I tried searching for this answer, but "wait" gets lots of hits.
So my pool water is cold - 63 degrees, and I want to let it warm up for about 4 to 8 hours so I can test CYA. So can I just wait and test everything or do I have to test pH, FC, etc. now and CYA later?
Also, can you wait days before testing - like mail a sample to someone and have them do a test?
Thanks as always.