well first thing to do was get it washed up the guy I bought it from was using it for fresh water,had all the little pastic fish homes still in it. The tank has center over flow came with wet/dry system which I guess was ok for his set up but I'm changing it to sump/ref. After good cleaning it was time to lay out close loop system, and thats when things went from happy times to well can't say here!
while drilling first hole I cracked the arcylic, the crack was only about 2" 1/2 inchs long but wrecked my happy day.I went to my shop and cut a 3"3/4 patch out 1/4" arcylic sheet got my Weldon 4 ,to make sure crack would not get any larger down the road I drilled small holes at both ends of crack
with this done went ahead and finshed drilling there are four 1" bulkheads for return and one 1"1/2 for the supply to pump