Hi all, At the moment I've been cleaning traditional for just a few months. I ordered a TDS which has just arrived and tested out water from the tap. It came out at 069 PPM. To my uneducated eye, this seems quite a low count. Is that right? Q1. Would this quality be good enough to use on a WFP without using Di and filtration systems? Q2. Is the reading from our tap water likely to stay consistent or can it vary enormously? Many thanks, Neil.