38
Revision date: 12.23.15
Maintenance: Flush In-Tank Standpipe
To prevent sediment buildup and
fluctuations in water quality, flush the in-
tank standpipe weekly.
Complete the steps that follow.
1. Turn off the water pump.
2. Attach a hose to the end of the drain
pipe (A) if desired. (Depending on
system size, there could over 30
gallons of water.) Close the in-line
valve (B).
3. Open the valve at the end of the
drain pipe (A). Water will be dirty and
contain sediment from inside tank and
pipes. Capture and reuse the water
for outdoor plants, or drain to waste.
4. Using a garden hose, flush the inside
of the standpipe by spraying clean
water down into the pipe.
ATTENTION:
Do not spray between
the standpipe and the siphon tube.
5. Once water runs clean from the
drain pipe, repeat the steps for each
remaining standpipe in each fish-
holding tank.
6. After cleaning, close the valve at the
end of the drain pipe (A) and open
valve B for all return lines leading to
the biofiltration tank or tanks.
7. Turn on the water pump and check
water flow at the biofiltration tank.
Drain Pipe
A
B
In-Tank Standpipe &
Siphon Tube
Spray clean water from a hose down and
into the
standpipe
to flush out sediment. Repeat this for all
fish-holding tanks.
ATTENTION:
Do not spray water between the
standpipe and the siphon tube.
Step 7
Standpipe
(inner)
Siphon
Tube
(outer)
