It could have a one-way valve in it which could be sticking or faulty. If it is pump driven it will have a pressure switch on somewhere, the cistern should fill with water which will cause the switch to activate which will shut down the pump. Check if switch or pressure valve as could be … Read more

Ear piercings get infected if not carried out by reputable companies. So Tongue piercing is as risky with infections spreading in mouth to gums. As for killing you I would say very rare these days!