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.


Nov
19
revised Why is my shower not draining, even though there is no physical blockage?
edited title
Nov
19
revised How can I safely remove stick-on tiles that are on top of asbestos tiles?
edited title
Nov
19
revised How can I repair this rotted section of wood siding?
edited title
Nov
19
revised Why does my kitchen sink not drain properly after I don't use it for a while?
edited title
Nov
19
comment Why does my kitchen sink not drain properly after I don't use it for a while?
A symptom of this would be that it would drain alright with a bit of water (such as if the tap was running), but not if a large quantity of water was put down the drain at once (such as when draining the whole sink). This may help @Lauren diagnose the issue. (Also in addition to clogged vent, consider: improperly installed vent, or vented using a 'cheater valve' which is now malfunctioning)
Nov
19
comment Why is my shower not draining, even though there is no physical blockage?
Sounds like a venting issue. Since you have it torn up, can you see where the vent is? Local code can vary, and the distance will depend on pipe size, but IIRC for 2" pipe the vent must connected be within 5' of the trap.
Nov
19
comment How can I determine what size pressure pump and tank do I need?
To answer your question, in order to size a pump you need to know the total dynamic head (TDH) and the flow rate you want. TDH is basically the vertical distance you're pumping, plus friction loss from the pipe. Friction loss depends on size of pipe plus flow rate. For example, if you want 13 US GPM through a 1" poly pipe, you're looking at TDH of about 91 ft (28 meters) -- there are charts for this. Looking at a couple pump sizing curves, looks like a 1/2 HP pump would work (but you need to check the curves for the pump you want to use, based on your TDH, flow rate and pipe size).
Nov
19
comment How can I determine what size pressure pump and tank do I need?
You don't need a pressure tank, you can literally just have a submersible or jet pump go into a pipe that is open at the other end. Probably not a bad idea to have a check valve if there's not one in the pump since otherwise the water in the pipe will drain back when turned off (not a big deal, just means it'll take longer when the pump does come on). The pump would be controlled by a float switch.
Nov
18
comment well pump keeps turning on and off every few seconds
Aside: You should really fix the electrical wire that is very incorrectly terminated in the pressure switch. It is a fire and shock hazard, not to mention violating electrical code. There should be a box connector, and the wire should not be stripped outside of the pressure switch (create a new question here if with a picture attached if you'd like more specific help on how it should be done).
Nov
17
comment How to pull toothbrush out of the sink?
Agreed with @Ecnerwal: if you have to cut it apart to get the toothbrush out, take the opportunity to install a new standard trap where the U-bend is easily removable.
Nov
17
comment How can I repair a ceiling fan that hums, but doesn't turn?
Try opening the cover and spinning the fan by hand (with it off, of course). Does it spin freely? I've never personally heard of this with bathroom fans, but there's also a chance with any electric motors there is a 'dead spot' and moving it out of the spot will let it run (until, of course, it stops in the dead spot again). May be the motor windings are wearing out, the brushes/commutator are dirty. Whether this is serviceable or not depends on the motor/fan and your skill, and of course has to be weighed against replacing.
Nov
13
comment Can you terminate more than one common on the furnace C terminal?
Technically speaking, if the transformer in your furnace is too small (eg: JUST big enough to power the control board, relays, and whatever else is already connected) then it's possible that the thermostat could push it over the edge, causing your furnace to not work and/or behave strangely. However, the amount of power we're talking about here is pretty small. Unless you're connecting a thermostat with a monster color touchscreen to a >=20-year-old furnace/air handler, chances are you won't have an issue.
Nov
13
comment How do I connect a ceiling fan without a light kit?
What wires are in the switch that control the fan, and how are they connected? Green wire in the ceiling box is throwing me off a bit, I would have guessed you have a 14/3 between the switch and fan, but that should be red, black, white, and bare copper.
Nov
13
revised Why does a subpanel need separate ground and neutral?
added 226 characters in body
Nov
13
answered My attic unit already has a wire connected to C, can I still connect a wifi thermostat?
Nov
13
revised My attic unit already has a wire connected to C, can I still connect a wifi thermostat?
title, punctuation
Nov
12
comment Could wiring a dryer incorrectly cause the control board to be destroyed?
With luck, you just blew a fuse in it, but there is a definite possibility something is fried, especially if any of the magic blue smoke escaped.
Nov
12
revised Why does a subpanel need separate ground and neutral?
added 237 characters in body
Nov
12
comment How can I run cables along a concrete wall?
An RJ-45 crimp tool can be found online for $10-20 (though you'll spend another $10 on bad crimped ends while you learn how to use it) and once you have that, bulk cable is very cheap and you can make any length you want (plus it fits through a much smaller hole without an end on it). Alternatively, there are ethernet-over-power adapters which are a decent option if you have a dodgy wifi signal.
Nov
12
revised Why does a subpanel need separate ground and neutral?
added 3 characters in body; edited tags; edited title