Listen to your pond,
it will tell you. Generally speaking, on new ponds it takes a minimum of 6 weeks to
stabilize your pond. During this time, your water will look green and cloudy. Be patient,
it's part of the process. You should notice a lot of black "gunk" in your
filters when you clean them. That is a good sign, it means that the filter is working
perfectly!!
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18.
Pump Connection:
I have had many questions on how we connected our pump to more
than one filter. The diameter of the connections is
determined by the pump, and varies depending on how large or how
small your pump is. My pump uses 1 inch connections.
If you are connecting more
than two filters, simply add more PVC "Y's".

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