How often do you change your R.O. filters?

Changed 1 time in 1 year ;D still 0-ppm

 

BTW....I thought that this link would be useful on this subject. Most people can check their water quality online.

http://www.epa.gov/safewater/dwinfo/index.html

 

Not to hi-jack or anything, but what products do u use to test ur TDS? Have had my RO/DI system for about 9 months and just assumed I would replace filters every year...guess I might not need to do that after all!

 

I have the digital TDS meter from Air Water and Ice:
http://www.airwaterice.com/

Check it out, good deal.

 

Hrmm, my RO/DI system is scheduled to arrive tomorrow, so I have no idea what the TDS in will be, or when to change my filters. I have read, however, that replacing the sediment filter at least every 6 months can greatly increase the life of the RO membrane. The unit I ordered comes with a TDS meter and a pressure gauge. I guess the theory is that the pressure gauge will show when something isn't flowing as freely as it should, thus indicating a filter in need of replacement.

 

OK, now I have the RO/DI installed! ;D

158 ppm out of the tap
156 ppm out of the Pur water filter (on kitchen sink)
0 ppm from RO/DI ;D

Now I just need to comfort myself and test for ammonia, nitrate, phosphate, silicates and anything else I can think of.

 

Woooo Hooo! ;D

 

Good idea testing that Pur water filter... sure didn't seem to be doing much!