Firstly, don't take time off work with stress. You'll be a hell of a lot more stressed if you end up losing your job and don't have any money coming in.
Secondly, give it time. If a drainage pipe has been leaking for some time the ground will be saturated. It may take some months for the water to make its way out again. Fill the hole with sand if it's washing the clay out from under your footings.
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