Your bath can become a blocked bath quite easily due to hair amongst other foreign objects that wash down the plughole, if this problem arises the best way to deal with it is by:
No.1. Check under the blocked bath to make sure the bath trap is clear, if all is clear and free under the blocked bath proceed to
No.2. Trace the waste pipe from the blocked bath to the outside Drain and make sure the Drain outside isn’t blocked, if all is free on the Drain which the blocked bath waste goes into then
No.3. You have now determined the blockage is between the blocked bath and the Drain outside, try to unblock with plunger, if all fails do not hesitate to call your SOS Halifax Drainage.