I don't think that simply moving a plant can be counted on to induce stress, though it certainly can. E.g., when you move your houseplants indoors after a summer's vacation outdoors, that is stressful. If you move a Ficus b from in front of a chilly basement window where it's been struggling all winter, to a table in dappled shade when summer comes, then to a full sun location, that will alleviate the stress of growing where it is too cool and too dark. Plants are responsive organisms that are limited by their genetics and cultural influences. Whenever you improve a cultural influence so it is no longer the limiting factor, another factor becomes limiting. Eliminating limiting factors or reducing their influences is how we make plants grow better. In the example of the Ficus, we improved both light and temperature by moving the plant to a brighter/warmer location. The reaction of the plant would be an immediate improvement in growth and metabolic rates based on a reduction of stress/strain due to improved cultural conditions. So you can see that it is the conditions under which the plant is presently growing vs the conditions that prevail at the new site that determines whether or not the plant will suffer increased or reduced stress when/if it's moved. We can't simply say with any degree of certainty that resiting a (containerized) plant is stressful. Al

The present refrigerant in the system is R22A and doesn't need recovering. The system had almost no pressure and I re-charged it with R22A three years ago. I has worked flawlessly ever since and no leak seems to be present. I didn't completely trust the salesman, that's why I asked the question here. I do think the R22A improves the performance of the old heat pump and the only reason I would want to change it is improved efficiency due to the variable speed blower and the scroll compressor of the new units.

Both the International Residential Code and the Uniform Plumbing Code have approved the following continuos roll plastic pipe for potable water service lines. (Service is defined as the direct buried line from the well or municipal main to the structure). P.E. Pipe (Polyethelene Pipe - standard color is Black) P.B. Pipe (Polybutelene Pipe - standard color is Gray) PEX Plastic Tubing- colors vary by manufacturer and size- Principaly Red, Blue or Yellow PEX-AL-PEX Plastic Pipe- colors vary by manufacturer and size- Principaly Red, Blue or Yellow P.E. & P.B. pipe is generally connected by means of a Nylon or Brass Barb Fitting. (Barb fittings have a male nipple with raised ridges that is inserted inside the pipe and held in place by means of a stainless steel hose clamp similar to an automotive radiator clamp) PEX & PEX-AL-PEX requires the use of a PEX connector which is similar to the Barb fitting but held in place by a metal clamp ring that is compressed by means of a special PEX connector compression tool. Shark Bite press on fittings have now received code acceptance by both the UPC & the IRC and may be used on any of the above mentioned types of pipe. Continuouse roll plastic pipe is now considered the material of choice because it is: 1. Less expensive 2. Quicker and easier to install 3. No underground joints to fail 4. Impervious to soil acids that may deteriorate copper or galvanized pipe. 5. Will tolerate a freeze without breaking. Note: The water line to my own house was installed with Polyethelene pipe and nylon barb fittings in 1961 and to date there have been no failures of any sort.

"Studies using magnetic field strength as an exposure measure have found that exposures greater than the range of 0.3 to 0.4 �[micro]T lead to a doubling risk of leukemia" The earths natural field is 25 to 65 micro Tesla, or 80 to 200 times stronger than the fields they are claiming. And any affect from a static field and a moving object is exactly the same as a static object and a time varying field. It is a VERY difficult measurement to see anything below the earths field. "This exposure range is approximately equal to a distance of 60 m within a high-voltage power line of 500 kV." This single statement belies their gross ignorance of what they are doing. Voltage does not produce a magnetic field, current does. They are an appearance issue. This post was edited by brickeyee on Tue, Jan 22, 13 at 13:18