I have an external filter, fluval 406 on a 240l tank. Its my first ever external and is on about 5/6 months.
The flow rate had dropped off considerably and I'm not sure why.
For the first month or two I did not have the impeller cover attached properly so flow rate was poor but when i fixed this it went back to normal.
I have cleaned the impeller and sponges etc but it has not helped much.
I am worried that the pipes could be blocked but the shouldnt be as the strainer has always been on the inlet.
Can anyone offer any advise? Can i clean the pipes somehow or what do you think has caused the reduction in flow rate?
Any and all help is appreciated.
The flow rate had dropped off considerably and I'm not sure why.
For the first month or two I did not have the impeller cover attached properly so flow rate was poor but when i fixed this it went back to normal.
I have cleaned the impeller and sponges etc but it has not helped much.
I am worried that the pipes could be blocked but the shouldnt be as the strainer has always been on the inlet.
Can anyone offer any advise? Can i clean the pipes somehow or what do you think has caused the reduction in flow rate?
Any and all help is appreciated.