Thanks mate..
Its a Chinese brand I'll post the name when I get home. It's really well designed and cheap when compared to the glass pre-made sumps I wished they made them even bigger.
I will do a DIY 4ft sump for my 500g but that's a future project.
It's actually a glass tank the thickness of the glass is 1.2mm.
I will be checking the plumbing tonight and have my fingers crossed becuase I didn't want to use plumbing sealant.
I may wish to move the tank later and permanent plumbing would cause problems.
I have chosen to use plumbing tape so I can take it apart for a tank move.
I took extra care making sure the fit was very tight.
Here's a pic of the finished set up minus the spray bar and the sump isn't aligned so the water sprays evenly into the first chamber.