A chemical brand doesn’t survive since the 1960s by accident and Hasa’s acquisition of Biodex is a sign these formulas are sticking around for the long haul. We talk through why this partnership is a big deal for pool service pros, then get practical about the Biodex products that earn repeat use on real routes, not just on a spec sheet. If you’ve been hunting for reliable pool chemicals, proven stain removers, or safer ways to handle an acid wash, this one is built for you. We start with Biodex Plaster White and Bright, an acid wash additive that changes the game by thickening the acid and water mix. That thicker, slow-moving coating helps you cover plaster more evenly, boosts brightening, and can reduce fumes while you work. We also share a straightforward mixing approach and how this small tweak can make an acid wash feel more controlled and consistent. Next, we dig into Biodex Aquadex 50 Stain Off and the kinds of stains it can lift, from light brown discoloration to ugly streaks that can show up after adding certain salts with anti-caking additives. You’ll hear how to apply it, why brushing matters, and the biggest “don’t ignore this” warning: stain treatments can crush your free chlorine if you overdose, and pH in the low 7s can be the difference between mediocre and impressive results. We also cover Biodex 300 Tile Cleaner and why it’s one of the strongest options for calcium scale, along with the handling cautions that protect decks, plaster, and even mosaic tile. We wrap with notes on algaecides, foam control, enzymes, and where to actually find Biodex products online without getting lost. Subscribe for more field-tested pool service tips, share this with a tech who fights stains, and leave a review with your toughest pool chemistry question. We break down why Hasa acquiring Biodex is good news for pool pros and why these long-running chemicals still earn a spot on a service truck. We share the Biodex products we trust most, how we use them in the field, and the safety and water balance details that decide whether they work or backfire. • why the Hasa and Biodex partnership matters for availability and product continuity • Plaster White and Bright as an acid wash additive that thickens the mix for better coverage and fewer fumes • Aquadex 50 Stain Off for metal and organic stains, including a real-world salt staining save • the chlorine drop risk with stain removers and why correct dosing matters • pH targets that improve stain treatment performance • Biodex 300 Tile Cleaner strength, handling cautions, and when to keep it away from employees or delicate surfaces • algaecide options including Skillet, plus foam and surface film considerations • Foam Down use cases and the reminder to fix the cause of foaming, not just the symptoms • where to find Biodex products online and how to navigate their product listings Are you a Pool Service pro looking to take your business to the next level? Join the Pool Guy Coaching Program. Get expert advice, business tips, exclusive content, and get direct support from me. I'm a 35-year veteran in the industry. Whether you're starting out or scaling up, I've got the tools to help you succeed. Learn more at swimmingpoollearning.com. Send us Fan Mail Support 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/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