Hi Pip,

Thanks for the link but i'm affraid this is all commercial info from seagull, not independent information. I can't find any good watersport-magazine review online.

I'm sure any filter system can clean up reletively clean rainwater. But the problem with my situation is I am not at the finca for months sometimes. This makes the bio-infection level in the water high (yes, unfortunatly the birds also shit on the same roof I use to collect water  ;) )

Also most water-filters will transform in an infection-well itself if you leave it unused for months so I will have to change the filter cardridge(s) every time I arrive (so a system with an expensive cardridge isn't very economical for a 3-week holiday). For the moment I use the good-old chlorine method but good information about filtering systems is very welcome to lower my use of chlorine.

Regards,
Mark