Been in my new-to-me house with my new-to-me pool for a couple of weeks. Received my TF-100 test kit in the mail today and promptly got to work!
The previous owner claimed the pool was like 34k gal (and he has pool water test results from a pool store showing 31k gal...not that that means anything), but when I do the math I get more like 19.5k. Here is the calculator I used from Pentair's website...
The pool is only two years old, so I'm guessing his number is coming from what he remembers from the install. I figure I will go with my calculation unless someone tells me otherwise. I will add pics of the pool below for reference.
CYA 100 (or more)
I've been lurking for several weeks reading up and trying to get a handle on all this. Obviously the thing that jumps right out at me is the CYA. The system has an autofeeder tube in the plumbing for pucks, and I'm betting that is the only method of 'pool maintenance' the guy ever did, thus the high CYA reading. The CH is also a concern. I put the numbers in PoolMath and this is the result...
I don't know if the images can be viewed big enough to read, I apologize if they cant be clicked-on and viewed larger. TFP shows a target FC of 8-13, I imagine that is due to my CYA being so high. It recommends draining 50%...ouch! I will drain some out this weekend, although I don't know how much I can do with our ground so wet from torrential rains over the past 4 months. The french drains fill up very quickly when it rains!
One question I have is when I buy bleach/baking soda/borax from the Wally World, is the total amount listed on the container by weight or volume? My guess would be volume, but please correct me if I am wrong. Another question is where to buy calcium chloride or calcium chloride dihydrate for raising the CH. Is a pool store the most likely avenue, or does Lowes/Home Depot/Wal-Mart carry something?
Looking forward to getting all this under control with the TFP community's help! Thanks to all, and all advice is welcome!! Here are a couple of pics of the actual pool...