when using sunshine mix #4 u should ph your water 6.7-7.0 bc the peat/lime drop the waters ph until a few waters all you have to do is put some sunshine mix in a cup/grow bag just like ur guna do in ur bags/buckets for ur ladys and run ph"ed water through the empty cup or bag or bucket lol and test the run off when ph"ed at 6.5 it comes out 5.8 when ph"ed at 7.0 run off is 6.3 optimal plant uptake is between 6.0-6.3ph so u want to aim for a run off between 6.0-6.3 try this test urself and record it to get ur own results
