With 17K gallons, your PF is 7. Calculate doses like this:
active% x pounds chemical x PF = ppm change
eg: 1.00 (cyanuric acid) x 1 pound x 7 = 7 ppm (per pound of CYA added)
eg. 0.55 (% chlorine in dichlor) x 1 pound x 7 = 3.85 ppm (chlorine per pound of dichlor added)
eg. 0.50 (% stabilizer in dichlor) x 1 pound x 7 = 3.5 ppm (stabilizer per pound of dichlor added)
8% plain household bleach has about 0.7 lbs of chlorine gas equivalent, so:
eg. 1.00 (% chlorine in chlorine gas) x 0.7 lbs Cl2 (per gal 8% bleach) x 7 = ~4.9 ppm (chlorine per gallon of 8% bleach added)
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