I was going to switch from Biguanide (over 20 years) to Pristine Blue and became aware of your site. Ordered TF 100 test kit this morning. Brand new vinyl liner. Installing new filter sand today after replacing a couple of laterals and will finish filling pool. No test results yet. Will balance the water while waiting on test kit but need to get something in the water to prevent algae. Where do i start? Could buy a temporary test kit until TF100 comes in hopefully Saturday. Can test for PH, TA and CH roughly with old test kit and and have test strips from Walmart for chlorine but that is it. I would like to get the pool set up and swim before winter and i have to cover it up.