<a href=showthread.php?s=&postid=11668879#post11668879 target=_blank>Originally posted</a> by risin
For acrylic, the glue you use is really unique; it is called WeldOn and comes in number, I used #4. It has about the same consistency as rubbing alcohol, and does nothing until it touches 2 pieces of acrylic. I tested the strength of the joint before I built my sump, the piece of acrylic broke before the joint.