For that reason, I don't buy cheap stuff.  Unfortunately I have deep pockets and short arms.  I take a pride in having a finely manicured lawn, but if I spend more than two hours a week of my precious free time on the lawn my wife starts getting jealous.  This dictates the need for some better than average equipment.  But I'd rather have no tractor at all than settle for a Murray, so for the first two years in my house I pushed it.  My Honda 6hp mower did a fine job chomping up 21" at a time, but I had to basically run behind it to come in under the two hour mark.  After two years of saving and pushing, the time had come to take it to the next level. 

I knew I'd be doing a lot more with this tractor than just turning tall grass into short grass.  I also anticipate having this tractor a lot longer than my current home, and I don't plan on mowing less than an acre from here out.  It had to be a John Deere garden tractor.  For me, an old IH Cub Cadet would be another likely choice, but now that they're made by MTD, no thanks. 

 First let's start with a general definition of the word manifold,  1) Consisting of or operating several devices of one kind at the same time. 2) A pipe or chamber having multiple apertures for making connections. More simply put, for plumbing, it is a control center for hot and/or cold water that feeds "flexible plastic supply lines" (PEX) to individual fixtures. Please note that in my guides I am addressing potable (drinking) water PEX systems. A lot of the same information applies to radiant heating systems but these are usually found under floors and have differences in installation.

 There are many benefits to the PEX manifold system. 1) Because most of the connections are made at one central point, any leakage is visible and easier to correct. 2) Individual branches of the system can be shut off for service without shutting down all of the water to the system/residence. 3) This system provides a much more regulated water pressure supply!

 If you are installing or have installed a PEX plumbing system you need to be very sure that you still have a solid ground for your electrical system. This is VERY IMPORTANT! Please also keep in mind while you are reading this that you need to check your local electrical code requirements for specifics to your area. If in doubt check with your city or town building department.

 All electrical systems should have a main copper ground attached to the electrical panel that runs to a ground rod on the outside of the home. These ground rods are usually required to be 8' long vertically into the ground. Many homes, especially older ones, also have a secondary grounding system that uses a copper line attached into the plumbing system. This secondary grounding can also be required for jacuzzi and whirlpool tub installations. If you have installed a PEX plumbing system you most likely have now BROKEN the secondary ground system. If by chance you are in a much older residence without an upgraded electrical system you may not have any grounding system at all because many older systems did not employ the use of a main ground rod.

 A plumbing grounding system works by using the galvanized or copper lines in the home to conduct back to ground through the main water line into your home. By installing a non-metallic plumbing system this "conductor" has been broken. The quickest fix for this is to have  an "unbroken" copper ground line, of the required size, attached to the metal plumbing line right where it enters your home, before your water meter.

This guide is intended to give you the knowledge you need to decide if Welder Qualification Testing is right for you and your business.

Most welding work done in this country requires some kind of performance testing. Sometimes a fabrication company will pay for this testing but more and more often these days fabrication companies want some kind of assurance that you have the skills to pass this test before you are hired.

There are a few ways to aquire this certification, they include:

1. Taking classes at a community college that offers a welding program, most of the time you will need to take the basic and advanced level classes before you are allowed to take the qualification test. The cost for these classes usually falls between 800.00 and 1200.00.

2. Go to a testing facility in your local area. These facilities are usually only open during normal business hours during the work week and this can neccesitate you taking anywhere from a few hours to an entire day off depending on the schedule at the testing site. This testing will usually run between 600.00 and 800.00 for the most common required tests.

3. Look for testing services on this and other websites. This type of testing can cost significantly less than other options but does require you to have access to welding equipment and the required steel to perform the test. The good news is that most fabrication companies have both of these things at thier disposal. This type of testing can run as little 170.00 for the most common testing procedure.

There are many different welding codes in this country and abroad. The three most common in this country are:

Scenario One: You are having a home built from the ground up, and you are meeting with the electrician tomorrow....

INTRODUCTION

If you own or manage asphalt pavement you are responsible for an increasingly expensive asset.  Asphalt was initially developed as an inexpensive surface for the many newly required roadways in the early twentieth century.  This was made necessary by the introduction of the automobile and its need to have a hard, smooth and regular surface over which it could traverse and park.

In the intervening years the price of oil and aggregate has risen along with environmental regulations regarding asphalts use resulting in the increase of the price of asphalt pavement.  The cost of asphalt pavement is now to the point that in its own right it is considered to be an important and expensive asset of any industrial, transport, commercial, retail or educational institution that owns it.  This consideration has replaced the traditional attitude that asphalt is something we do not notice until it is broken.

Managers of public asphalt pavement (roads) employ professional civil engineers whose full time work is evaluating the condition and performance of the public pavement and optimizing the methods and treatments in its required maintenance.

WHAT IS ASPHALT PAVEMENT
Asphalt is the term used to describe a mixture of bitumen (oil) with aggregate (rock).  Asphalt may also contain other additives such as emulsifiers, cut back agents, polymers, etc.  Asphalt pavement is this mixture placed and compacted over a base course or sub base course or both.  This pavement is also referred to as a pavement structure in that each course (surface, base, sub-base) will act structurally and each provides support to the given loading.

The design of an asphalt pavement can vary significantly but usually always includes a surface course (asphalt) and a base course.  This base course is usually made up of various gradations (sizes) of angular rock or gravel designed to interlock under compaction and provide support to the asphalt wearing or surface course.

Asphalt pavement has been the cheap and plentiful option to provide dependable surfacing for foot and wheeled traffic around the world.  It is commonly referred to as a ?flexible? pavement in that it has a limited ability to move and distort under load.  This ability increases with temperature but decreases with age and use.  While asphalt pavement is flexible Portland Cement Concrete Pavement is usually referred to as a ?rigid? pavement. 

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