performance

Does anyone have actual evidenced backed input on the most efficient way to run a five-stage RODI unit? Is it better to run in small, frequent batches (example: 1 hour per day, 7 days per week), or occasional longer sessions (example: 7 hours once per week)? I'm thinking mainly from a DI...

Hey guys, my skimmer is hitting the 1 year and 8 month mark. I'm looking to compare skimmer performance? This skimmer works and it skims but I want to make sure the pump isn't leaning toward the "weak" side? Regular monthly maintenance is performed. Otherwise let me know if looks good? Thanks!