506 reputation
46
bio website ericlippert.com
location Seattle, WA
age 41
visits member for 2 years, 5 months
seen Mar 25 at 15:20

Eric Lippert develops C# analyzers at Coverity. During his sixteen years at Microsoft he was a developer of the Visual Basic, VBScript, JScript and C# compilers and a member of the C# language design committee; he is now a C# MVP. He is on Twitter at "@ericlippert" and writes a blog about programming language design and other fabulous adventures in coding at http://ericlippert.com.


Mar
13
comment How can I increase water pressure after installing dual-head shower?
I installed a similar system a couple of days ago and am having a similar problem, so thanks for asking this so I didn't have to! Some on the internet suggest removing the flow restrictors which are immediately on the inside of the showerhead. I found this did not help appreciably in my case but you might give it a try.
Jan
31
comment If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
@derobert: Correct, though this is a subtlety that I thought might not be worth digging into given that the original poster is still sussing out the difference between voltage and current. A good analogy is that voltage is like height. "Absolute" height - distance from the center of the earth - is a completely inconvenient measure. Height as we use it conventionally is the difference between two things, called the "bottom" and the "top". When we don't explicitly say what the bottom point is then you have to know whether the speaker intends mean sea level or local ground level or what.
Jan
28
awarded  Commentator
Jan
28
comment Why little holes/dots when I apply joint compound?
And your initial job looks reasonable. Let it dry thoroughly; maybe aim a fan at it if you want to speed it along. Sand it down and do a second and then third coat, sanding between. Stir the compound thoroughly before you put it on; that will help.
Jan
28
comment Why little holes/dots when I apply joint compound?
I would add to the good answers that: if you're spackling, use spackle. If you're joining wallboard, use wallboard joint compound. They're not the same thing. Spackle doesn't shrink when it dries but is hard to feather around the edges of a large hole. Joint compound does shrink and is intended to be applied over large areas in multiple coats.
Jan
28
comment If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
@user19512: You did confuse voltage with current again but you are on the right track. Remember, the voltage on the neutral is zero; it's the current you have to worry about because its the current that can make the wire get warm enough to burn. An edison circuit can lead to overcurrent on the neutral because most people think that the neutral should be the same gauge as the hot; but that's only true if the current is the same. Worse: the overcurrent protection -- the breakers -- is on the hots!
Jan
28
comment If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
@Tester101: So clearly you know why an Edison circuit (ie, two hots one neutral) is dangerous; I'm wondering if the original poster can suss out why.
Jan
28
comment If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
@Tester101: You are right. Let's suppose that we're in a normal US household with 240V one phase power split in half, so half the panel appears out of phase with the other half. What are the possibilities?
Jan
27
revised If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
added 155 characters in body
Jan
27
answered If neutral carries current back to the breaker panel, why doesn't it need to be connected to a switch?
Oct
27
awarded  Yearling
Oct
27
awarded  Yearling
Dec
2
answered What did I do wrong??! Wiring error is tripping circuit breaker
Dec
2
comment What did I do wrong??! Wiring error is tripping circuit breaker
Also, obviously this situation is dangerous. The breaker is tripping before the house burns down due to overcurrent, but the breaker might not trip if your wiring fault happens to be dumping current to ground through a person or the wiring fault is causing a fire due to sparking. I would be keeping the circuit unpowered until you diagnose and fix the situation.
Dec
2
comment What did I do wrong??! Wiring error is tripping circuit breaker
Can you clarify a couple of things: (1) do all three switches (A, B1 and B2) control the same light? (2) Why did you replace switch A in the first place? (3) multi-way switches have a great many different possible configurations; can you describe the configuration of yours? For example, does power from the panel go to switch A, or one of the other switches? Does power to the light come from switch A or one of the other switches. And so on.
Nov
11
awarded  Guru
Oct
27
revised Why is this box constantly tripping?
added 522 characters in body
Oct
27
comment Why is this box constantly tripping?
@hemp: You got it.
Oct
27
awarded  Good Answer
Oct
27
awarded  Mortarboard