LOL!!, no argument here, it does in fact work. Just a different way of looking at things. Many view the sump as not as critical, which is fine as it probably isn't. I view the sump as a pressure vessel every bit as much as a display tank is and for pressure vessels - I'll only use good cell cast. Like I said - just a different viewpoint and I'm not certain one is more or less correct than the other but everyone has their own way of doing things.
I've often said it is workable for smaller sumps, just not the *recommended* (IMHO) material. Perhaps just semantics at that point.
That said, I'd rather see someone use a good extruded material and get solid joints than use a poor quality cell cast and get weak joints. Extruded materials are much more forgiving insofar as edge preparation goes (it mashes out much easier) so the idea that hobbyists use that and get frustrated with cell cast is completely understandable (not saying anything about you Marc, just hobbyists in general). Well, that and most commercial solvents are rather poor for cell cast materials, again IMHO.
FWIW I know the material Marc uses and it is the best of all extruded materials so he has confidence in the material and that is something I can appreciate
OTOH, I *personally* don't buy the money issue, not in this hobby. If one were to say they use extruded because it's good enough for the purpose, dont' have easy access to good cell cast, *and* you can save a few bux as a side benefit - I'd get it. But not solely to save money, just the wrong hobby for that, once again IMHO. Mayhaps I am spoiled by having easy access to good materials - dunno, but I do appreciate the possibility
..sorry for rambling
James
