weld on 4

Hey guys, I am in the process of building a 300 gallon acrylic aquarium tank. I started of using the pin method and weld-on 4 But my first seem had a lot of bubbles see the attached pictures. It looks really bad and now I know I have to take it apart and start all over. My question is should I...

Hey guys, so I have some questions only for those with experience bonding these materials, as I am in the final stages of a $600 Acrylic Sump build, and this final bond stage is so important for the quality and life of the sump. I found a little bit of material from Melevsreef on how to bond...