Dreams about drowning can often represent feelings of being overwhelmed or a fear of losing control in some aspect of your life. In this case, dreaming of your baby drowning in dirty water might symbolize concerns about their wellbeing or your own feelings of inadequacy in protecting them. The fact that you saved your baby in the dream indicates your strong instinct to protect and care for those you love, and it reflects your resilience and capability in facing challenges.

This dream may also encourage you to address any underlying worries or stressors you might be experiencing in your waking life. Consider reflecting on what aspects of your life might feel "dirty" or chaotic, and think about how you can bring clarity and cleanliness to those areas.

Overall, this dream highlights both your fears and your strengths as a caregiver. It might be helpful to talk about your feelings with someone you trust or to write down your thoughts to explore them further.