So I just finished adding 20 mule borax to my pool. My pool has between 17k-19k gallons. I figured I just go with the 15k measurements and everything appears to be good so far ph-wise. I know I'm supposed to wait 48 hours before testing for borates... but I figured I go ahead and just do a check. It already appears like I have 50 ppm but the color doesn't appear distinctively 50ppm. It could be 80 ppm.
Can anyone let me know if the readings are generally high or low in the first 48 hours? Is there a trick to getting a good reading from the test strips? Any other alternative testing methods out there? I have 2 young kids and want to make sure they aren't swimming in a pool that has a too-high level of borates. Thanks.