New pool owner here, I am very DIY guy, so hopefully this is an issue I can work out with you all instead of calling a professional. $$$$.
We just moved into house and we have a ~30K gallon DE filter pool. We have noticed a brown scale at the bottom of our pool. What is causing this and how can I clean it up?
I have my chemistry specs here: (Keep in mind I am new)
Total Chlorine- 4
Tot Alkalinity: 99
Adjusted Alk: 54
Total Hardness: 352
Please let me know what I can besides draining, I heard something about a no drian acid wash.