17,670 reputation
14396
bio website gregmaclellan.com
location Canada
age 33
visits member for 4 years, 5 months
seen yesterday

Professional software developer since 2000. Have worked on many open-source projects, and am currently employed as a senior web application developer.


May
18
comment How do I fix a Well Pump that is on Constantly?
It does not sound like a problem with the pressure tank to me. When the pre-charge is too low, bladder broken, or the tank is water-logged, you get rapid cycling as you use the water (since there is no buffer). I am not sure if the tank is 100% full of water what will happen, as 1) I've never had a pressure switch hooked up to a pump without a pressure tank, and 2) In many summers of working on water systems, I've never seen a pressure tank with absolutely NO air. Even a tiny amount of air will provide pressure resistance needed to make it at least rapid-cycle.
May
18
comment How do I fix a Well Pump that is on Constantly?
The pressure gauge is essential for diagnosis, so fix that first. There is possibly a problem with your pressure switch, your pump may not be working correctly and generating enough pressure, or there could be a leak in the line somewhere. Once you fix the pressure gauge, close the valve to the rest of the house and update this post to say what's happening with the gauge. If it's getting higher than 60psi (or whatever the setpoint is if you know it) and not shutting off, your pressure switch is either jammed or just adjusted too high.
May
17
answered How can I replace a pressure gauge on a well pump?
May
9
answered What would cause air to be pushed into pipes from a well tank?
May
8
comment How do I design and build a simple, sturdy, and affordable table?
What material are you using to build the table? What is the weight load it is holding? You need to ensure that the table is strong enough and won't sag. Do you want to attach it to the walls (more like a big shelf) or have it freestanding? Should the two tables be standalone? Do you have limitations on where to put or avoid table legs? Do you have a style in mind, and are aesthetics important? There are literally thousands of ways to approach this, so knowing some constraints and more requirements (and you asking more specific questions) would help provide [better] answers.
May
8
comment How can I reconnect home ethernet that has been terminated outside?
A picture might help. If I understand correctly, all the wiring is terminated outside? Sounds like the electrician didn't know what he was doing (not surprising, most don't know anything about networking). Can you see inside the house where the cables exit? Any chance you can pull them back inside? In case you do need to put a switch outside, what is your climate like (min/max temperature range)?
Apr
30
comment How can I connect two indoor ductless A/C's to one compressor?
The capacity of the unit is obviously a concern. A compressor designed for one indoor unit is not likely to work as well with two. I know you've said that you are only going to use one at a time, but you should also consider what to do when you resell the house. A home inspection may pick up on that, and a smart buyer will want that to be fixed (either by subtracting money or getting you to buy a new unit).
Apr
30
revised How do I drill a hole in a shelf without going all the way through?
edited title
Apr
30
comment How do I drill a hole in a shelf without going all the way through?
I like this solution over using a drill stop simply because it's effectively no-cost (you likely have tape on-hand). I agree with the potential drawbacks mentioned though, so like always, the best solution depends on the exact situation. If you're drilling a couple approximately 1/2" deep holes into a 1" surface, the tape slipping a bit is not a big deal - it's just there to guide you. If you're drilling 50 holes that are all precisely 7/16" deep into a surface that's 1/2" thick, tape (and a hand-held drill) is probably not going to work out very well.
Apr
30
comment is it possible to do a 3 way switch if power source is in the second switch?
Should also note: when you're using a white wire as hot in this way, you must mark it as hot: this is done using red or black marker or electrical tape. By code white means neutral.
Apr
30
comment is it possible to do a 3 way switch if power source is in the second switch?
When you say "you need 4 wires", like @staticsan I read that as 4 + ground. Ground has to go everywhere, so it is generally not mentioned. This is a standard convention- For instance, if you go buy your standard NMD/Romex "14/2" wire, you'll get 2 14AWG conductors (white/black) plus an unshielded ground. Likewise, 14/3 (which is probably what will be used in this situation) refers to 3 conductors (probably black/white/red) plus a ground (unshielded or green).
Apr
27
comment Are galvanised steel pipes suitable for supplying hot water?
I'm having a hard time finding good citations, but: it is thought that hot water affects the galvanized coating and increases the rate of corrosion and build-up inside the pipe. Galvanized pipe is apparently no longer allowed by code in Canada for (treated?) potable water (inside, anyway). Depending on the chemical composition of your water (pH, dissolved minerals) it may react with the pipe, causing other contaminants (a concern mostly if you are not on city water). Though you don't typically drink shower water, it does get absorbed into your skin and dispersed into the air (and your lungs).
Apr
27
reviewed Approve How far can I move ceiling joists up?
Apr
23
answered Is it safe to run a USB cable inside a wall?
Apr
23
revised What are the pros and cons of different types of smart switches (that are on the US market) ?
added more to ubp, insteon
Apr
12
answered Can I run this sump drain underground?
Apr
3
awarded  Taxonomist
Apr
3
reviewed Approve At a 6' span, how much can an SPF 2x4 turned on 3.5" end support?
Mar
27
awarded  Enlightened
Mar
27
awarded  Nice Answer