well tonight i have fitted all , well almost all the wood in place and am waiting for the wood glue to dry now , you can see the sump section now and the opening size to it , should allow the skimmer plenty of water flow i will be coating the tank in resin as soon as it arrives all the joints will be covered in resin cloth first then the resin painted over it , i am not adding any colour pigments to the epoxy as it weakens it , but since all the tank back and sides will be coved in foam i dont care !