Hello all! Not a new pool owner but new to the forum. Former Leslies fan, but my last visit the guy really was just trying to sell me too many things and ignored the fact my pool was salt water even though they KNOW this - it has been for the last 8 years (previos pool then this one). Anyhow - our current pool is saltwater, quartz plaster and a sand filter. BASIC equipment and I have the Taylor test kit that tests everything but salt levels. I used to use a pool service but they really just brushed and added muriatic acid once a week so I figured I could save a couple hundred bucks. For the most part our pool has been easy to maintain and given us little trouble. Recently, I had a mustard algae outbreak and just before that we had several rains. I am pretty sure I over shocked with dichlor bc my CYA levels ended up off the charts (120+) In the past keeping cya was my challenge, not having it too high. I eliminated the algae but struggling to get chlorine back into the pool. I did a partial empty and fill and some algae returned so (i know, tsk tsk) I shocked it again thinking my cya level wouldnt shoot up - but it did and back to 0 fc on my test kit. Drained HALF my pool, refilled and went to walmart and picked up 8 GAL of wallys bleach. Turned off the swg for now ( I need to add a bag of salt after the fill) and used the calculator which said to SLAM the pool to a fc level of 12 - my cya is now sitting at 30. It recommended 2 gallons of bleach and then retest which I am doing in about an hour after it has had time to cycle through. After I did all of that, I downloaded the pool math app - on there it says to not go over 6ppm on the chlorine level and gives slightly diff reccommendations. For SLAM, a 30-50 CYA level is recommended but for normal pool operation with a SWG it says to keep it bt 60-70. After waiting to see if the chloring holds, should I add a bag of dichlor to raise my cya? Im afraid straight stabilizer will bring it up too much and I am already dreading my water bill. We have what looks like small specks of some mild algae trying to regrow and im sure its the south Texas heat and no sanitizer in the pool. My water was actually looking pretty decent after my initial previous shock treatment but the test kit told me it was def not balanced. My PH is 7.5 and the pool is between 11,500 and 11,800 gal. We also removed the hayward vac and use a polaris robotic cleaner. The hayward just could not handle the leaved from the neighbors trees and the polaris is nice enough to brush the walls for me too 
Hoping I didnt overchlorinate and that I am back to clear water (our city water has a greenish tint to it) and the spots disappear! My biggest issue is getting the CYA back to proper level and being able to keep a chlorine level. Weve basically been shocking and still at 0 for over a month. Whatever goes in is just used right up. Thanks!! and good to be here
Hoping I didnt overchlorinate and that I am back to clear water (our city water has a greenish tint to it) and the spots disappear! My biggest issue is getting the CYA back to proper level and being able to keep a chlorine level. Weve basically been shocking and still at 0 for over a month. Whatever goes in is just used right up. Thanks!! and good to be here 
The APP is giving you some basic info, but doesn't realize your current condition- algae/SLAM. If your CYA is at 30, leave it there and increase (and maintain) the FC of 12 with liquid chlorine. Continue with the 
