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  • Users: jackaustin
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  1. jackaustin

    The Leak Detector made a mistake

    Hi Everyone, I recently got a $3000+ water bill from Sydney Water which made me really sad. However, that was not the worst thing – I hired a Leak Detector to detect the leak (cost $400) and then hired a plumber to replace the pipeline (cost $1600) – guess what happened? The leak remained! I...
  2. jackaustin

    Estimating Software question

    we've been looking at two different programs and wanted to get some feedback from fellow dirt bunnies. Our company has been doing nothing but bid for the last three years, and about out of every 50-60 jobs bid, we will get one. I'm spending 7/8 of my time stuck in front of my screen instead of...
  3. jackaustin

    Estimating outlets in CMU

    I am currently quoting a job where the customer has requested they be installed in the block wall. My experience with this while working in the field has been it's very time consuming and lots of varying factors in Masonry cost calculator. Does anyone have a labor hour number that has worked...
  4. jackaustin

    Metal roof Q... Standing seam vs diamond rib??

    I can't get any straight answers from builders, roofers, or suppliers. Can it be true, that the more money you have the more expensive the roofing you get- even if they all are guaranteed for the same 40 years?? Is one quieter in storms? (I have NO attic, but will be well insulated). Standing...
  5. jackaustin

    Concrete that very likely would pass inspection

    Basically, what is the best concrete you could make for footings? Assuming average ground conditions. (I've got clay and gravel, need a pick to dig it up.) P.S. I'm not actually sure there is a best as such. Maybe there is just a concrete mix for footings ( I think 1:6 using all-in ballast)...
  6. jackaustin

    concrete repair

    I have a change of use on the go and need to fill a grip in some concrete. It's approx 2 " deep at one side feathering away to nothing at the other side about 45 ft long, so, not a huge volume. The area is going to become a wet tipping area for grain so will need to be hard-wearing and resistant...
  7. jackaustin

    OT - Options for waterproof and fireproof deck?

    I'm about to replace two small deck surfaces over living areas, and perhaps convert another large deck to waterproof construction to allow storage underneath. What's common here (and the one that needs replacing) is fabric layers embedded in acrylic latex, followed by a topcoat. Relatively easy...
  8. jackaustin

    welding helmet question

    a few years ago we got a Jackson welding helmet from Fastenal esab sentinel a50 review, supposed to go from 9 to 13. I think it's coming to the end of its usefulness, so I grabbed the old fixed shade spare helmet, a lot better, so for occasional use what works> I was looking at harbor freight...
  9. jackaustin

    Default How to get the coilgun (Gauss Gun) electomagnetic field strength...

    So in a coilgun, I need to know how long the electromagnetic field has to be to propel a .336kg mass at 500m/s^2 (a force of 168N) in each coil There are five coils, each one 1m apart strength of the electric field. What's the formula to achieve the necessary em field strength to propel the...
  10. jackaustin

    Mechanic's liability insurance

    I have been wrenching on farmer's older tractors for years and liability insurance hasn't been a concern. I have though recently began performing some repair work for a multinational aluminum plant on their scrap trailer tipper trucks and a Broce broom. I was called about a failed fifth wheel...

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