First time opening

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
1 - No right/wrong answer. Every pool/location is different. You can run single or split times, whatever you need to adequately skim the surface of the water and mix chemicals.
2 - You can if it seems to be a significant leak. Many owners just accept a small leak as an inconvenience of sorts as long as it's not causing any other problems.