In the depths where waters flow unseen, Where pipes weave tales of grey and green, A humble steward watches o'er, The streams beneath the city's floor. Today, the sun bestows its light, Upon the one who turns the night To waters clear, a clean cascade, His hands of care a vow conveyed. In labyrinths of pipes, his skill, Commands a world both deep and still, Yet on this day, we celebrate, The heart that beats beneath the grate. A husband cherished, kind and true, His birthday like the morning dew, Through hidden veins his spirit sails, A love that blooms, where nothing fails.