[RE-wrenches] Wire protection for ground mount

2015-04-17 Thread AE Solar
Hey Wrenchers, Does anyone have suggestions for netting/protecting wires behind a ground mount (for keeping hands out of there...not animals). I have seen quite a few home-made'ish looking options on systems around here (screwing hardware cloth onto the back of frames/racking, etc) but am looking

Re: [RE-wrenches] Wire protection for ground mount

2015-04-17 Thread Matt Sherald
Adam, I've used aluminum perforated sheet metal in the past. It matches the other aluminum on the ground mount and it can be zipped up with self drilling screws. Looks pretty sharp when it is done - kinda like it was meant to be there all along. -Matt On Fri, Apr 17, 2015 at 7:20 AM, AE Solar

Re: [RE-wrenches] Wire protection for ground mount

2015-04-17 Thread Glenn Burt
Just be sure to properly bond it to ground per 250.8 & 12, and 250.4. Sincerely, Glenn Burt Sent from my 'smart' phone so please excuse grammar and typos. -Original Message- From: "Matt Sherald" Sent: ‎4/‎17/‎2015 9:08 To: "RE-wrenches" Subject: Re: [RE-wrenches] Wire protection for gro

Re: [RE-wrenches] Wire protection for ground mount

2015-04-17 Thread Dave Click
I think someone here long ago recommended solarscrim.com; when I recommended it to three contractors I heard: 1) "awesome, I just bought some and I'll use this on every project!" 2) "too expensive, I'm getting some tennis court screening on my own and doing it myself." 3) "too expensive, I'm g

Re: [RE-wrenches] Wire protection for ground mount

2015-04-17 Thread Jason Szumlanski
What are you screwing the aluminum into? Any chance of getting a picture? On Fri, Apr 17, 2015 at 9:08 AM, Matt Sherald wrote: > Adam, > > I've used aluminum perforated sheet metal in the past. It matches the > other aluminum on the ground mount and it can be zipped up with self > drilling sc

Re: [RE-wrenches] Apprentice

2015-04-17 Thread Jason Szumlanski
I like this a lot, and have used similar language. The attic stuff can't be overstated. The professional appearance thing brings up another question... how do you reconcile wanting your installers to look professional with swimming through insulation? One is seemingly impossible with the other. It'

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Chris Mason
I'm not sure how the term is used in America, but generally "apprentice" does not mean cheap labour. An apprentice program should be an education path to a qualification with state recognized standards, such as Electrician or Plumber. if you just want inexpensive labour, that's not an apprentice, t

Re: [RE-wrenches] Apprentice

2015-04-17 Thread Glenn Burt
Tyvek coverall comes to mind. It is what the insulation pros wear. Another option would be a simple Dickies coverall – can be worn with minimal underclothing and changed into and out of at jobsite (in a discrete location).. -Glenn From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wre

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Glenn Burt
Unions adopting the term notwithstanding, Merriam-Webster defines it as such: Full Definition of APPRENTICE 1 a : one bound by indenture to serve another for a prescribed period with a view to learning an art or trade b : one who is learning by practical experience under skilled workers

[RE-wrenches] flushing DHW collectors

2015-04-17 Thread Kirk Herander
Hello, I have an older 10 collector system in which the glycol has stagnated due to a defective collector sensor, apparently for some time. I was able to drain the collectors, the cooked glycol is black with a good bit of sediment. I tried to flush the system with water but my ½ hp utility pump

Re: [RE-wrenches] Apprentice

2015-04-17 Thread Jason Szumlanski
Given the attic temperatures around here and the propensity of Tyvek to get snagged on roof nails, I don't think these are great options for us. It's hard enough wearing long pants and sleeves in Florida, which is the minimum I require for attic work. I've seen insulation guys in short sleeved shir

Re: [RE-wrenches] flushing DHW collectors

2015-04-17 Thread Glenn Burt
When I was installing them and using Tom Lane’s book, he recommended a solution of TSP be used for cleaning lines prior to charging with HTF. 1 cup per gallon of water is what I read. He suggests running it for 30 min, then flushing with clean water for another 30 before charging with HTF. -Gle

Re: [RE-wrenches] flushing DHW collectors

2015-04-17 Thread Christopher Warfel
We have had luck using a 25% solution of white vinegar, pumping the solution into the system until the pump cannot overcome the friction, capping the inlet(where the pump was pumping), make sure the outlet is open, let the sun superheat the solution and blow the obstruction out through the outl

Re: [RE-wrenches] flushing DHW collectors

2015-04-17 Thread August Goers
Kirk, Any idea what kind of glycol was in the system? I’ve seen systems stagnate for several years where the propylene glycol was still fine if it was good quality. I’ve seen people use the automotive grade propylene glycol such as Sierra brand antifreeze with poor results. I think Glenn’s su

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Ray Walters
Hi All; Thanks for the replies so far; I apologize for my misunderstood attempt at humor in my initial post. I agree with Chris here, I hire contract labor all the time, but an apprenticeship is different. Laborers top out pretty quickly and just aren't capable of learning the nuances of of

Re: [RE-wrenches] flushing DHW collectors

2015-04-17 Thread Jerry Shafer
We will use a vinigar water solution but you will need more volume fill it and run it for some time then flush, repeat as nessesary. Cooked glycol is messy to clean. Jerry On Apr 17, 2015 7:21 AM, "Kirk Herander" wrote: > Hello, > > > > I have an older 10 collector system in which the glycol has

Re: [RE-wrenches] flushing DHW collectors

2015-04-17 Thread Dana
Lowe’s has a portable irrigation pump that I will buy when mine glycol pumps die. My brother-in-law who does a lot of glycol pumping for snowmelt in ID came up with this. UTILITECH – 1 HP – Portable lawn pump, Part # 0024840 – 120 volt it pumps 100% glycol like no tomorrow. Easy to carry frame

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Dana
Finding someone who is or has lived off grid helps a lot. Dana Orzel Great Solar Works, Inc - NABCEP # 051112-136 E - d...@solarwork.com - Web - solarwork.com O - 970.626.5253 C - 208.721.7003 "Responsible Te

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Ray Walters
I agree, but the offgrid lifestyle often makes travel issues and work ethics more difficult. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 4/17/2015 3:34 PM, Dana wrote: Finding someone who is or has lived off

Re: [RE-wrenches] Apprentice interview

2015-04-17 Thread Chris Mason
The US currently puts little value on craft versus academia, now everyone smart is expected to go to college. Consequently there is a stigma on vocational education. When I did my electrical apprenticeship in Ireland, we did two years of college, one year of training school and one year in the fi