Cal Hypo Tablets in Real Pool Situations

Show Notes

High cyanuric acid can turn a perfectly maintained pool into a weekly battle where chlorine “won’t hold” and algae feels one step away. I walk through a practical option many pool pros consider when CYA gets out of control: switching from trichlor tablets to cal hypo tablets. The promise is simple, no more stabilizer added with every tablet, but the decision is not as clean as it sounds.

We dig into the real chemistry behind both products. Trichlor’s convenience comes with a built-in byproduct that keeps stacking, while cal hypo avoids CYA but adds calcium hardness and tends to push pH up, which can increase muriatic acid use. I also explain why dosing is not one-for-one: cal hypo tablets are typically lower in available chlorine than trichlor, so you often need more tablets to maintain the same free chlorine level, and that can make the seasonal cost noticeably higher.

Then we get into the “field” problems that determine whether cal hypo works for your route or your backyard pool. Safety is critical: cal hypo and trichlor cannot be used in the same feeder. I also cover why hot-water regions can burn through cal hypo tablets in a day or two, leaving you with no slow-release sanitizer for the rest of the week, plus the current state of cal hypo feeders and floaters.

If you’re deciding between draining, staying on trichlor, switching to cal hypo, or blending tablets with liquid chlorine, this gives you a clear way to do the math and avoid surprises. Subscribe for more pool chemistry and service strategies, share this with a pool owner who’s fighting high CYA, and leave a review with the biggest water balance problem you want solved next.

• why trichlor tablets drive cyanuric acid higher than most people expect
• when cal hypo tablets make sense for high CYA pools
• why you must never mix cal hypo with trichlor feeders
• skimmer use versus dedicated cal hypo feeders and why flow matters
• why hot climates can dissolve cal hypo too fast for weekly service
• available chlorine differences and why dosing is not one-for-one
• cost realities plu

Send us Fan Mail

Support the Pool Guy Podcast Show Sponsors! 

HASA 
https://bit.ly/HASA

The Bottom Feeder. Save $100 with Code: DVB100
https://store.thebottomfeeder.com/

Try Skimmer FREE for 30 days:
https://getskimmer.com/poolguy 

Get UPA Liability Insurance $64 a month! https://forms.gle/F9YoTWNQ8WnvT4QBA

Pool Guy Coaching: https://bit.ly/40wFE6y

Support the show

Thanks for listening, and I hope you find the Podcast helpful! For other free resources to further help you:
Visit my Website: https://www.swimmingpoollearning.com
Watch on YouTube: https://www.youtube.com/@SPL
Podcast Site: https://the-pool-guy-podcast-show.onpodium.com/

UPA General Liability Insurance Application: https://forms.gle/F9YoTWNQ8WnvT4QBA

Pool Guy Coaching Group

Join 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/poolguycoaching

Limits 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-road

Acid Wash Coverage - Full Limits