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  1. HB2U

    Foam Below A Driving Surface

    I'm not a structural engineer, but how did you decide that 150 psi is what the foam itself needed to be able to handle? The construciton details that I've seen for insulated garage floor slabs just spec out EPS foam sheets. You can stack them to get the thickness that you require. The...
  2. HB2U

    Large Pipe Leaking

    The line was filled slowly from the bottom and it's sloped along its length. It's my understanhding that as you increase the pressure, more air can be absorbed by the water. (reverse of what happens when you open a bottle of soda and release the pressure, letting the Carbon Dioxide out of...
  3. HB2U

    Large Pipe Leaking

    The line has been pressurized several times, and there doesn't seem to be any improvement, but the contractor is convinced that he's chasing a leak so he's been putting water in and letting water out etc. instead of trying to keep pressure on the line. - I'm not so sure it's a leak. I've been...
  4. HB2U

    Large Pipe Leaking

    Got a question for all of you fine folks.... Here's the scenario: I've got a well station being constructed and the design used 180 feet of 48 inch DIP for the chlorine contactor. The pipe is arranged in a "U" shape, fairly level and we used TR Flex joints. The contractor is having...
  5. HB2U

    smelly manhole

    Start with an inexpensive experiment first. Just fit the lid with an insert. The type that's used to prevent rainwater from entering the system. If you solve the problem for a couple of dollars, you'll look like a stud. If it doesn't work, at least they know you tried the simplest method...
  6. HB2U

    Career change

    Will either of the job offers pay for schooling? Then you can have your cake and eat it too. Otherwise, the more future options you can create for yourself (multiple degrees) the better off you are. That way when you DO have a wife, kids and mortgage, a layoff won't be so traumatic cause...
  7. HB2U

    Flushing of Water Main

    It sounds as if the problem may be within your clients portion of the system. The local water purveyor may not be responsible for the part of the system that's causing the trouble. As was recommended above, flush the larger diameter pipe first at as high a flow as possible to be sure that...
  8. HB2U

    water Hammer

    since you imply that the pressure range follows a set schedule...."there is a fluctuation in pressure from 25 bar to 13 bar every 30 min from 8 am to 1 pm." it seems that one of your industrial users may have a large water requirement in pulses as dictated by their process. If they are...
  9. HB2U

    Cathodic Protection for water pipeline

    When my company has to place water line within 50 feet of a gas line that is cathodically protected we go with either a polyethylen wrap or C-900 pipe in that section. Since your line is already there, shouldn't the onus of protectioj of the water line be on the gas utility? They can replace...
  10. HB2U

    Happiness

    Why is everyone looking for their personal fullfillment in the workplace? Only 12% of you life is spent working. It's foolish to seek your happiness in such a small segment of your life. Aim for the big target; it's much easier to hit. Instead, you should judt find a job that's enjoyable...
  11. HB2U

    Run Off Water Measurement and Sampling Equipment

    I don't know Bob, last time I used an ISCO sampler the basis of sampling was time. It did not have the capability of flow paced sampling. Have they added that capability to those units? (It's been about 5 years since I used one) Candu6 what was the problem you were having with the original...
  12. HB2U

    Replacement of Asbestos Cement pipe - options/risks

    We abandon it in place where we can. Usually constructing the new main adjacent to the old one and then tying over the service lines once the new main is pressure tested and activated. As was stated earlier, it;s not a problem until it becomes friable, so by abandonming it in place, you avoid...
  13. HB2U

    Boss Problems

    Tunalover - I think that if you want to be rewarded by your boss you need to figure out what's important to him. Find out what his goals are and how he is judged by his boss and then align your efforts to help your boss acheive his goals. This, in turn, will keep him happy and he will begin...
  14. HB2U

    Floating Parcel Help Needed in PA

    Thanks for the info gravel. The neighbor has since dissappeared, not o be heard from since he made the initial "shot over my bow". the PADOT drawing that I got from their archives shows the corners of their fouindation and the location of the parcel corners can be (roughly) measured from those...
  15. HB2U

    Floating Parcel Help Needed in PA

    Thanks for the info KRS. The problem is that you can only find the plans at the courthouse if they were submitted to the courthouse. This transaction took place more than 100 years ago and in this county, the record keepping wasn't really good intil the 1950's. Fortunately though I found a...
  16. HB2U

    Floating Parcel Help Needed in PA

    Hi all, hope someone here can shed a bit of light on this for me.... Here's the background. A neighboring property was recently sold and the new owner had his lot surveyed. With his lot came a 24ft by 37ft piece of property that had been carved out of my property around 1915. My property...
  17. HB2U

    Water line under pavement

    I work for a private water company and I agree with KRS. Repair requirements to a roadway are clear cut and even expected from time to time. No private homeowner understands when pipe breaks. The hassles that come form dealing with the public are bad enough when you're just taking up a public...
  18. HB2U

    Pipe Bursting / Other non-opencut methods for sewers

    Just a couple of thoughts.... Would it be possible to move the location of the sewer line since you're replacing the manholes anyway? Then you could get it away from the other utilities? As I understand it, pipe bursting won't work unless you can backfeed the tow cable through the line and...
  19. HB2U

    Environmental Engineering - Good Career?

    To answer your subsequent questions... 1.)I started working for a firm of about 130 people. Engineers of all disciplines as well as architects and interior design people. Worked for A.)private industry doing environmental investigations, designing treatment facilities for waste, air quality...
  20. HB2U

    Gov't job vs. Private sector job

    TAKE THE GOVERNMENT JOB. Work it for a few years. You'll establish a network of connections that will open doors for you later in the private sector, you'll establish a salary history that is higher than what you'll establish in the private sector, you'll be working your way toward pension...

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