If your test kit only goes to 5 and is reading 5, then it could mean 5 or it could mean higher than 5. Same with your pH. It could mean 8.2 or it could mean higher than that. What color is the chlorine test showing? Dark yellow, orange, ?? I am not calibrated on dichlor dosages. What did the package say in regards to how much a dose of dichlor would add to your chlorine level? I will tell you that for every 10ppm of chlorine that it adds, it also adds 9ppm of CYA.

You really need to get a better test kit. An OTO/Phenol Red kit is fine for quick daily testing, but when you are trying to clear a pool, it isn't adequate. We recommend the Taylor K-2006 or 2006C (same kit, larger quantities). You can get it through the Amazon link in my signature below. Only order if the seller listed is Amato Industries as sometimes other sellers substitute the K-2005 instead which you don't want.

To get a more accurate pH reading, retest it when the chlorine is low. Repost with new numbers and order a good kit.