Domestic water filter/purifiers - How to select?

[simon43]

In Homepro/DIY stores, there is a wide choice of domestic water filter/purification units that consist of (usually) 3 filter tanks about 25cm long and a small tap where potable water can be drawn off.

Does anyone have experience in selecting a suitable model and practicial use of these units?

I am completing the build of a small guesthouse, and I obtain water from a well which is stored in a holding tank, then supplied to showers and toilets. The water, although clear and non-smelling, is not intended to be drinkable, but it seems sensible to install one of these filter products if I can provide potable water. (In my other hotels, we rely on bottled water for drinking, but it is a finite expense and requires disposal of the empty bottles).

What points do I need to look for when buying one of these filter units?

Simon

[CharlieH]

I think there is/ was quite an indepth thread on this in the diy forum.

http://www.thaivisa.com/forum/forum/124-do-it-yourself-housing-forum/