I have two cold water filter housings. One housing has a 10 micron filter, but I was wondering about installing the second one just before the first one, and was wondering what would be the best type of filter to use with it.
Options I have considered are a reusable coarser filter, such as 20 or 50 micron filter, to increase the life of the finer filter, or something like an activated carbon filter in an attempt to reduce the chemical impurity of the water.
Any ideas would be well recieved. I live in the home counties in the UK in case this makes any difference regarding water quality.