avid juicy 3

[Sloggy]

new to MTB so lots of Q

After riding the new bike i noticed drag on the rotors from the brakes

I took it back to the LBS twice and the Technion finally got it right add has been fine for 3 rides. Today i washed the bike and removed the wheels and when putting the wheels back on i noticed the rotors touching again. Is this something i could have done wrong, or faulty brakes and time to fight with LBS or do i have to calibrate the breaks every time i remove the wheels. makes no sense. ps I put the little spacer things in when i washed the bike

 

[Sloggy]

my mistake to wash the bike I know what was i thinking