Clarus Fusion Series - Aeration Chamber Cleaning

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P R E L I M I N A RY

AERATION CHAMBER CLEANING

1. Aeration

The aeration system must be ushed every maintenance

visit. There are two ushing methods: (A) Air ushing and (B)

Water ushing. Air ushing must be done every maintenance

visit. Water ushing may be done if there is a sign of

clogging in the aeration chamber (e.g. abnormal increase in

recirculation ow).

(A) Air ushing procedure:

• Make sure the blower is in the aeration mode.

• Make sure a check valve or backow preventer is present

for water ushing procedure.

• Close gray recirculation valve (2) all the way. (0%)

• Rotate blue aeration valve (1) back and forth from the 0%

to the 100% position several times to ush.

• Set valves (1) and (2) back to the appropriate positions.

(See Recirculation Flow Adjustment, pg. 10)

(B) Water ushing procedure: (See Figure 18)

• Make sure the blower is off.

• Close valve (2) all the way.

• Connect a water line to the aeration line as shown in

Figure 18.

• Gradually open the water faucet and introduce water

into the system.

• Rotate valve (1) back and forth from the 0% to the 100%

position several times to ush.

• Turn off the water, remove the water line, and reconnect

the air line to the blower.

• Set valves (1) and (2) back to the appropriate positions.

(See Recirculation Flow Adjustment, pg. 10)

• Make sure the blower is in the aeration mode. If not,

change the mode by pressing the Manual Backwash

button.

• Open the gray recirculation valve (2) to 100%.

• Flush water through the recirculation line for several

seconds.

• Turn off the recirculation by rotating the gray valve

(2) to 0%.

• Make sure the blower is off. Allow the system to

relax for a few seconds.

• Repeat this cleaning method three times.

• A hose or brush can also be used to clean the recirculation

line. See Figure 20.

• Reset the gray valve (2) to its original position.

2. Backwash

The backwash system must be ushed every maintenance.

There are two ushing methods: (A) Air ushing and

(B) Water ushing. Air ushing must be done every

maintenance visit. Water ushing must be done if there is

a sign of clogging in the aeration chamber (e.g. abnormal

increase in recirculation ow).

(A) Air ushing procedure:

• Make sure the blower is in the backwash mode.

• Close the gray sludge transfer valve (4) all the way.

• Rotate the red backwash valve (3) back and forth from the

0% to the 100% position several times to ush.

• Set valves (3) and (4) back to the appropriate positions.

(See Backwash System)

100

MCL

SUGGESTED

RANGE

RECIRCULATION OR BACKWASH PIPE

CONTAINER

G.L

WATER

TO TREATMENT UNIT

FAUCET

BACKFLOW PREVENTER

HOSE

BLOWER

CLAMP

EXISTING AIR LINE

BRUSH

Figure 18

(B) Water ushing procedure:

(See Fig. 19)

• Make sure the blower is off.

• Close valve (4) all the way.

• Connect a water line to the backwash

airline as shown in Figure 18.

• Gradually open the water faucet and

introduce water into the system.

• Rotate valve (3) back and forth from

the 0% to the 100% position several

times to ush.

• Turn off the water, remove the water line, and reconnect the

airline to the blower.

• Set valves (3) and (4) back to the appropriate positions. (See

Backwash System)

• Make sure that the blower is in the backwash mode. If

not change the mode by pressing Manual Backwash.

• Open the gray sludge transfer valve (4) to 100%.

• Flush water through the sludge transfer line for a few

seconds.

• Repeat this cleaning method three times.

• A hose or brush can also be used to clean the sludge

transfer line. See Figure 20.

• Reset the gray valve (4) to its original position.

• Return the blower to the normal aeration mode. by

pressing Manual Backwash.

3. Foam formation

Make sure there is not an excess amount of foam on the

surface. If excessive foam is present it may indicate high

detergent usage. Meet with owners to inform and educate

them concerning excessive use.

4. Abnormal water level

If the water level exceeds the partition wall, clean the plastic

cage rst with a brush, then check for possible clogging in the

lter media section. Clogs may be cleared by using a manual

backwash tool. The manual backwash tool may also be used

to eliminate a clog in the anaerobic chamber media as well.

Figure 19

100

MCL