I've finally seen the light and decided to ditch ezpool. We've had problems all season and I'm constantly having to adjust everything. I realized on paying for overpriced algecide. So, wondering if I need to shock before I start. My pH and Alk are good. FC is 0.3. Stabilizer (this is CYA is presume?), is 25. These are results from the pool store today, I will be buying my own test kit ASAP. I have an 18x36, 23000 gal inground. TIA!!