I use a small pond pump on my IC. I use tap water for the first 5 gallons and save that ~140 degree water to Oxy Clean everything when I am finished.
First 5 gallons out of chiller
I then add a bag of ice to the sink and recirculate until ~74 or so
In the meantime I am sanitizing everything (already did IC) and re-hydrating my yeast
Once to pitching temp, I drain into bucket and then pour from one bucket to another to aerate
And in the closet until fermentation starts, then to the ferm fridge
My GSD rescue helps me wash stuff outside
And finally, taking a OG. Hit 1.040, which is exactly what this recipe calls for.