More than half way through my self build and just finished digging all my trenches for my returns. I am pretty much sloping down to the pool for all my lines but there is a few spots where I would slope up just a little bit from the pump and then back down to the pool.
I hope this makes sense. Is this a problem? I read somewhere that the pump should be higher than the skimmers and returns (which it is) but the pipes dont make a clean run straight down from the pump. The parts that slope up however, never goes higher than the pump.