think i might have found source of my nitrate prob took sample of my RO water to lfs and the TDS was 30 think i read somewhere on a thread that someone was having trouble getting nitrates down and they found their RO unit was no good,
so it looks like my carbon filter and suspended solids cartridges need changing got them ordered
would a TDS reading of 30 have that effect on my nitrates though because when tested no nitrates where showing in my RO water?