Dot 5.1 brake fluid is what you should be using, as its better than the dot 4 and obiviously dot 3.
If you undid the fluid line and let air into the system then you need to get them bleed as there will be air in ur lines and ur brake wont be working 100%.
Oh and the main thing, FFS use paragraphs in ur posts as its a real bitch to read what you wrote.