Hi I am new to this forum. For man years I have kept tropic fish and for the last 15 or so I have mainly kept Milawi cichlids. I have a 5 ft tank with an Eheim 2178 pro 3e 600T filter and this one is eight years old. In the last three months live changed the media and renewed the seals and other parts but now I am getting water tricking from the top back of the filter head. The seals have been renewed but this is coming from the canister head When the canister is at 45 degree angle on start up. Any ideas? I don’t want to pay out £400 for a new system.