TDS on the rise, is it time to replace?

btang · 04-13-2005, 07:24 PM

I am runnung a Kent R/O 3 stage with a HI-s filter. My TDS is running at .037, is it time to change the elements? Filter has been up and running for about 6 months now. Would I change all 3 elements plus the Hi-S element?

tims · 04-13-2005, 08:52 PM

the kent web site does not have any manuels on that system, does the packaging have anything in it to give you numbers to look for?
depending on how your water ( city/well) is it may be time to flush the system adn change out some of the filters, if your system gets alot of use you will have to change out even sooner.

Junkzoo · 04-13-2005, 09:22 PM

Like Tim said, also, what are your readings on input water? and what were the TDS from the DI while it was new?
The TDS readings are more like a ratio 'tween input and product water,,,and how well your system is producing end result water,,,

wharyat · 04-13-2005, 10:06 PM

From what I've heard 1-2ppm is when to change DI and prefilters. RO membrane should last for 2-3 years.