Water filters

[barrys]

I am planning to fit water filters to a supply from a 50 metre bore.
I have 3 filters - polypropylene, carbon and granular activated carbon.
Does anyone know what order they should be installed in?

[Nereus]

Pretty much as you have written. Polypropylene is a pre-filter. Do the others have any markings listing the micron size that they filter? If they do then the one with smallest size last in line.

[barrys]

Thanks a lot Nereus - that's a great help