The parts arrived. Fitted using PTFE and feels nice and tight. Got it all running now, with about 2-3mm spare depth in the sump
Really nice to see it running properly now. I think I will be doing a mod on the weir height to save some space in the sump.
My Jecod RW-20 was way too powerful for my 4fter. I had to turn it down to 1 out of 10, and change the mode to the least aggressive changes to stop it blowing my sand around. I had LPS on the oposite side of the tank, that really didn't like the fast flow. However, in this tank it's turned up to 10, on Else to provide chaotic flow, and there are huge areas where there's barely any flow. That exta two feet, make a huge difference in how the flow spreads out. Going to have to look at more powerheads. I'm thinking about a Jecod Cross Flow - anyone got one?