I shocked my 15k vinyl pool about a week ago - ran tests today and all levels are within range except I can't test my chlorine level still because my test kit (Leslie DPD) only goes to 5ppm. Can I somehow us a larger sample or different method to measure higher with this kit until I can get another one?
Is it ok to swim with high chlorine levels? (I guess I thought wrong when I figured the shocked level would dissapate in about a week).

CL ??
PH 7.3
Alk 80
Cal 90
CA 45

Thanks for your help.