I bought this recently, about a month ago. I thought it would be great to have a light that tells me when I’m supposed to change the filter. As a single person who lives alone and who drinks 2 litres of water a day I’d expect it to last 90 days at the very least. I am shocked that after 30 days the light is flashing therefore supposedly meaning I would need to replace the filter now. This feels like a sales push to me. Very disappointing.