ro di question

[blazehok68]

how often should a person change the membrane in their ro/di unit? also is it possible to upgrade it to more gallons per day? should you change every compartment or just the membrane? it is a 6 stage ro di and ive had it for about a year now. it seems like the unit has slowed down a little bit since when i first got it.

 

[jackolopolis]

I have had my ro for about a year now also. I just changed my sediment and carbon blocks, and noticed an increase in production. They tell me a membrane will last about 2 or 3 years. You will know when it is time for a change by testing the hardness of the output water. I also flush mine off about once a week. That really seems to help also.

 

[mr. green]

You may want to check your TDS before the DI and after the DI. If they are still low and after the DI-zero, it may be one of the pre-filters that need replaced instead of the RO. Just a thought, may save some money.

 

[blazehok68]

Thanks For The Responses. I Do Flush The System Periodically Also Because I Heard It Does Prolong Its Life, And I Will Check All Of These Things To See The Results. Thanks Again

 

[mx mr bean]

i have a kentmarine rodi and it says to change the membrane every 25,000 gallons or 3 to 5 years. The sediment filter and carbon should optimaly be changed every 6 months but it depends how much water u make. because u said the product water is flowing slower i think u should try changing those cartridges. and is ur DI cartridge in a clear canister? if so u can tell when it needs to be changed by the color of the resin. for mine it is when the green resin is about an inch thick from the top. I also know when to change it when my TDS meter reads more than zero (like 1 or 2). Flush kits are also very valuable in prolonging ur membranes life since it takes out the contaminants that sit in the membrane.