how is Americium 241 used in smoke detectors? Help me in science class. I SUCK at science!!!?
Pipe dope for galvanized fittings. The threads are cut quite rough and on a taper so thin teflon doesn't get r done.
it is opaque but given its reflective surface a mirror is capable of giving off a variety of colors under different light densities
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Here are the basics for working with steel pipe - galvanized or black. First, always use 2 wrenches when you put joints together. One holds the fitting and the other holds the pipe. NEVER tighten a nipple or fitting against other installed piping. Otherwise you cannot get a very tight joint and you might damage the already made joint. Torque is king and you probably can't over tighten it unless you have excessively large pipe wrenches. Remember too, wrenches and most pliers are only designed to turn in one direction and you should pull them toward each other when you are tightening. Teflon tape should work if that is what you have at hand and you have put enough on. Make sure you wind it with the tail end facing the opposite direction that you screw it on, i.e. if you are holding the pipe in your left hand you would wrap it away from you on top. If not, it will bunch up or slide off the threads when you are putting things together. Now that you have smashed teflon into the threads you might take it apart and wrap it a few more times with tape for a better seal. Your main problem may be the Chinese fittings you bought at Depot. I occasionally buy some there and have had several issues with poorly cut fittings, some wouldn't even allow you to thread nipples straight in, some have splits and I've even seen some with no threads cut at all. Inspect them carefully when you buy them for notched, broken, split or uneven threads or fitting bodies. Test fit nipples and fittings with pieces off the shelf. Good Luck!
