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stopper

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https://www.youtube.com/embed/U-Q-_1rG4ZI hi guys and gals froggy here I'm gonna get you caught up to speed I was replacing this pop-up because they get rusty around the edges here I'll show you one that's rusty so that's because the original ones this is about 15 years ago were made from the head metal that would rust in this this piece here not this but this piece here and the ones that make now are plastic with this you know chromey looking finish on it which is also a plastic some kind of plastic it's it's like you see on bumpers on cars now or grills on cars they're not metal anymore they're plastic they don't rust and they save weight anyway I decided to shoot this for you but I've got it half way done but I'm gonna review for you what I did so you know first thing get all…

https://www.youtube.com/embed/oCf7_EsAj68 today we're going to use a do-it-yourself that tub drain removal tool to remove the bathtub drain from an old bathtub so we start by removing the old drain plate and then my purpose for doing this is I want to replace the old-style drain plate with a pop-up stopper so in order to do that we have to remove this collar right here from the drain and so instead of ordering a special extraction tool I've actually created my own ax to It Yourself extraction tool that uses a noodle needle nose pliers and an adjustable wrench so what we do is we take put the needle nose pliers down in the hole on the holes neither side of the collar so they're as deep as you can get them and fairly symmetrical and then we take they just wrench and we torque on it to remove it…

https://www.youtube.com/embed/VRWRmIEHr3A Some of the best moments of my life have happened in labs. Also some of the worst. Like the time that I took a week to prepare a sample for NMR analysis, and then a classmate washed out the vials while I was sleeping for the first time in 3 days. Because he "couldn't find anything else" to use for his experiment. Interestingly, that resulted in my personal most significant laboratory injury. We all have one; I cut my hand while punching a paper towel dispenser in frustration. No one ever brought it up again. Today, we're going to talk about how to avoid injury in the lab, and some good techniques for using laboratory equipment correctly.First two lessons already learned: never wash out a vial you aren't familiar with and don't punch paper towel dispensers. [Theme Music] Let's start with some very basic safety stuff; your hair. If…