Leftover rubber after cleaning nyos quantum 120 & nectar s2

[Zoa.Mania]

Hi everyone

I cleaned my NYOS quantum 120 skimmer and VECTRA S2

After I was done assembling them back I noticed this leftover rubber

Does anyone know where it belongs?

 

[Natural_Reefer]

I could be wrong but remember seeing something similar on my Quantum 220.
It sits under the bubble plate and I think it is there to prevent over tightening of the plate.

 

[s70]

Hi everyone

I cleaned my NYOS quantum 120 skimmer and VECTRA S2

After I was done assembling them back I noticed this leftover rubber

Does anyone know where it belongs?

I'm cleaning mine today. There is algae in the control tube.
How did you get the tube out? I'm afraid to pull too hard and it is stuck on a some sort of seal.

 

[Zoa.Mania]

I could be wrong but remember seeing something similar on my Quantum 220.
It sits under the bubble plate and I think it is there to prevent over tightening of the plate.

I tried it but i don’t think so because it seems that the top part has a unique base and sits perfectly on the bottom part.

I'm cleaning mine today. There is algae in the control tube.
How did you get the tube out? I'm afraid to pull too hard and it is stuck on a some sort of seal.

What control tube? Can you take a picture or mark it on a photo

 

[Zoa.Mania]

I could be wrong but remember seeing something similar on my Quantum 220.
It sits under the bubble plate and I think it is there to prevent over tightening of the plate.

I think you are right

I didn't feel it fit well.

ill try it again