What pipe diameter is better to begin with a new water connection knowing that your house will be 750 feet away from your city's 1-inch feed?
I wouldn't go any SMALLER than 1 inch, but recognize that you will have far less flow restriction if you go to a larger diameter pipe. It's a small additional expense now to avoid a large annoyance later.
You don't. Replacement can cost $400 at dealer. Instead I use a NEODYMIUM CYLINDER MAGNETS 1inch diameter by 1inch thinck. The thickness is more important than the diameter so that it can hold together the visor and the roof. Magnet goes between the visor and the roof - you can't see it when the visor is in the up position.