Our engineer has told us that filling a pipe with concrete (for a pole mount application) is not strengthening it.
As soon as the wind blows & the pipe bends/twists the concrete begins to break up inside, making it useful only as a water wick. We did a few this way, but ultimately stopped (concrete filled that is, not well pipe). FWIW -Glenn From: [email protected] [mailto:[email protected]] On Behalf Of North Texas Renewable Energy Inc Sent: Monday, February 02, 2009 12:02 PM To: [email protected]; RE-wrenches Subject: Re: [RE-wrenches] dpw top of pole mount pipe problems Filling the pipe with concrete would strengthen it quite a bit but will also cause condensation on the outside during a lot of the year. Did I mention that pouring concrete from a half full 5 gallon pail while on a ladder is a real pain. Jim Duncan North Texas Renewable Energy Inc 817.917.0527 [email protected] www.ntrei.com _____ ----- Original Message ----- From: [email protected] To: [email protected] Sent: Monday, February 02, 2009 10:40 AM Subject: [RE-wrenches] dpw top of pole mount pipe problems Wrenches i have a customer that wanted to install a dpw top of pole mount for 18 sharp 180 watt panels. he installed his own pipe and even after several reminders by me and a signed contract stating shcedule 80 8 inch steel pipe he installed a 8 inch cast iron water main. My dilemma is this he claims to wave my liability in this install but he has been a very high maintnence customer and seems to forget everything we talk about or he signs. so would you go ahead with the install or is the cast iron going to shear off and the rack fall over? financially i have met my obligations with the customer i can wave the labor cost and tell him to find someone else at this point if need be i dont want to be liable for spilling 18 panels on the ground and my insurance wouldnt cover it as we went against dpw's recomendations _____ _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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