Quote:
Originally Posted by EdFNJ
You have (or are using) different filters than I was provided with by Nova. I even saved the labels that were on them when I got them dropped off.
The filters I got directly from Nova were Valutrex VX There were 2 sediment filters (1of 10micron and 1 of 25 micron) and one Hydronix 5 micron carbon block filter. I'd be curious to know if they provided ones similar to what you are listing or you selected to use different types.
I have bought them on my own over the last couple years mainly for the convenience of not having to try to get a hold of them. Pricing for the 3 wasn't much less than they were charging but I am always able to come up with coupons of some sort. 
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When Nova first installed my first system, Bob used the 3 following filters (I kept the labels):
1st Stage : Sediment Filter (5Micron), 2nd Stage GAC Block (Granular Activated Carbon), 3rd Stage Carbon Block (5Micron).
I ordered from Amazon and replaced regularly for over 5 years. When we moved to our current villa, I had Nova system installed again this time by Bob's son Brad. Brad did a great job and I noticed he used better pressure gauges and better turn-off valves than what had been installed with my earlier system. But, when I went to change the filters in our villa for the first time I noticed that there were 2 sediment filters and 1 carbon block filter.
I believe the original system (1st Stage : Sediment Filter (5Micron), 2nd Stage GAC Block (Granular Activated Carbon), 3rd Stage Carbon Block (5Micron) did a better job than the new installation. The GAC made a big difference. I don't know why Nova changed the filters, but I think the Granular Activated Carbon filter (#2 in the middle) makes a big difference. The first filter removes sediment. I don't think two sediment filters is needed.
The GAC carbon filter for chloramines and chlorine removal. Without the GAC we noticed a chlorine odor. With the GAC filter we don't smell the chlorine. YMMV
I am a fan of Nova. If we move again, I will have it installed before we move in. Beside, the boss wouldn't drink the water without the Nova system, and I don't want to haul jugs of water.