I've posted this before .

Ronny#66 · 07/04/2008, 10:50 AM

Ive had my RO/DI a year in august have made about 308 gallind of RO/DI water . TDS in is 0 out is 0 . pressure out of carbon is 70 lbs . i see no reason to change the filter cartriges till TDS raises out and pressure drops about 5 lbs. Am I out to lunch here on this issue ?

kau_cinta_ku · 07/04/2008, 11:09 AM

the biggest reason to change your filters (the carbon and sediment) is due to bacteria increasing on them. and for 5.00 for new filters to save the membrane later on I don't see why you wouldn't want to

Ronny#66 · 07/04/2008, 11:12 AM

There $34.00 for the three .

kau_cinta_ku · 07/04/2008, 11:15 AM

34.00 for carbon and sediment filters? I would find a new place to buy from lol.

you don't need to change your membrane or DI filters, those you only change when TDS rises.

Playa-1 · 07/04/2008, 11:43 AM

The word on the street is you should change carbon and sediment filters about every 6 months or when it is depleted which ever comes first. The RO membrane will last much longer and you will address bacterial issues by changing them.
I also think $34 seems a bit pricey.

snorvich · 07/04/2008, 11:51 AM

$34 is a bit too high. But changing them is a cheap option to protect your more expensive filters even at that price.

Ronny#66 · 07/05/2008, 07:36 PM

I baught the sediment , carbon and DI resin from filter guys. Was 1/2 the price the DR.Foster and Smith wanted . So where are you geting a $5.00 cartrige ?

kau_cinta_ku · 07/05/2008, 09:08 PM

bulkreefsupply.com

Flipper62 · 07/05/2008, 10:44 PM

Hhhhmmmm........Bottom line is. Ya...rule of thumb ( NOT SURE WHOS THUMB )....6 months & the filters should be replaced. BUT......AND ITS A BIG BUTT. It all depends on the number of gallons that have filtered through the RO/DI filters. AND when & how often the filters were used.........HOWEVER. It all comes down to this......If the RO/DI water has a TDS reading of 0.0.....Its all good.

If you see an increase of TDS to 0.12 or so.......Keep an eye on the TDS raise......thats your clue to replaceing the filters.,

Its not rocket sience..... OUT Water of 0.0 TDS.....IS 0.0 TDS

The filters are not playing a joke on you

kau_cinta_ku · 07/05/2008, 10:49 PM

Quote:

Originally posted by Flipper62
Its not rocket sience..... OUT Water of 0.0 TDS.....IS 0.0 TDS

actually if you want to get into details, not always does 0tds mean 0tds

http://reefcentral.com/forums/showth...hreadid=898154

07/04/2008, 10:50 AM	#1
Ronny#66 Registered Member Join Date: Apr 2007 Location: Twilight zone Posts: 1,839	I've posted this before . Ive had my RO/DI a year in august have made about 308 gallind of RO/DI water . TDS in is 0 out is 0 . pressure out of carbon is 70 lbs . i see no reason to change the filter cartriges till TDS raises out and pressure drops about 5 lbs. Am I out to lunch here on this issue ?

07/05/2008, 10:44 PM	#9
Flipper62 Premium Member Join Date: Apr 2008 Location: Naperville, Il. Business Owner, President & CEO Posts: 3,045	Hhhhmmmm........Bottom line is. Ya...rule of thumb ( NOT SURE WHOS THUMB )....6 months & the filters should be replaced. BUT......AND ITS A BIG BUTT. It all depends on the number of gallons that have filtered through the RO/DI filters. AND when & how often the filters were used.........HOWEVER. It all comes down to this......If the RO/DI water has a TDS reading of 0.0.....Its all good. If you see an increase of TDS to 0.12 or so.......Keep an eye on the TDS raise......thats your clue to replaceing the filters., Its not rocket sience..... OUT Water of 0.0 TDS.....IS 0.0 TDS The filters are not playing a joke on you __________________ If todays automobile had followed the same development as the computer, A Rolls Royce would cost $100.00. It would get a million miles per gallon, but it would explode once a year killing everyone inside." Current Tanks... 90 gal Reef... My awesome Office BioCube....( 180 was on hold ..no time ) ... The 180 gal has been sold...Yay..yay..yay. Hobby Experience: 19 years Reef...22 years FW

07/04/2008, 11:09 AM	#2
kau_cinta_ku Moved On Join Date: May 2005 Location: NW Iowa Posts: 8,669	the biggest reason to change your filters (the carbon and sediment) is due to bacteria increasing on them. and for 5.00 for new filters to save the membrane later on I don't see why you wouldn't want to

07/04/2008, 11:12 AM	#3
Ronny#66 Registered Member Join Date: Apr 2007 Location: Twilight zone Posts: 1,839	There $34.00 for the three .

07/04/2008, 11:15 AM	#4
kau_cinta_ku Moved On Join Date: May 2005 Location: NW Iowa Posts: 8,669	34.00 for carbon and sediment filters? I would find a new place to buy from lol. you don't need to change your membrane or DI filters, those you only change when TDS rises.

07/04/2008, 11:43 AM	#5
Playa-1 Moved On Join Date: Jun 2007 Location: Laguna Niguel, CA Posts: 7,497	The word on the street is you should change carbon and sediment filters about every 6 months or when it is depleted which ever comes first. The RO membrane will last much longer and you will address bacterial issues by changing them. I also think $34 seems a bit pricey.

07/04/2008, 11:51 AM	#6
snorvich Team RC member Join Date: Aug 2005 Location: Outlander Posts: 40,953 Blog Entries: 46	$34 is a bit too high. But changing them is a cheap option to protect your more expensive filters even at that price. __________________ Warmest regards, ~Steve~

07/05/2008, 07:36 PM	#7
Ronny#66 Registered Member Join Date: Apr 2007 Location: Twilight zone Posts: 1,839	I baught the sediment , carbon and DI resin from filter guys. Was 1/2 the price the DR.Foster and Smith wanted . So where are you geting a $5.00 cartrige ?

07/05/2008, 09:08 PM	#8
kau_cinta_ku Moved On Join Date: May 2005 Location: NW Iowa Posts: 8,669	bulkreefsupply.com