The internet is awash with hints and tips to clear a blocked drain such as using biological cleaners and baking soda as an environmentally friendly way to help maintain clear water flow in your drainage system. Boiling water or hot water is another simple method promoted online to dissolve grease and fat build-ups so that your drains remain free-flowing. However, if you call out a professional drainage engineer, such as Drainage Consultants Limited to carry out drain unblocking, they will carry out high-pressure water jetting to restore flow to your pipework rather than using baking soda, chemical cleaners or a biological cleaner.