First of all, thank you for the wealth of knowledge that is here. It is great to not only see people helping one another, but being kind to one another in the process.
My wife and I are in the process of purchasing a home in the Phoenix area w/ a ~13,000 gal play pool in the backyard handled by their Pool guy using almost exclusively Trichlor (from a 6" Deck container that empties it out into the pool from a 1" hole). Being rather new to pool maintenance, I grabbed a cup of water during the inspections to inspect the inevitable trainwreck of a water situation the pool had. Pool is mostly clean (in need of a good brush w/ minor signs of some growth but no stains that would require a major acid wash) w/ good quality plaster (for a 13 year old pool).
I know to have extremely little faith in a pool store's water testing (though am waiting to purchase a TF100 till this home purchase becomes more of reality). Here are their "results" (done with a strip test, then some handheld electronic test).
Tot Solids 2110
I know w/ the higher pH the tests are off and obviously take this with a grain of salt until I can actually get to work at righting this ship here, though I am wondering if I should simply "start over" with the water as opposed to partial refill (Calc says 75% exchange+ if this is a semi accurate test reading). He said my water was "old" in which I looked rather odd at him.
With winter coming and cooler temps her in Arizona, we aren't intending to swim until March. I know CYA may dip in the cooler temps. I know a partial refill is obviously in order w/ the exclusive use of Trichlor from the previous owner.
Other than saying "hello I'm new!" my question is really this: Should I wait on the drain/refill through the winter, do a partial drain or completely start anew? And yes, I will get real results on the water testing when we acquire the property.
Thank you very much for your time everyone, looking forward to taking this challenge on.