You need to water thoroughly, not so much frequently. If your soil is dry, water the plant until water comes out of the bottom of the pot. This ensures all of your soil is moist and also leaches salts every time you water. Collect the runoff and check the ph of that water, as long as it is only 10-15 % runoff. Also, if your water is running around the soil in the pot and not through the soil, add a couple drops of detergent to your water so it will penetrate the dry soil.