I'm experiencing a blockage in my kitchen sink and need a professional to clear it and ensure the drain is flowing freely again. The blockage started yesterday and seems to be affecting the main line if both sides are used. Please bring the necessary equipment to diagnose with a scope if needed, and I’d prefer a nozzle or snake method before considering higher pressure. I’d also appreciate advice on preventing future clogs, such as disposal tips or hair/food debris prevention. Access is easy, and I can be flexible with start time within normal working hours.