First diagnose what is the problem with the power shower pump and if you are unable to find the issue, call a professional expert who can check and solve the problem.

This is due to the some internal blockages or water flow problem. The internal pipe is not working due to the some improper working of  vent pipe.There is possibility of some garbage stuck at toilet and the plumbing pipe were chocked. So make sure for removal the garbage from pipe or call to plumber for … Read more

Well , try hitting it  with  a hammer then it will loose or try different techniques like try to pull hard with a tool or apply different lotions on it to loosen the fitting......