lee
Seedling
hi i am trying to make 4dkh solution..... iv tried once but i think its not right,iv gone out and brought all the stuff to make it , 1 liter deionised water&bicarbonate soda but my electric scales that are not really precise to measure 1 gram ,i only have measureing spoons 1/4 1/8.1/2tsp 1tsp .the stuff iv made up when you put 5m in the drop checker and add 2 drops of the blue ph solution it turns green straight away.the way i made it was to make a solution with deionised Wat and the bake soda and then keep adding little bit to the plan deionised water till i got 4dkh,iv tested it with my test kit which is a hagen and it was changing at 60 to 70 ppm but i no the test kits are not very precise.... :?
could i use ro water instead of deionised water
could i use ro water instead of deionised water