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OPERATION

PRE-OPERATION

1.  Make sure that all tubing connections are tightly secured.

2.  Verify that Collection Cup and Lid are tightly fastened and sealed  

to the Main Chamber.

3.  Unscrew Air Silencer Control Valves fully.

4.  Check Water-Level Adjustment Dial and make sure it is in the open  

position. (5.0)

INITIAL OPERATION

1.  Plug water pump into an outlet or power source.

2.   Adjust Water-Level Adjustment Dial so that the micro-bubbles are 

below the Collection Cup Cone. (5.1) 

Let the pump run for 24 - 72 

hours to “break-in” the unit. 

Use Water-Level Adjustment Dial for  

fine adjustment.

NOTE:

 Initial operation of protein skimmer may produce excess 

bubbles and waste. Allow Collection Cup to fill-up and discard 
waste-water until production decreases.

If unable to raise bubble height sufficiently using only the Water-
Level Adjustment Dial, screw both Air Silencer Control Valves to 
the closed position to increase water velocity OR raise water level 
in sump.

OPERATION

1.  Turn Water-Level Adjustment Dial to raise water level within the 

Main Chamber and Cone to desired skimming operation.

DRY SKIMMING OPERATION (5.2)

1.  Adjust micro-bubbles to .25" - .75" high inside Collection Cup Cone.

NOTE:

 Dry skimming will produce a dense foam layer which  

rises to the top of the Cone where it collects until the dry foam 
overflows into the Collection Cup. 

RESULTS: 

1. Dry foam (froth) 
2. Dark, concentrated waste material (Less Volume)

WET SKIMMING OPERATION (5.3)

1.  Adjust micro-bubbles to .75" - 3" high inside Collection Cup Cone.

NOTE:

 Wet skimming will produce a thin bubble layer which  

rises to the Collection Cup Lid where it bursts and slides down the 
Collection C up as wet wastewater.

RESULTS:

 

1. Wet foam 
2. Light, diluted waste material (More Volume)

5

Turn Water-Level Adjustment Dial  
to adjust water level

Air Silencer 
Control Valves

Collection Cup

Dry Foam 

(Froth)

Collection Cup Cone

Micro Bubbles

Micro Bubbles

Waste Materials

TOP VIEW 

5.0

SIDE VIEW 

5.1

DRY SKIMMING 

5.2

WET SKIMMING 

5.3

Summary of Contents for 75G

Page 1: ...demark of Central Garden Pet Co 2011 Central Garden Pet Co Please read these instructions in their entirety before attempting to use this product Instructions for Models 75G 150G and 300G The pumps used with the Coralife 75G 150G and 300G Cone Skimmers are listed by Underwriters Laboratories to ensure that they meet the stringent U S and Canadian safety requirements ...

Page 2: ...by a GFI Ground Fault Interrupter circuit breaker 6 Make sure that the Cone Skimmer is securely installed before operating PRE INSTALLATION SETUP NOTE Prepare at least 5 gallons of make up water to replace water used by the Cone Skimmer SUMP HOOK UP PLACEMENT 1 Verify that there is adequate space for the Cone Skimmer in the sump 2 Confirm that sump is large enough to hold additional water from ski...

Page 3: ...3 ...

Page 4: ...water or obstruct airway passage through Air Inlet Silencer 4 Attach Output Tubing onto Water Output with vent hole facing up 4 1 5 Place Round Diffuser Sponge into Sump 4 2 4 Collection Cup Assembly Water Output Main Chamber Water level Adjustment Dial Air Inlet Silencer Venturi Air Inlet Outlet Standpipe Output Tubing Siphon Break Air Vent Hole Water Output Water Line Output Tubing Bubble Diffus...

Page 5: ...closed position to increase water velocity OR raise water level in sump OPERATION 1 Turn Water Level Adjustment Dial to raise water level within the Main Chamber and Cone to desired skimming operation DRY SKIMMING OPERATION 5 2 1 Adjust micro bubbles to 25 75 high inside Collection Cup Cone NOTE Dry skimming will produce a dense foam layer which rises to the top of the Cone where it collects until...

Page 6: ...components TROUBLESHOOTING NOTE Variables that affect skimming to produce dry or wet foam are a New Fish or Invertebrates b Frequent Feeding c Change in Water Chemistry d Supplements and Medication e Water Quality f Water Fluctuations Evaporation g Addition of Make up Water h Water Changes i Maintenance j Inserting hands in the tank 1 No microbubbles produced inside the skimmer a The Air Inlet Sil...

Page 7: ... than the Company 3 Transfer of product to someone other than the original consumer or purchaser WHAT YOU MUST DO TO ENFORCE WARRANTY Contact the Company by telephone 888 255 4527 Contact the Company by email info central aquatics com Or contact the Company by writing Central Aquatics 5401 West Oakwood Park Drive Franklin WI 53132 Attn Warranty You must pay any postage shipping charges insurance c...

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