CPI exam — do pool inspections done during full home inspections count toward experience hours?

74% is comfortable to sit at 6 weeks out — I passed at 77% starting baseline after about 5 weeks of prep. The commercial vs residential chemical compliance questions are worth a focused study session. There are only about 6–8 specific threshold values you really need to nail down.

The chemical balance questions got me on my first attempt (failed with 69%). I made flashcards for every chemical parameter — pH, chlorine, cyanuric acid, total alkalinity — with the acceptable range and the corresponding remediation step. Passed the second time with 81%.

Passed CPI last year. InterNACHI told me via email that pool/spa inspections done as part of full home inspections do count toward the experience requirement as long as they're documented. I kept a simple spreadsheet with date, address, and client name and that was accepted.

For documentation, InterNACHI accepted my electronic inspection reports with timestamps. I didn't need client signatures specifically — just proof the inspections happened. Keep your own records because their verification process can take a few weeks.

I went through this exact situation last year and actually failed my first attempt partly because I'd underestimated how much the experience verification piece matters. Short answer: those 40 inspections can count, but you need documentation that specifically calls out the pool/spa component as a distinct inspection, not just "included in home inspection." My supervising inspector had to go back and amend several of my inspection reports to clarify that before InterNACHI accepted them.

What really helped me pass the second time wasn't just fixing the paperwork though. I spent a lot more time on the technical side I'd glossed over, especially water chemistry. I didn't realize how heavily the test leans on that stuff until I failed. Practicing with resources like cpi water balance chemical testing questions made a huge difference because it's not intuitive if you're coming from a general home inspection background. Good luck, you've got the hours, just get them documented right.