RO/DI question

thysrof · #1 12/31/2007, 04:13 PM

When go you replace the filters on the RO unit. Their about 1 1/2 years old and i started with a 60 gal and upgraded to a 120 6 months ago.

Is it the amount of use type of answer?

sulcata1619 · #2 12/31/2007, 05:25 PM

need to check your output with a tds meter.

thysrof · #3 12/31/2007, 06:14 PM

Mike,
What's a TDS meter?

sulcata1619 · #4 12/31/2007, 06:24 PM

Total Dissolved solids. I have one you use to get a reading. my system usually reads down around 2 ppm. Tap water is around 250. Once I get abouve 10 I change my filters. you are most likely due.

sulcata1619 · #5 12/31/2007, 06:26 PM

if you talk with arnold (apon) he can get you a decent discount maybe. I can pick them up for you in Feb at the swap. Or you could come to the swap also, even though you can't participate. You can see how a real frag swap is run.

northbay-reefer · #6 01/01/2008, 12:27 AM

Bob, I have a handheld TDS meter you can borrow to check your RO unit. LMK

gdm42001 · #7 01/01/2008, 10:23 AM

Great place to pickup Replacement Filters and Membranes
I just replaced everything a few weeks back.

northbay-reefer · #8 01/01/2008, 01:41 PM

Guy, great site and great price. Thanks

thysrof · #9 01/01/2008, 03:11 PM

I think I'll just go ahead and replace the parts considering their 1 1/2 years old.

I've got a Spectrapure Mpro-25. If i got it right I need the 10" Carbon and Sediment filters and the 1.8" x 12" TFC membrane.

Thanks,
Bob

northbay-reefer · #10 01/01/2008, 05:36 PM

Bob if you are replacing membrane, get the 75 gal/day filmtec one it blocks out 99% compare to the 100gal/day one which only block out 95%

sulcata1619 · #11 01/02/2008, 12:14 AM

Those are great prices. I think I paid 100 bones on my last membrane locally.