If you plan on being away for a few days, turn off the water supply to the house. This will…
An Uponor plumbing system features Engel-method crosslinked polyethylene (PEX) tubing. This is a flexible plastic tubing product that has been used for more than 35 years in radiant floor heating, plumbing and fire safety systems.
Some manufacturers insist a roof over your heat pump is not necessary. However, in some cases where the unit may not be running consistently, snow can accumulate inside the unit and cause issues on startup. If you prefer not to install a shelter, you should ensure all snow is cleaned off the heat pump on a regular basis
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The gray water line is Polybutylene (Poly-B for short) and is no longer manufactured. The product line was discontinued due to the potential for breakdown given certain chlorine levels in the water and a particular kind of fitting, both of which were not an issue in Canada. These pipes, given they are correctly installed, will most likely outlive the house here in Canada and should not be a cause for concern. Poly-B has given way to a number of different waterline manufacturers, the most common one being Crosslinked Polyethylene, better known as Pex, used extensively as a substitute for more expensive plumbing systems such as copper.
See the following link for more info:http://www.pexinfo.com/
