Did you get the pool up and running? If so post your numbers in a new thread under water balance or something . I will be traveling for next couple days and wont be able to help much. I can say this though if your CYA is truely 150 you need to dump 75 percent of your water ond fill again. Do this with the blue hose on the filter. Run it to a sewer or wherever it will drain away.Set the valve on the filter to waste and start the pump. it will pump down the pool.If your water is new ( you just filled the pool up ) then your cya could not be 150. Start a new thread for help on the water balance part. I am sorry I wont be around much.