The success of uncorking necessarily depends if we respect 3 rules.
(After her with luck can run immediately but ...)
-it is necessary that the drain cleaner is fully in the outlet pipe (it will very often dismount the sink bung see siphon)
-it must block any air, water over the entire pipeline (lack of pressure if the cap will just move from but never completely)
-Scotcher Hermetically other plug and overflow hole.
At this time when everything is prepare the cap will be destroyed or evacuated.
If you PLUSIEUR exhaust pipe on a same I recommend commancer by the evacuation which is the outside) the first) most upstream.
Good unclogging;)
Ps: if the bladder inflates it will explode too.
pvc pipe supplied didnt use if you really viulez well vius use the drain cleaner.