can anyone tell me how much crystals is safe to use in a soil grow?My water has PH of 6 my soil is 5.5-6 It takes 2 tsp.per gal for my water to go from 6 to 6.5 and that is still on the low end of where I want to be(I recently lost an entire grow due to low PH 4.7-5.3)I mixed my new soil with 1 tblsp dol.lime per gal of soil and currently fixing the problems with the water with PH UP it just never came with directions.TO SUM this up My water to get to 6.5ph my plants will receive 4 ts of PH up a week each,(2 ts at watering and 2 ts at feeding) (plants in 3 gal soil pots)am I safe to use this amount if so can I go a little more to get to 7(also will I have to do this continuously or will the soil start to buffer after a few times?)Thanks all for the help in advance