A flat owner in a Maharashtra housing society is facing issues with the society regarding internal piping to transfer water from the kitchen inlet to the bathroom tank. The society claims this is 'double tapping' and an alteration, demanding its removal. However, the owner argues they haven't increased their water intake or tampered with the main supply, only rerouted it internally. Experts suggest that societies generally cannot interfere with alterations made inside individual flats, as long as the water quantity drawn doesn't increase. The owner is advised to present their case formally and consider legal action if necessary.