I am almost about to quit the hobby

[Meg0000]

As Colin had mentioned, the O ring is placed in between the motor and the filter(the part where the motor is attached/joined to the filter) to prevent water from leaking out.

Here are some links about the C4 spare parts for your understanding.

Replacement Parts - Fluval C Series Instruction Manual [Page 3]

Fluval C Series Manual Online: Replacement Parts. POWER FILTER START-UP To re-order parts for your Fluval C Power Filter, please refer to the parts list below. READ AND FOLLOW ALL SAFETY 1. With the cover removed, fill the Power Filter case completely with water and replace cover. B 2.

www.manualslib.com

https://fluvalaquatics.com/us/product/c4-power-filter/

I wached the video and everything seems in place in my filter.

I have had no problems with water leaking out so I guess I have the o ring and I just didn't notice

 

[Meg0000]

If the grommet were missing, the filter housing would leak a lot.

Try removing the cover and see if the noise goes away..could just be the lid vibrating

I probably have it and didn't notice then.

I always remove it because it makes noise

 

[Meg0000]

-25C is very cold.

My ex-colleague lives in Toronto.

Yes it's super cold, I hate to go outside at this temperature.

Ok I never went there but I know a lot of people who did. They have a nicer weather there I think

 

[Lajos_Detari]

If the lid is making noise, you can tape it or use a rubber band to tie it around the filter case.

Did you manage to push the intake U tube down to the base where the impeller sits?

Another thing you can try out, is to shorten the intake tube/extension.
If the impeller or motor is not working properly, it may need more power to suck/pull the water up through the intake tube. And sometimes this can create some noise.

So, if you shorten the intake tube, it may give more power to the impeller/motor.
And as a results, it may reduce the noise. (my theory).

 

[Meg0000]

If the lid is making noise, you can tape it or use a rubber band to tie it around the filter case.

Did you manage to push the intake U tube down to the base where the impeller sits?

Another thing you can try out, is to shorten the intake tube/extension.
If the impeller or motor is not working properly, it may need more power to suck/pull the water up through the intake tube. And sometimes this can create some noise.

So, if you shorten the intake tube, it may give more power to the impeller/motor.
And as a results, it may reduce the noise. (my theory).

The intake was already pushed down, and the tube extension is already at the shortest lenght.

I have good news, the filter has been very quiet for the last 2 days! I probably fixed the problem without realizing it last time!

 

[PheonixKingZ]

The intake was already pushed down, and the tube extension is already at the shortest lenght.

I have good news, the filter has been very quiet for the last 2 days! I probably fixed the problem without realizing it last time!

That’s awesome! Whatever you do: don’t touch it

 

[Meg0000]

That’s awesome! Whatever you do: don’t touch it

I won't!!