Both are at fault here. The manner in which shilpa took what hina said to her was negative. She mocked hina too saying 'oh hello, woh pani boil hota hai achche se'. The tone in which shilpa replied too was derogatory like, oh hello who are u to teach me. Which probably pissed hina off. Hina had and didn't have a valid point here. Not because water was muddy but because tap water can be dangerous in more ways than just being muddy. By heating bacteria are only destroyed. Some viruses and spores are resistant to boiling. Not to mention tap water has higher amounts of arsenic which can cause cancer and a variety of other problems. So yes, using tap water for cooking is wrong. It is better to use RO or some type of filtered water where all these things are taken care of.
And hina Ka pet kharab was definitely not coz of using tap water, it was because of the unhygienic methods that she herself adopts. I heard that she uses only sanitizer after using the loo. Keeps shoes on the bed and eats on it too. So Miss hypocrite khan should correct her own self first before blaming others for her misery.
Today, shilpa too did not understand what hina was trying to say. Hina wasn't entirely wrong but shilpa took it personally and made a big deal out of it. It was totally unnecessary. Hina wasn't even rude to her when she said it, but looking at shilpa's attitude and the way she spoke, like, 'hello, woh boil hota hai usme'..'kal se aap bhar ke rakhna bartan mein' hina got irritated. Shilpa should've understood what hina was trying to say and hina too shouldn't have used that an excuse to fight with her.
Both these ladies have inflated egos and a little maturity was required on both their parts. Hina se toh expected tha, but didn't expect this from shilpa. Even when vikas spoke to her nicely about not using tap water, she got defensive.
The irony of the whole situation was Arshi saying u should boil the water before adding it to the gravy and she herself adds water without boiling. Clearly aag lagaayi khud ne and then watched the tamasha. Idhar se shilpa ko console kiya aur udhar jaake hina ke saath uski bitching ki. Sometimes it really makes me feel that all these fights are scripted. Itna bada issue hi nahi tha ye that so many debates are happening on the forum and on social media.