Commercial vs Residential: Bob Lowry Explains the Big Differences

The calm of a backyard pool and the chaos of a hotel deck look similar from the waterline—but they run on different rules. We pull back the curtain on why commercial water turns volatile under heavy bather load, how chlorine gets consumed faster than you can pour it, and what it really takes to keep guests safe and inspectors satisfied. From oxidation priorities to daily logs, this is a candid look at the work behind a compliant, open-for-business pool.We talk through the core chemistry differences between residential and commercial service, showing how algae and bacteria drive decisions at home while bather waste dominates in public settings. You’ll hear why limited testing once a week works in a backyard but fails in a busy facility, and how ORP and pH automation provide continuous control and defensible data. We unpack the strengths and gaps of CPO training, where facility operations meet code, and where deeper chemistry knowledge fills the holes—covering sanitizer behavior, breakpoint chlorination, combined chlorine, and the pH leverage you need to keep water stable.Then we get practical about business realities: interacting with health inspectors, documenting everything, handling fecal incidents, and responding to late-night calls that can decide whether a pool stays open. We weigh insurance requirements, true pricing for time and risk, and why mixing dozens of residential stops with a few commercial accounts can strain your schedule and cash flow. If you’re thinking about adding hotels, apartments, or HOAs, you’ll leave with a clearer view of the workload, the liability, and the systems that make it sustainable.• core chemistry goals in residential vs commercial pools  • limits of CPO for deep chemistry and where it helps  • daily testing, logs, and inspector expectations  • using ORP and pH automation for control and proof  • fecal incident response, uptime pressure, and liability  • pricing for risk, insurance needs, and hassle factor  • choosing a business model and on‑site operator support  • why advanced chemistry training complements certificationSend us Fan MailSupport the Pool Guy Podcast Show Sponsors! HASA https://bit.ly/HASAThe Bottom Feeder. Save $100 with Code: DVB100https://store.thebottomfeeder.com/Try Skimmer FREE for 30 days:https://getskimmer.com/poolguy Get UPA Liability Insurance $64 a month! https://forms.gle/F9YoTWNQ8WnvT4QBAPool Guy Coaching: https://bit.ly/40wFE6ySupport the showThanks for listening, and I hope you find the Podcast helpful! For other free resources to further help you:Visit my Website: https://www.swimmingpoollearning.comWatch on YouTube: https://www.youtube.com/@SPLPodcast Site: https://the-pool-guy-podcast-show.onpodium.com/UPA General Liability Insurance Application: https://forms.gle/F9YoTWNQ8WnvT4QBAPool Guy Coaching GroupJoin an exclusive network of Pool Service Technicians to access the industry’s leading commercial general liability insurance program. Protect your business.Premium is $64 per month per member (additional $40 for employees and ICs)$59 per month for Pool Guy coaching Members - join here! https://www.patreon.com/poolguycoachingLimits are $1,000,000 in occurrence and $2,000,000 in the aggregate - Per member limits     [ $1,000,000 per occurrence and $4,000,000 aggregate available for $75 per month ]$50,000 in HazMat Coverage - clean up on-site or over-the-roadAcid Wash Coverage - Full Limits