In addition to filters and softeners,
using a good hair care product for well water is advisable.
Check out Malibu Making Water Well system kits.
Includes a shampoo,
conditioner and hard water weekly demineralizer.
these will remove all the hard water minerals and oxidizers from well water to eliminate brassiness,
improve hair texture and shine.
If your buildup is really bad,
use the Malibu Crystal Gel first as this is an extra-strength demineralizer.
Check out http://www.haircareusa.com
for more information on any of these great products.