Hm-m-mh. I don't think I'm going to make you happy. But I'll respond.
1. Do chemical 'burns' of swimmers happen? Probably only as "1st degree burns" (per this article: https://www.emedicinehealth.com/chem...k_medical_care).
2. Do more serious burns happen? Yes, but outside the pool, when handling pool chemicals.
3. Can you prove the pool was the cause? Probably not. 1st degree chem burns aren't distinguishable from many other sorts of skin irritation.
4. Are 1st degree chemical burns from pools a real risk? Not so much. By definition, they are mostly irritation. By contrast, poor chlorination can result in infections that put you in the hospital or even kill!
5. Is there any indication in the readings you reported of real problems? Yes:Free Available Chlorine .11 <= Dangerously low6. Can you get any satisfaction by reporting those test results? Probably not. They look like machine read test-strip results . . . which means they are not very accurate. If I were hired for the defense, I would testify that those methods are unreliable and inconsistent, and then demonstrate that fact.
Total Chlorine .77
Combined Chlorine .66 <= Indicative of extremely poor pool management.
pH Level 6.3 <= Low enough to irritate skin
Calcium Hardness 135
Cyanuric Acid 209 <= Much too high
Phosphates 3273
Saturation Index -2.1
7. Is there anything else you can do? Possibly. Though I don't trust those test results much, taken as a whole, they indicate a poorly managed commercial pool with LOW chlorine, HIGH CYA and generally poor management. If there is municipal health inspection in the city or county where the pool is located, a phone call will probably result in an unannounced inspection. Given the level of screw-ups indicated in your result, the chance that the inspector will find a screwed up pool and shut it done is high.
If you want to engage in some guerrilla tactics, you could have friends make similar calls at random intervals, and produce further inspections. From what I've seen motels and hotels generally do not manage their pools well, and do not have staff capable of doing so. There are exceptions, I'm sure. But I've never encountered a properly managed hotel, motel or apartment pool.
Good luck.
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