As with any new rhythm or beat subdivision, it is important to practice playing triplets on any beat on the snare drum and the bass drum. Here are some examples to help you gain control of triplets on the bass drum.
This example features triplets on the snare drum. Keep all the parts strong and steady regardless of what the left hand is doing.
Here is a commonly used Blues beat which uses triplets. Notice the triplet figure on the bass drum and also on the snare drum just before the crash cymbal is played.