It gets expensive to drink bottled water down in Negril, so for our house I found these unbelieveable water filters that the red cross uses where there is no potable water available. We can't drink our tank water cause it's a mix of rain water and truck water. White man doesnt do well with rain water. These filters remove everything, I mean everything. The one we got is called a big berkey, came with two filters but I just got two more filters to plug it to speed up the process due to the fact we are having our first guests soon and we need more water quicker. we used the filter last trip, incredible. You can filter stagnant pond water and drink it. If you have a place down der, these over the long run are well worth the jing.