Disinfecting rodi?

[celano]

I'm about to change the fliters on my Maxxima and was wondering if I should disinfect the housings? If I should what should I do it with? Would a mild bleach solution work ok or is there something else that is safer?

[cham]

About once a year you should sanitize your entire system - its easy and you'll be done in less than an hour. Here are the instructions:

We recommend sanitizing your RO/DI system approximately once per year. Schedule this process at a time when you are planning to replace your cartridges. These instructions apply to water purification systems without a pressure tank. Before you begin assure that you have about an hour available, and that your work area and hands are clean.

Turn off the water supply to the system.

Remove all housings and remove all pre-filters and post-filters from the system including sediment filters, carbon filters, in-line filters, and deionization cartridges. Remove the reverse osmosis membrane(s).

Wash housings with a soft brush or cloth in warm soapy water. Rinse thoroughly to remove all soap. Don’t forget to carefully remove and wash all o-rings. Lubricate the o-rings with a small amount of silicone grease and reinstall them.

Fill each vertical housing with one cup of potable water and three to four tablespoons of household bleach, and with this sanitizing liquid still in the housings, screw them back on to the system.

Turn on the water supply a bit, allow water to fill the entire system, and assure water is flowing out of the waste line and the purified water line. Place the outlet of the drain tube and purified water tube slightly higher than the system to assure these tubes are full of the sanitizing solution. When the sanitizing solution has reached the outlet of each tube, and with the outlet of each tube placed above the rest of the system, shut off the water supply for 30 minutes.

After 30 minutes, turn the water supply on and assure that water exits the system from both the drain tube and the purified water port. Flush the sanitizing solution from the system for 5 to 10 minutes.

Turn off the water supply and install new filters.


Courtesy of Buckeye Field Supply

[celano]

Thanks Cham! Thats exactely what I was looking for.

[Buckeye Hydro]

Great to see someone doing this. Its got to be the most overlooked task on these systems.

Russ

[cham]

Originally posted by BuckeyeFS
Great to see someone doing this. Its got to be the most overlooked task on these systems.

Russ

I agree. I followed the instructions to a T.

Strangely it made the reading on my HM Digital dual TDS go wacko. I had to send it back to them for repairs (still under warranty) and my carbon (2nd stage) seems to be dripping ever since too.


Notice I gave you credit on those instructions BTW

Russ has always been extremely helpful. Great customer service.

[celano]

I'm gonna bump this back up because I'm getting really frustrated with my rodi unit and I hope someone can tell me what I'm doing wrong.

I just purchased brand new filters for my Maxxima and I'm still getting a .25 ammonia reading.....I don't know what the heck the problem is. I followed the disinfection instructions to the tee and the filters are from a reputable sorce....
Can anyone give me some advice cuz I'm about to trash the whole damn thing and start over with a new rodi unit....

[Buckeye Hydro]

Do you have chloramines in your water?