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That's exactly why I use 5w30 synthetic in my compressor. My compressor sits in a loft with the drain valve (a 1/2" ball valve) accessed by a handle hanging underneath it next to the drill press (a place I walk by a lot when I'm in the shop). I'm sure to run the drain at least once every time...

You're not doing any significant air grinding on 7CFM. A 2" air angle grinder uses about twice that. Most of the ratings you see that show 4-8 CFM are assuming a 25% duty cycle. If you're ok with 1 minute of grinding and 3 minutes of waiting for your compressor to catch up, then that's fine I...

Re-read my post. Pilots routinely do exactly that in well under an hour and are most certainly expected to maintain peak performance. I'll freely admit I couldn't make that cut, but it's not an unreasonably high bar. It's also about the limit before you need to acclimatize. The danger is...

To put this in perspective, 16% O2 at sea level is a partial pressure of 122 mmHg of oxygen. That's the same oxygen partial pressure outdoors (21%) at an altitude of 7900 feet (more than what's found on most commercial flights except perhaps the 787 Dreamliner). There are plenty of cities at...

Amerex 506b is a non-glycol based antifreeze for water based fire extinguishers that's a much better idea, and is good down to -40F. Also, lots of RV antifreeze has alcohol in it.

CO2 is a reasonable concern, but you're blowing it out of proportion. Also, every time someone who knows what it is brings it up on the internet, 80% of the people in the conversation don't even understand the difference between CO2 and CO, even when it's repeatedly pointed out in the thread...

Neither of those will do anything to a smoldering pile of sawdust. CO2 (in any size) carries a zero "A" rating, and halotron only carries an A rating in larger sizes. I can't keep a can of water in my unheated shop, so I have ABC dry chem extinguishers.

AFCI breakers don't have the best reputation, because they're known to false trip and fail. On the bright side, they err on the side of safety, but that still upsets some people when they can't reset a failed breaker and they want power now. I don't see a compelling reason to re-wire my house...

Monoammonium phosphate is one component of a pH down buffering fertilizer I use in my hydroponic setups (in combination with monopotassium phosphate), but I think you'd be better off spreading boric acid powder than MAP.

An AFCI should trip when it senses the electrical signature of an arc on its connected circuit (somewhere else in your house, where arcing is much more dangerous). I don't know what would happen when the arc is on the bus, but that's not within their design requirements.

No offense taken. But for the first point I highlighted, even with your eyes closed, it should be relatively easy to feel when the bit is dragging on the walls of the hole and aligned correctly. And even dragging the helical flutes on the sides isn't going to remove material without some...

The source doesn't matter, but what I'm reading online, QO has tin plated copper bus bars (tin plated aluminum neutral and ground bars), while Homeline uses tin plated aluminum bus bars. I wouldn't touch bare unplated copper or bare aluminum bus bars. Bare copper is easy to spot. Recognizing...

Not if you don't go all crazy with a power drill. Drill straight down and you won't touch the sides that were already tapped, and the drill will only be cutting by the tip.

You drive the helicoil in by turning the breakaway tab at the tip, because turning it into the hole leads the spring shape to get smaller. If you turn that in reverse, it expands the spring, so it can jam. But don't fear. Just grab the outside end of the spring with pliers and use that to...

Nothing about this suggests a Zener diode is the answer, but yeah, I've had diodes fix issues like this where one circuit accidentally back-feeds another. In one car I had, the alarm circuit honked the horn and flashed the parking lights. Everything seemed fine when I hooked it up and drove to...

Ok, so you have a bypass meter pan (current requirements for some time). Is there a disconnect or breaker outside by the meter? mm0822 has the best plan of action. As for re-using breakers, the more I think about it, the less I like the idea. You have multiple bus positions that are failing...

At the temperatures we're talking about, the roof is likely to fall first.

I think there are a few issues here, but we should start with setting expectations where they belong. Low. The all wood barrier between the floors is going to be pretty transparent to sound. Adding layers of wood doesn't buy much. The MLV layer is a good idea. It will go pretty far to...

LOL, I think at 1418°F, that safety wire would give you a rather unsafe burn. But in all seriousness, normal grade neodymium magnets are good to 176°F. That's still plenty under a roof, and ordinary fire sprinkler heads should pop below that. I used SmCo magnets to attach the drip pan to my...

Difficult, but far from impossible. Attacks have been demonstrated, and are used in the wild. Maybe not all too often, but they do exist. A better alternative to killing GDO power while you're away (I flip off the breaker if I'm out of town), would be to deadbolt the door. There are...