Yeah man, this is hitting home too...I got hrs reduced for a few months now, but today we got word that if things don't pick up by January the company will close its doors...I still have faith and do...
I use what ever laundry detergent I have on hand and it works fine...I just make sure it does not have softeners.
I do add some backing soda or oxiclean some times
I use the PC 7335 which is the same as the 7336 but with a 5" backing plate...these are 1st generation units and are not very powerful but work just fine...I'll recommend you to install a 5" backing...
I also live in an apartment complex and the only thing I could do was to run a 100' heavy gauge extension cord from the closest out let to my window, run the ext cord all the way down and...
Once, I made the mistake of spraying Rain-X on the inside glass...it fogs like crazy :nomore: so I used APC+ 10:1, followed by a wet rag and then my Megs glass cleaner to removed it and it worked...
I have not tried it with OPC but APC+ foams nicely in a foaming sprayer, but I did notice that the sprayer kind of leaks, I'm not sure if this is something "normal" on all sprayers tough
For me this is the MF towel life span: from glass/paint, goes to door jambs, then tires/wheels, then engine bay and then to oil changes, then they can RIP :D