Been having so much problems with the way the tank designed but finally got it running now.
1st problem
Sca tank used metric bulkhead and pipping.. so I switched everything over to in.
2nd
2 return holes for the nozzle are too small had to redrilled from 1/2 in to 3/4
3rd
Overflow wier was way too low.. had to glued a strip of acrylic over to raise the water level
Switch over to eshopps r300 sump because the original sump decided to leak after 3 day
Here's pic of the tank after rock work