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snowyco last won the day on August 12 2016

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About snowyco

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  1. snowyco

    Process for extending TIP

    Residente temporal visa holders~applicants who have TIP vehicles (here on temporary import permits) must notify Aduana, in writing, of your residente temporal visa being approved or of being renewed. When your new RT visa is 'approved', or extended, when you go in to the INM office, to provide your official signature for your RT card, you then have 2 weeks to notify Aduana. In the written notice to Aduana, along with TIP information & passport info, you also include information identifying & documenting the expiration date of your RT Visa, requesting Aduana to extend the TIP's current expiration date to match the RT visa's new expiration date. Spencer does this well ... dotting all i's & crossing all t's.
  2. If you have a single central inverter, then dust, bird poo & bat poo splatters cut our solar systems output by between 10% - 30%, especially during the morning & afternoon. Micro-inverters have that advantage over central inverters, that bird poo on a single panel affects just that one panel's~inverter's output, while central inverters have their panels in a string, so 1 blob of bird poo cuts power on the whole string. ... Just 2 weeks ago, I noticed our central inverter system was only putting out 1,360 watts, one morning when it should have been at 1,900W. I scraped off the dried bird poo with a razor blade, and the system output jumped to 1930W. ... The bird poo was on a single 250W panel, but it cut the system output by 540W. If your panels are clean, then ... Oxidized-lightly corroded junctions inside the electrical connectors has also caused drops in friends' central-inverter systems, as central inverters have the panels in a string, so one dirty internal junction affects the power flow for all panels. We found that the normal 'crimped' joints inside each electrical coupler occassionally get a little corrosion after a few years (corrosion happening where the wire is crimped into the junction) ... Instead we solder all the joints-junctions where the wires enter the black MC4 electrical solar connectors..
  3. The 12,000 BTU A/C units require 10A service (15A breaker) at 110V. That means running 12 gauge (thick ~ 'calibre doce'~ ) cable for 110V units ...or 14 ga. cable (thin) for 220V. Bigger air conditioners like 18,000 BTU draw 18A - 20A at 110V, (30A - 40A breaker), which would mean running (expensive) very heavy 8 gauge wire ... versus only needing 12 ga for 220V @ 10A for the same 18,000 BTU clima. It's just not practical to build 18,000 BTU 110V A/C units, because it takes really heavy wire to carry the 20A current at just 110V.
  4. snowyco

    Solar water heater

    Theory vs. the real world versus personal guesses: What does Jerry's " maybe 120F " mean? ... It sounds like a pure guess. ... Reality? Current wax toilet-seal rings are made of a heavy (high melting point) petroleum based wax, with special polyurethane additives, that far outperform Jerry's guesses. Even if you got a natural beeswax ring by accident, the normal temperature of the inside of a bee hive is 100º F (surpisingly close to Jerry's guess of 'imagined degradation at his "120F") ... Bees wax's actual flash temperature is 400º F, and the modern petroleum waxes w/polyurethane perform even better. We've had very good results with modern bowl gasket wax as a lubricant~sealant on three different glass tube water heaters for years, while the OP's experience proves that silicone doesn't work - leaks - on the OP's glass tube water heater. mexjerry: How many of these heaters have you installed using modern sealant wax , or silicone? How many of these heaters do you own, on which some installer used silicone?
  5. snowyco

    Digital CFE meters and solar

    Agree, agree, agree. The homeowner with the old meter that runs backwards, is Dutch, and can be a bit stubborn.
  6. snowyco

    Solar water heater

    If the silicone applications start leaking again, then it confirms that silicone greases are not designed to seal underwater in harsh hot conditions for years. Instead, the old standby of wax is designed to seal under water for years-to-decades. That's why wax gaskets are used to seal toilets for decades, and why silicone is not used for that harsh application. If you have to remove the tubes again, due to leaks, then thoroughly clean off any silicone residues, and then coat the rubber gaskets with wax from a good quality toilet seal, and apply a thin coating of the same wax to the glass, down to cover the part of the tube that touches~seals with the rubber. Fortunately, this method not only protects the rubber seals from the slightly acidic, very-hot water, but it also protects the glass.
  7. snowyco

    Digital CFE meters and solar

    Does every single home with solar panels have a new digital meter? Re the OP's question, Yes, the old-style analogue 'clock-works' CFE meters with gears do turn backwards just fine - reducing the numbers of kWh shown on the CFE meter every moment when the solar system makes more electrical power than the home consumes. An un-named friend who's running panels with a grid-tied inverter, but without a CFE permit~contract, for the last 3 years still has his old analogue CFE meter, and it continues to spin backwards just fine. Because it sometimes spins backwards too much (causing the meter readings to fall too much during some months), he has to turn off his solar system until the meter spins forward just enough to show net higher readings every 2 month billing cycle.
  8. Note that the latest modern technology in high efficiency inverter air conditioners do NOT supply electricity continuously to the motor, while in contrast the old swamp coolers run electricity~current constantly to keep the big alternating current fan motor running. Modern Inverter technology instead interrupts (shuts off) the power to the inverter's armature, so current & voltage are only applied for 20% - 50% of a 60 hz cycle ... By turning OFF the power very rapidly, and by only applying just enough very short pulses of electricity to the inverter, to keep the armature spinning .... and by operating the inverter with a Direct Current continuously variable speed motor**, the modern inverter can provide cool air using less electricity than an old-style swamp cooler running an old inefficient alternating current (AC) induction motor. **The little pulses of electricity are specifically applied in small amounts, just enough to keep the DC inverter's armature spinning - exactly like how it only takes a little occasional push to keep a flywheel spinning. Plus, by using a more efficient DC motor (vs less efficient `1 speed or just 2 speed old Alternating Current induction motors), the direct drive DC motor's higher efficiency + its ability to control the speed variably ~allowiing the DC motor to spin at lower more efficient speeds~ the latest technology modern inverters use sophisticated precise frequency controls + a more efficient DC motor to cool an area with nice dry cool air ... using the same amount or less electricity than the very humid air from an old-technology swamp cooler. Technology & creative thinking~designs continue to make leaps that people never imagined in even the 1990's.
  9. Our 12,000 BTU inverter air conditioner also uses just 300W - 500W (continuously variable speed) to keep the upper part of our home cool, so it is difficult to understand how the swamp cooler is more efficient than a modern inverter AC with a SEER rating of 16 or 17. The latest versions of modern inverter Air Conditioners using just 300W-500W to keep an area cool would seem to be as efficient, and sometimes more efficient than a 500W swamp cooler blowing out very humid air. ??
  10. I have done it for friends, using a durable Power of Attorney (Carta de Poder), The POA stated (in good Spanish) that the vehicle's owner (formal name as on passport) + passport number (and attached copy of the key passport page), authorized me to act as their legal agent in any and all matters relating to the vehicle, model, make, year + VIN, + US state registration (attached copy), + Aduana TIP (permit) number ... granting me all rights & responsibilities for the vehicle + VIN, (this authorizes the person to drive the vehicle and/or sell the vehicle - as I also took the vehicle to sell across the border). The POA further stated that the owner specifically requested that I be allowed to make any & all applications & take any & all actions necessary to cancel the "Permiso de Importación Temporal de Vehiculo" + #Permit number, for VIN ________________ . I am offering zero legal advice. I only offer what worked well 2 times for me & friends of ours. Contact a good attorney like Spencer to get a solid legitimate Carta de Poder that covers your specific situations & specific needs. ChapalaLaw.com .
  11. The last 2 times I have done this for friends at border crossings. we had to present a letter to Aduana~Banjercito certifying that the original permit document was lost, but that the windshield sticker was intact, along with a statement requesting that they cancel the current TIP. Aduana gave us a form to fill out, (not available on the internet), and a Banjercito employee took pictures of the sticker, the VIN plate on the dash, & the manuf. spec. sticker on the driver's door jamb. It took Aduana about 2 hrs to process the application to cancel the TIP (when the original permit-document is lost). During busy times, it can take Aduana~Banjercito 4 hours to process the application, so plan accordingly. This special application process (for lost documents) is handled by special Aduana office-personnel who are often only present from 8:00 AM - 5:00 pm at border crossings, so if you arrive at 4:30 or 4:50, we have had them say: "Sorry, you arrived too late. ... Please return tomorrow."
  12. snowyco

    Peso dips

    The MXN peso has been hanging back in the $18.6 - $18.7 rate, where's it's been for most of the last 4 months. https://www.xe.com/currencyconverter/convert/?Amount=1&From=USD&To=MXN currently lists it at $18.7219 as of the latest trade at 2:20 UTC. 5/1/2018.
  13. snowyco

    Re newing tourist visa

    Depends on the border crossing. At some southern border crossing points like Guatemala & Belize, some INM agents insist that the visitante visa applicants be out of Mexico for at least 3 days. The border crossings with the USA allow same day turnaround applications for visitante visas.
  14. snowyco

    CFE stops solar credits

    One key to avoiding corrosion: Do not drill or scratch the aluminum components. ... Use only the manufacturer's pre-drilled holes when installing or securing - so the corrosion resistance is only as good as the installation. Good quality manufactures treat~seal the frames with anti-corrosion coatings, but those coatings can fail when people drill holes or scratch the aluminum parts. Re the amparo's effects on small electricity generators, consider the difference between Net-metering and Net-Billing. Under Net Metering, we cannot generate a cash profit at the end of the CFE billing cycle. Fortunately, the CFE's current Net Billing system is better, because our excess solar electricity generation is valued at the higher retail rates (esp Excedente), a bonus when we use the CFE-banked kWh in the future.
  15. What size swamp cooler do you use~recommend for here for a 1000 sq ft (95 sq m) area here? Some swamp coolers use as much as 9 amps~1150 Watts (like 5,000 CFM units), which means they use almost twice more energy than a 12,000 BTU modern Invertor mini-split that uses just 5½ amps~ 700 Watts, making nice dry cool air. As the modern inverters have become more & more efficient, some now use very cool electronic tricks to outperform swamp coolers, without the swamp cooler's damp blowing, especially when it's humid outside.