Do any of you have the issue with the overflow seems that my tank has? Do your overflow columns have a nice clean weld, or is using a strip of acrylic to seal the imperfection a common practice? It is ugly...looks like an amateur installed the overflow columns.
Two of my three acrylic Tenecor tanks have over flows. My 450 has two overflows and they are fine, no issue. My 180 looks fine but I think someone attempted to change the drain size by gluing some acrylic over a hole and re-drilling. I had a lot of trouble getting a bulkhead to fit. When I got the used tank the whole area was covered with silicon glue telling me some one had leaks in that area. I don't think this was an original issue.