Which Water Purifier : TDS+ELECTROLYSIS TEST. Review on Choosing a Water Filter

I have gone through google to get knowledge and to make decision  which is the best water purifier, even I have read reviews on Mouth Shut as well.

First thing about customer reaction:

But those reviews are made on different situations like servicing and broken product and they write complete story, each small conversation with vendor, not clear about the purity of taste. and 15 will be in favor and 15 will be in oppose of particular product.

Second thing:

Most of the dealer try their best to convince customer, like 6 filter stage, 8 Stage filter and so on. who knows what is the quality of Filtration.+ALWAYS DO THESE TEST BEFORE BUYING WATER PURIFIER+I Gone through TDS Testing and Electrolysis as well, My drinking water gives TDS from 220 to 143(Variant) and for result of Electrolysis I have attached images.

Water TDS in my area=143 to 220. Reult of Electrolysis: water color gone black/green, for TAP water and for Boiled water its color gone little more black(AFTER gone through 2 minutes ELECTROLYSIS electric instrument). I couldnot upload files of water because upload limit is 5mb(only 2 files can be uploaded, so I have uploaded electronic machines photos)

KENT WATER PURIFIERS: I have got info from one local agent of KENT/AQUABERRY, that in KENT one alarm is fitted because of that even if any filter goes out of order, alarm will not alert because its programmed like that.(NEED TO CONFIRM FROM MOUTHSHUT).

I got Info that AQUABERRY water purifier is assembled by local vendors, so they provided better user friendly filtration(Its not Computerized controlling alarm, even one filter goes out of order it will stop working, so customer will come to know immediately about replacement)

Please suggest how to ensure about quality of WP, which worth our hard earning money. can we go for local WP instead of Branded one. I am thinking about AQUA-GUARD MEGHANA. DO we really need UV+UF  apart from RO.