Question 1:
1. Which system?
Do you want a filtration system that you can install, or a system installed by a plumber?*To help you decide: A Whole House and Plumbed Filtration Solution is installed by a plumber and can offer more choices of filter media to handle the tougher applications. They can offer higher flow-rates but can take up more space.
A DIY system is kit supplied with Filter / Head / tubing / fittings and in some, a dedicated faucet. These can be self-installed or reduce time for a plumber. Most are easily removed for rental or temporary solutions. These systems are new technology and offer quicker, easier and sanitary on going replacement filters.