« on: November 16, 2012, 08:04:58 AM »
Keg cleaning is a fairly steep curve from the jump of homebrewing. You will want an air compressor for blowing out rinse and caustic/acid/cleaning. If you are using new kegs you will want to passivate them first with acid. Of course with plastic kegs you wouldn't need passivation.
Pulling spears is a ridiculous waste of time. You should be cleaning kegs upside down with a keg filler/cleaning head. You probably won't get enough pump pressure with a submersible pump (if I understand you correctly) for caustic, though I do use one for sanitation.
Basically you need a set up that you can have the o2 (AC) and the Co2 plumbed into a line with the rinse water, caustic, and sani. You rinse first, blowing it out with compressed air, run caustic, blowing it out with compressed air, run rinse again, blowing out with comp. air, then sani and blow out with co2, then charge keg to 10-12 psi after purge. You should leave the air and co2 on to imcrtease pressure and effectiveness during all stages.
I will take a picture of our keg cleaner (home made 3 head) and show you how it is set up later today.