# Upgrade in water purifier **URL:** \ **Category:** Design Chat\ **Created:** [July 13, 2020, 7:29am UTC](https://metastudio.org/t/upgrade-in-water-purifier/4298 "2020-07-13T07:29:40Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Farhan](https://metastudio.org/user_avatar/metastudio.org/farhan/32/5686_2.png) [@Farhan](https://metastudio.org/u/Farhan)\ **Post date:** [July 13, 2020, 7:29am UTC](https://metastudio.org/t/upgrade-in-water-purifier/4298/1 "2020-07-13T07:29:40Z")
I want to **upgrade** Water Purifier to clearly display the purity of the water, for eg.(add-TDS meter) ---
**Author:** ![singh](https://metastudio.org/user_avatar/metastudio.org/singh/32/20063_2.png) [@singh](https://metastudio.org/u/singh)\ **Post date:** [July 13, 2020, 9:11am UTC](https://metastudio.org/t/upgrade-in-water-purifier/4298/2 "2020-07-13T09:11:24Z")
Great idea! I think it should be an integral part of a water purifier. However we would like to know what kind of water purifier do you have? What is the purpose to check the TDS? Will the water purifier make some automatic adjustments based on the TDS level? More importantly - **How pure is pure water?** Is it absence of pathogens or absence of chemicals and minerals or both? ---
**Author:** ![jtd](https://metastudio.org/user_avatar/metastudio.org/jtd/32/244_2.png) [@jtd](https://metastudio.org/u/jtd)\ **Post date:** [July 14, 2020, 8:25am UTC](https://metastudio.org/t/upgrade-in-water-purifier/4298/3 "2020-07-14T08:25:34Z")
I assume that TDS sensor in a water purifier is to keep a check on the filters. If the filters are not working satisfactorily it should result in rise of TDS in the water. A sensor would help in providing a warning. ---
**Author:** ![singh](https://metastudio.org/user_avatar/metastudio.org/singh/32/20063_2.png) [@singh](https://metastudio.org/u/singh)\ **Post date:** [July 14, 2020, 12:28pm UTC](https://metastudio.org/t/upgrade-in-water-purifier/4298/4 "2020-07-14T12:28:57Z")
What would be ideal TDS of water.? My RO gives a consistent TDS of 13.