[pylofm]

I have just finished giving my equipment a clean...changing filters, resin.  Having just checked my two storage containers, I found them both to be 001tds..so put this down to the resin and filters being changed at about the right time....so I then checked the van tank (again 001tds) and when I looked at the bottom of the tank it  looks as if it is going a greeny/brown colour...could anyone enlighten me on what this is and does it affect the tds at all? and does the increasing temps we are having affect the 'slime'.

Thanks
Dave