As for the owner of the configuration is basically the first a little bit of a little bit of a role outside of the other all belong to the redundant plus fooling.
Central water purifier if it does not involve reverse osmosis or resin and so on how you filter the scale problem is not dealt with.
Drinking water device Alkaline water? LZ go buy some far-infrared + maiyan stone and throw it into a big tank no matter what water you throw in the water that comes out is weakly alkaline.
The problem you need to solve for bathing is not much. First of all, the number of impurities in the water is low, and more importantly, bleach and residual chlorine, because these two are specialized in accelerating the aging of the body's cells.
The second set of costly program on top of the original basic program just proposed, and then add an ultra-filtration of the central filter in the back of any brand can be, but must be ultra-filtration (if you have the money to install reverse osmosis units. You can also try.)
Drinking water If you are very demanding, then install a RO machine is a water purifier
This program is basically the solution to your problem.
Back to see this answer people do not say some pure water machine drinking water is not nutritious childish answer. (Never spell professional with me.)