Your juniper should be outside, they don't do well in the house. They need to be out in the sunshine and breeze. Submersing the pot in a bucket of water is ok or you can just water the top of the soil with a sprinkling can until the water drains freely from the the drain holes. Don't water on a set schedule. Learn to feel the soil for moisture and let the top layer of soil dry before you water again. How often you need to water will change according to weather conditions.

Tony