Unblock A Bath Drain -
Before trying any chemical method (natural or store-bought), This can create toxic fumes. If you have tried a chemical cleaner and it failed, do not immediately try another method that involves chemicals; stick to mechanical removal.
For more stubborn clogs, you may need to use mechanical force. A cup plunger is designed specifically for flat surfaces like bathtubs. To use it effectively, remove the drain stopper and fill the tub with enough water to cover the lip of the plunger. If your bathtub has an overflow drain (the small plate usually located under the faucet), seal it with a wet rag or duct tape to ensure the air pressure is directed entirely at the clog. Place the plunger over the drain and use firm, vertical strokes for about 30 seconds. unblock a bath drain