Having never given birth or cleaned out a septic system (ask Betty Sue about this one, she has GREAT story about cleaning septic systems), this task is now on my top ten of nasty stuff (I tried to think of ten, but the other most disgusting thing I can think of is when my fingers grew together due to tinea under my cast when I broke my arm, so lets say top two). When I say I, I actually mean US, as Husband-person took one look at this job and decided I couldn't do it by myself.
At my father's urging and with the help of a rough and ready demonstration at his place, we armed ourselves with paint brushes, orange oil, glen 20, metho, sheets and towels, and got stuck in.
Gross out number one: looking under the cover revealed an impressive growth of mould all over the cover and the grills which took me a good hour with a entire pack of cotton buds to clean off
Gross out number two: the amazing collection of lint in the filters, which was even more impressive because we only cleaned them out 2 months ago
Gross out number three: the delight black growths (also mould) in the unit itself
Gross out number four: When Husband-person cleaned all the crap off the wheels of the fan, with no shirt on. I came in to find his chest and arm hair encrusted with nasty black mould/dust. urk.
At various times during this process I wanted to kill myself, the airconditioner and Husband-person. However, we survived intact (except for my moment of fear when I thought Husband-person was going to take to the unit with a hammer to get the cover back on) and the airconditioner now smells of NOTHING AT ALL.
Yuch yuch yuch yuch yuch.
P.S. If anyone wants instructions on how to clean their air conditioning unit, happy to oblige. Not going to help though.
P.P.S. This process has put me off any desire to a/c the rest of the house, just from the perspective of having to clean more than one unit.