EricP wrote:
Are the six month change cartridge type any good? If not, what is
recommended?

What are you trying to achieve? If it's just a taste improvement, then
activated carbon filters will do a reasonable job.


I have seen a very strange one under a sink that seemed to have a
thing that looked like a gas bottle on it and made load moaning noises
when used. Damn nice water though.

That was probably an RO system. We have one to treat our drinking water,
which comes from a well. They are extremely effective, and the water
tastes great.


--
Grunff