DONT TRY if you have already put toxic chemical into the drain / world water ways
Ingredients

Baking Soda
White vinegar
Cream of Tar tar
Salt

Tools
Tea Kettle
Mixing container
plunger
small cup

Step 1: Mixture

(Please Note this is preventive care)

Start Boiling water. fill tea kettle more boiling water is better

Grab you mixing container

Measure out

one cup of Salt
one cup of baking powder
1/4 cup of cream of tart tar

You can buy everything in a local super market

Stir and mix and shake if container permits shaking

Step 2: Insert Mixture

Pour boiling water down the drain to clear any other chemicals

- add a cup of the powder solution. into the drain

-then add more boiling water

-let the mixture chill for 10-15 minutes

-then add white vinegar

once you have added vinegar use the plunger plug the drain so the chemical reaction goes down

Repeat 3 times

Remember sometime if you live on the first floor the toilet over flows into the tub so try unclogging both drains.