Filter flow fabric softener dispenser cleaning

[adam-aussie-vac]

Hey guys, I just picked up a filter flow fabric softener dispenser for my GE but it’s brown on the inside but the dispenser is white after scrubbing the outside, how would I clean the inside of it? Is there a possible way to take it apart to clean it or what can I use?

 

[bajaespuma]

Use hot water to soften the wax build-up, NOT BOILING, then apply straight ammonia with a toothbrush.