Head south down Rt130 to Wally World for some bleach. Don't stop at Riverton, if you get to Leisles... you went to far

At 27,000 gal, 407oz (about 3 1/3 jugs) of the 8.25% will add 10FC to get you to shock level. Keep it over 15FC (but not over 20FC) until your CC reading is zero, the pool is clear, and you loose less than 1FC overnight.