i had some similar problems, 1st you could add peroxide (11.63ml per gallon) i was also told about some porducts to help this, cannazym and hydroguard, but i dont kno there effictiveness because havent gotten em yet (ordered like 2 weeks ago wtf), also would clean the revisor good, use 1 part bleach to 10 water to steralize and rince until you cant smell the bleach anymore