SWG Install and Opening Help

Alright I'll add the LC tonight, retest and get up to level throughout the day tomorrow, and find some muriatic acid and more LC tomorrow evening. Can I add the MA any time between leveling my SLAM?
 
When you initiate a slam you add what poolmath advises then check it 15 minutes later to see if you hit the slam level. If not add to reach the slam level again. Rinse and repeat till the first time slam level is achieved. Then you can take a 3 hour breather and Check/add back what's missing to hit slam level. As the slam continues it'll take less frequent topping off till it'll hold it completely.