What to look for after installation of classic 100 HOB protein skimmer

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Jan 01, 2017
Thomas Burke wrote
I purchased the Reef Octopus Classic 100-HOB. I installed this yesterday but the instructions are very minimal outside of assembly rinse place in tank and turn on.

How do I know where the intake should be(mine is about 1/4 inch from the surface in addition where should i place the output? again this is close to the surface(so the sponges dont float up off the output.

I left the silencer off the air intake.

I know the break in is about 3 weeks but is there anything i should be looking at during this break in period to ensure it is progressing correctly? During break in should the air intake be left completely open(no silencer on)?

In terms of water level outside of closing the air intake is there another way to adjust this?

The collection tube height off the water/bubbles how high should i set this? I dont want to set it too low and have it start collecting water and fill and overflow. at the same time i dont want it to be too high(if that causes issues).

I know once this is broken i can adjust to working properly and leave it(as all tanks are different) but how should it be set during the break in period to avoid issues?
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3 Answers
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Jan 03, 2017
Thomas Burke wrote
I currently ~56 hours into running seeing white fizz(similar to if you shake up a bottle of seltzer and open it up), no foam yet. Last night since there was so much fizz up top i collected alot of water in a very very light tan color. I moved the cup up as i am back to work today and didnt want it to overflow.

I just do not know what i am looking for in terms of yes it is broken in and working, no it is still breaking in, or it is not functioning properly.

In terms of the air intake during break in should it be fulling open/fully closed/partially open. The silencer has the 2 inputs one has the insert on teh other side does it matter which input the air tube connects to on the silencer? As far as the cap(adjuster goes) i dont seem to notice any changes whether it is off or if it is on and fully pushed in.
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Jan 03, 2017
Carlos agent wrote
The skimmer is brand new so it needs to break in. The micro bubbles are normal for a new skimmer and they will go away as the skimmer breaks in. The break in process can take up to 3 weeks depending on the system it is running on.

In terms of the intake, the intake degreaser cage should be full submerged just below the water surface.

In terms of the silencer, it does not matter which of the inserts you use. One should also remain open.

During break in, the skimmer cup should be placed at the highest point to minimize the change of overflowing.
Jun 07, 2017
David wrote
Once construction is complete and the skimmer is introduced into the tank, initial start up is the critical moment to set up right, the mounting / lock screw keeps the unit at the right water depth, the open end of the "T" piece should be open to air inside the tank and well above the water level on the classic 100 HOB skimmer, keep the silencer well above the height of the foam level and never below the tank water level to avoid a disaster should the pump stop. Now the unit is running everyone thinks the foam should immediately rise up the collector tube and slowly overflow into the collector cup from the getgo - wrong. The correct position of the collector cup base should be positioned where the foam starts, resist pushing it down further as an overflow will occur at some point within a couple of hours and start to overflow. Avoid this mistake, setting the base of the collector cup so foam is just entering the bottom of the tube no more than 1/2" is perfect. Now be patient and let the unit break in and start to do its job, approx 3 weeks until fatty molecules start to thicken the foam up that will push it up the tube into the collection cup, this approach avoids the undesirable overflow when unattended. Give it time and don't push it, it will deliver the anticipated all in good time.

For such a nice piece of equipment, shame on the manufacturers for not being a responsible manufacturer and failing their customers by not supplying a proper installation, operation and maintenance manual with their equipment. Shame Shame Shame on them.