If you are having trouble with a blocked sink in Hook Street, Gloucestershire, there are several steps and methods you can try to clear the blockage. First, check for any clogged pipes or drains around your sink area as this may be causing the issue. Next use water from a bucket or pan to fill up the basin; if it starts draining slowly then that indicates some sort of blockage is present and needs clearing. Using boiling water down through plughole pipelines (place cup over top) can help remove fatty deposits - repeat process until flow improves noticeably. If unsuccessful grab yourself an old-fashioned plunger! Alternately using vinegar mixed with baking soda poured directly into plug hole overnight also works well on tougher buildups but always remember gloves & goggles when handling these products together! You could even use drain snakes which offer high pressure solutions by inserting them between pipework hinges pushing downwards towards source of problem before removing again hopedully anything blocking way! Finally, consider getting professional assistance who will have access tools like hydro-jetting system specifically design targeting difficult drainage scenarios such as yours.