My Overhead Filter

[mepiscool]

hey guys for the last few day my filter is making some weird noises the only way i can describe it is theres a stone rattling about in there some where? 1 thing i should mention that my electric went off for 2 secs then ever since its playing up i have 2 overheads 1 is fine but 1s playing any help?

 

[matchstickman47]

could i ask what you mean by overhead filters... is this an external .. or internal?

 

[mepiscool]

its internal sorry its connected to under gravel filter

 

[bitteraspects]

lol. i thought you meant a real OHF. i was completely surprised someone in the UK was using this system. so much for that. you got my hopes up.