I'd like to start off by thanking this site for ruining my fun of all pools. Now when I first saw this a few years ago I would go "WoW is that water clear". Now my mind quickly went to "Wonder how they filter it?" Thanks!!
San Alfonso del Mar resort at Algarrobo has a pool that is over 1000 yards long, 115 foot deep end, and holds over 66million gallons of water!
Just for fun as I was holding my daughter who was sleeping....I went over to the pool calculator and did some math.
----To raise an FC level of 3 to a level of 7 it would take 4277 Gallons of 6% bleach
----To raise the same FC level using 73% cal-hypo it would take 3043 Pounds
----To lower the PH from 7.9 to 7.5 it would take 612 gallons of 31% muriatic acid
Now who's up for a cruise to Chile??