Suggestion(s) please??

 From:  Frenchy Pilou (PILOU)
4325.2 In reply to 4325.1 
No your object is perfect
It's just artifact in big zoom*, if you render your object there will be no problem ;)

The only thing you have is on the "top" sides, some are in two parts (lines overlaped)
So delete faces one by one and rebuild it

* this is for have speed visualisation on the screen for minimlize number or facetts ;)

you can change this in menu Option View Mesh angle