So last night I cleaned it out, removed and cleaned the O ring and all around the seal area - but its brand new so of course, no dirt. Put it back and left it running- not a leak. This morning it was sat in a small puddle. I pulled the plug and left for the office without isolating it from the tank with the taps - big mistake - wife called me 4 hours later and it was cascading down the sides, overflowing the dish I left it in and flooding the living room with 5 or 6 litres. I'm in serious trouble now!
I rue the day I bought this thing. I will try to get some service out of Tetra but this is a real pain.
Does anyone know the biggest Eheim I can get through a 50cm high doorway?