What are you trying to achieve by draining? Draining your pool really only helps to lower CYA. Your CYA of 70 (based on pool store results) is not terrible. What you need is chlorine and your own good test kit. Maintain that at proper levels for several days and then see how the pool looks.
for liquid chlorine, try Walmart, Lowe's, home depot, ACE hardware, if you have them try Ocean State job lot and Menards. It doesn't have to be a specific brand. My local Walmart has had a good supply of Pool Essentials Pool Chlorine which is 10%. Or you can get plain, unscented bleach. No Clorox with Cloromax or whatever, nothing labeled splashless or any of that junk. And seriously, ditch those tabs and the floater - they won't do you any favors unless you have low CYA.
As stated by @V___25 you need liquid chlorine (LC) to raise your FC level to 8-10ppm. Buy 10 gals to get you started and stay away from pucks as well for now. Focus on that and you will see the pool start to clear. Both Walmart and Home Depot have pool sections where there should be liquid chlorine. Sometimes it is noted as liquid shock. I would suggest to stay away from granular shock as you get the best bang for the buck with liquid chlorine.
Thank you for a good write up I’m looking to see who has it in stock now but a lot of them say liquid shock? Would that be the same? And you think 10gal I need now to put in?? Oh boy lol
This will work as it is 6%. Not sure how much it costs. The lower the % of sodium hypochlorite then the more volume you need to add to reach your targeted FC level. A 10% or 12.5% LC may cost a little more but gets you there with less jugs. However if that is all you can find then go with it. No need to spend time doing a lot of searching from store to store.
When you do a SLAM you need to be there to monitor it as well a test every 3-4 hrs during daylight time. So if that works better to wait till Friday or Saturday then so be it. No need to add LC now although every little bit helps but when you start to SLAM ensure you have minimum 10 gals on hand. As noted below 1 gal raises FC 6ppm based on your pool volume of 10,000 gals and using 6% LC. Your Leslie's pool test showed CYA of 70 so that needs to be verified but if that is correct then your SLAM target is 28ppm. So you will need 5 gals (5gal x 6ppm =30ppm assume starting from 0 FC) to reach SLAM level, then you need to maintain it at that level for several days. Be prepared to add a gall every 3-4 hours initially, but that will need to be confirmed by testing. You also need to brush the walls and floor routinely plus keep your pump circulating.
