Warning ... this is a bit long.
Recently moved into a house with a 30+ yo pool that needed redone, drained it and installed pebblesheen, new tile, new skimmer, new auto-fill and new Kool decking. Got 3 months of pool service included in the project that just ran out ... so time to start following the great advice found here.
I had estimated the volume of the pool to be 20-25k when I drained it. A few weeks ago added some salt. Before I had 400ppm (Taylor drop test) added 4-40lb bags and measured 1400ppm added 2 more bags and measured 1900. So, based on the Pool Calculator I must be around 20k gal ... a bit lower than I expected given how large the pool looks (I guess it is just shallow)
Had a party on Saturday with lots of people in the pool. In the early evening I measured my chemistry (using the TF100 kit):
CYA: 100 (seems way high ... thanks pool company; although planning on eventually switching to SWG so this may not be too bad)
Looks pretty good, but worried about the high load that day and planned to go get some bleach.
Tuesday morning measure again (Is "it is over 100 degrees out" a good enough excuse as to why I did not test on Sun and Mon?):
Rest the same
OOPS need to get that bleach.
Pickup some bleach on way home and Tuesday night measure again:
Check out Pool Calculator for 20k gallon (recommends 8-13) from FC 2.5 to get up to about 11 calls for just about 2-182oz 6% Walmart Bleach. Turn on pump. Add the 2 bottles of bleach. Come back 1 hour later and remeasure:
Figure maybe it was not fully mixed and I sampled in a high location. Measure this morning:
Still higher than I would have thought I should have gotten. Just wondering if I am missing something or what might explain the higher than expected FC.
Thanks. You have all been so helpful to me already and you did not even know it.