I would say its @8.4 or possibly higher because its definitely purple. 8.2 looks more of an odd brown/reddish color (not exactly on the chart either). Have you checked your tap water yet? Test it straight from the tap with both tests. Then set out a container of tap with an airstone or bubbler. If you dont have an extra, give the water a good stir every so often to release dissolved gasses. Check the ph (both tests) in about 24hrs. Let us know how these numbers look and we can figure out if its something to be concerned about or just part of your cycle.