my filters came today, three in total 1= 5 micron 1= UDF carbon & 1=CTO carbon
What I need to know is can I use the two carbon ones before my 40 40 RO?
OR do I need to use the 5 micron & one carbon?
Ive only ever had the two 2 pre filters one 5 micron & one carbon,, would it be better to skip the 5 micron all together and just use carbons