Iv just bough this cheap ppm meter
http://cgi.ebay.co.uk/Digital-TDS-EC-Pool-Water-Quality-Tester-Meter-1999-ppm-/320649702211?pt=UK_HGKitchen_SmallApp_RL&hash=item4aa8362b43
im new to all this and im stuck iv bough some CANNA nutrients and on ther grow guide it says ppm (hanna) (eutech) and (truncheon) which one do i refer to iv contacted the company i bought it off but iv had no reply yet please could som one help
My nutrients are Hydro Vega Hydro Flores Rhizotonic CannaZym PK 13/14 CANNABoost
http://cgi.ebay.co.uk/Digital-TDS-EC-Pool-Water-Quality-Tester-Meter-1999-ppm-/320649702211?pt=UK_HGKitchen_SmallApp_RL&hash=item4aa8362b43
im new to all this and im stuck iv bough some CANNA nutrients and on ther grow guide it says ppm (hanna) (eutech) and (truncheon) which one do i refer to iv contacted the company i bought it off but iv had no reply yet please could som one help
My nutrients are Hydro Vega Hydro Flores Rhizotonic CannaZym PK 13/14 CANNABoost