i tested last night an hour after i added 2 * 1.42gl * 6% bleach (~10:30pm)
the FC was 20.
this morning at 6 am the FC was 8.
i added 1 * 1.42gl * 6% bleach before catching my train
my wife added 1 * 1.42gl * 6% bleach ~10am.
she will not be testing, so the next test results i will have will be this evening.