On this episode we speak to John Pastorello, CEO of Refrigeration Technologies about the science behind Big Blu soap bubbles and other products such as Nylog and Viper Wet Rag. Save 8% on your purchase at https://www.trutechtools.com using promo code knowitall at check out. See preferred testo pricing link below. https://docs.google.com/forms/d/e/1FAIpQLSeOC8oQB97trj6XKDWRylM2ILFlnVjYG1GnTT2lRWT8-K4weQ/viewform Visit https://www.hvacknowitall.com for articles and tips. Check out the HVAC Know It All YouTube channel. https://www.youtube.com/channel/UC-MsPg9zbyneDX2qurAqoNQ/videos Testo https://www.testo.com/en-US/ Navac https://navacglobal.com Yellow Jacket https://yellowjacket.com Cool Air Products http://www.coolairproducts.net Refrigeration Technologies https://www.refrigtech.com Housecall Pro https://www.housecallpro.com/hvacknowitall

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