I had just bought a panasonic tk-cs10, to replace my diamond(G1500). All my Diamond filter cartridge needs replacement, I don't wanna waste $ to replace all those, cos i saw many new models from other companies came out.. May i know if i connect any other filter prior or after this panasonic, to make the water better/safer/cleaner? I normally will boil it after filtration. My budget is below RM1k. This is a long thread, am sorry if i asked repeated questions, perhaps someone could pinpoint me to that topic, or just continue here instead?