Drainage Gloucestershire are experts in dealing with a blocked sink problem in Hatherley, South West England and can provide help quickly. The first step we recommend is to ensure that the plughole hasn't been accidentally plugged up from items such as hairs or debris blocking it; if this does not work try using some methods below: Try to remove excess material surrounding your drain by using a shop bought drainage snake these will often get rid of any hair build-up around your pipes which contributes to blockages. Use boiling water for larger blocks; pour two litres slowly over an extended period down into the basin/sink/toilet before flushing once more - make sure you leave hot taps running till all residual water has disappeared. If clogs still remain pouring half a bottle (or similar) white distilled vinegar then leaving overnight should do the trick! Followed by one litre boiling water again after 20 minutes. Finally, use chemical based cleaners like caustic soda crystals but be warned they could damage certain materials so always check product safety information prior usageif unsure please contact local expert Drainage Gloucestershire team who can come out onsite fast and clear any stubborn drains effectively without causing further disruption