Re: [RE-wrenches] Design help for solar water pumping application

Hey Lee, Allan is right in that the WINcaps software is a lifesaver and FREE! Not to contradict Allan, but I do not see a feasible way of using two float switches in separate tanks with only one pump controller. Also, the 3000' distance is a little far-they usually recommend a max distance of 1

Re: [RE-wrenches] Poly v. Tripolymer

Marco, Polyurethane definitely will not work on a tar and gravel roof. Use Henry's 204 Plastic Roof Cement. Spray Henry's Primer on any vertical metal surfaces (e.g. posts) to which you want the cement to bond. Mark Byington Cobalt Power Systems, Inc. __

Re: [RE-wrenches] Propane Generator

Hi Ezra, I got out my Murphy's Law book, and found the relevant part in Chapter IV, Section 3, Sub-section 21, Paragraph 12, lines 9-14 Brian Teitelbaum AEE Solar -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On

Re: [RE-wrenches] Propane Generator

Hi, I find the inverter generators by Honda awesome. During our northwet winters I have to charge a couple times a week. The fact that engine speed and attendant fuel consumption relate directly to SOC saves me huge amounts of fuel. I don't even mind doing the finish charge part of the cy

Re: [RE-wrenches] Battery cable rating

The Cobra X-FLEX is described as being acid resistant on their website - see the section included below: Specifications This product was designed to meet or exceed all test requirements called for by the Underwriters Laboratories and the National Electric Code, and is recommended for use in

[RE-wrenches] poly v. tripolymer

I've got a tar-and-gravel asphalt roof and will be attaching stand-offs for my mounting rails. I'm trying to decide between a good ole polyurethane and a tripolymer (like Geocel). Any leanings one way or the other? thanks, marco ProVision Solar, Inc. Marco Mangelsdorf, President 69 Railro

Re: [RE-wrenches] Design help for solar water pumping application

Lee, You can get Grundfos' WINCaps software from your RE or pump supplier; some will run the sizing for you (Jeremy at Conergy does for us). I didn't check your head and flow, but I would expect that's about your only good pump choice at that head. Add a tracker if you need greater summer output;

Re: [RE-wrenches] Design help for solar water pumping application

Hi Lee, I would think a "snap-shut" valve, such as a Hudson valve in each tank and a pressure switch hooked up to the float terminals on the controller would work well in this situation. Good luck! Mark Dickson Oasis Montana Inc.

[RE-wrenches] Design help for solar water pumping application

Solar Water Pumping Wrenches, We normally don't do solar water pumping but a friend asked for some help designing his system. He has one well and two 5,000 gallon reservoirs to fill up. The average usage is expected to be about 2,000 gallons per day but may be higher in the summer. The tanks wi

Re: [RE-wrenches] Battery cable rating

William, Cobra Wire & Cable, PO Box 790, Hatboro, PA (215) 674-8773 Haven't bought any in a while. Ed Jesko, sales. E-Mail: e...@cobrawire.com UL listed flex cable. We have seen no problems with acid on this cable and have used it for years. Dave From: re-wrenches-boun...@lists.re-wre

Re: [RE-wrenches] Propane Generator

I too have had pretty good luck with koehler. I like to run AC power back out to the genny for batt. charging and maybe a carb base heater (or some other heating goodie). I also like to set up a Xfer switch at the genny (as a junction box), so if the koehler does have a problem, i can run a smaller

[RE-wrenches] Battery cable rating

Friends: We are being required by a local building department to upgrade the type of battery cable we are using. We are using a cable listed by SAE for automotive applications. It is abrasion, acid and fuel resistant. We like the cable and think it is entirely adequate, but it does not have

Re: [RE-wrenches] Propane Generator

I have another take, although it is not applicable to most people's situation. I use a Honda 2000. Rather than purchase a big expensive generator, and try to charge the batteries quickly, I run the small generator for more hours. It's very quiet and fuel efficient. Basically what I do when my ba

Re: [RE-wrenches] Propane Generator

We too have had good success with the 3600 RPM Kohler's. Although we don't care for the battery charging design for the starting battery. Dave -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Travis Creswell

Re: [RE-wrenches] Propane Generator

Good point Travis and I have a client who is not a good energy manager and has gone through [6] 3,600RPM generators in 8 years. Not enough solar and too many electronics for the kids. One good 1,800 RPM would have gotten them through all those years at a lot less cost. Sounds like you need a new m

Re: [RE-wrenches] Propane Generator

If I may humbly offer different opinion, I no longer specify 1800 RPM generators because they are ridiculously expensive to begin with and when the do break it's long after warranty and they are ridiculously expensive to fix. I've have been pleased with the 3600 RPM Kohler's. We've done numerous