Well i don't know if you are asking me or not but I though you had to check the water ph and the soil ph. You can't check the soil ph with a water ph meter can you? So is there a meter to check both. Or can I just use a soil ph meter to check the water.
Water PH is can be checked with one of those PH/Chlorine test kits used for pools. I also bought a Soil PH kit that works on the same premise. Both were under $25.00