ive never changed my ro

I've had my to system for a year ands half and I've never changed any prefilters or anything.my tds after my sediment filter is usually around 10 and still pretty much 0 after the carbon blocks...should I be changing them soon?

 

If they're still kicking out 0 tds I wouldn't worry. Once they start to creep up I'd change em. Now might be a good time to order filters though if you haven't got em already. They always seem to go at the worst time and we never have backups lol.

Jake

 

i have sediment and carbon filters no ro or di or silica buster stuff

 

Well, after RO is 2 for me. Its a BRS 5 stage and 7 months old. Just changed the DI resin recently because TDS after DI was showing 1.
Just like Jake said, as long as you get TDS zero water, you are fine.

 

NO NO No.

The reason you change the sediment andcarbon block is twofold or more.

For one it traps sediment, silt, particulates and colloidal materials so it does not get to the carbon block fouling its billions of tiny microscopic pores which is where chlorine is adsorbed. If the carbon gets fouled or exhausted by trying to extend its life you run the risk of ruining the RO membrane since they have zero tolerance for free chlorine.

Second, when the filters begin to plug the pressure available to the RO membrane drops lowering its removal efficiency or rejection rate and its GPD capability. Membrane life goes down and especially DI life goes down.


Sediment filters and carbon blocks have very little to ABSOLUTELY NOTHING to do with TDS. They remove suspended solids, bog stuff like the sediment and silt, not dissolved solids which are in the 0.0001 micron range and the job of the membrane and DI. You CANNOT tell the condition of a sediment filter or carbon block with a TDS meter...

Most importantly of all, the reason to change the sediment filter and carbon block every 6 months is health. Once they begin to plug or foul the carbon block provides the perfect breeding ground for bacteria, viruses and algaes, any waterborne diseases or problems. Since the carbon has removed the residual disinfectant, chlorine, from the water, you have no protection from the above. You now have no disinfectant, warm water flowing slowly or sitting stagnant, possible bright lighting from room lights or sunlight and whatever has collected on the filter elements. Not to alarm you but I have personally seen people sick to the point of needing medical care and in a couple cases hospitialization from un maintained RO uints. Itr is very real.

Make sure you replace the filters every 6 months and disinfect the system with bleach at that time. Your RO vendor can provide instructions of search here and you wil find I have posted them many many times. Use the unit at least every 10-14 days and store it in a climate controlled area when not in use away from direct lighting and temperature extremes. Always leave water in the housings and protect the ends of the tubing from contamination.

Loneracer05 is very fortunate to live in the NY area, they have extremely low TDS in their tap water. But, on the other hand, they have one of the highest sediment loadings or suspended solids levels in the country too since much of their water supply is untreated even still due to the way they protect their wate rimpoundments. The EPA is fining the water utility daily until they get treatment plants constructed and in use but its still amazingly safe. Loneracer, it sounds like you do not have a RO/DI system, just a sediment filter and a carbon block? If so you should still keep up with replacements for your tanks sake and I would suggest a RO/DI. I know people in the NYC area with 50-60 ppm TDS but sediment filters and carbon blocks don't last long due to the colloidal materials and silt, they plug quickly and cause problems for the RO membrane. There are filters designed specifically for your area that will last about 10x longer due to their pleated construction though and they work quite well.

 

i have a full ro di unit its a spectrapure maxicap system.im not in nyc im on long island im fairly sure we are on different water then the city. my tap tda is usually around 80ppm. i use my ro about 20 gallons every other day and flush it after every use. i will change the prefilters tomorrow. thanks azdesertrat your help is much appreciated

as a side note im adding another membrane to the system to make 180gpd do i use 1 restrictor or 2?

 

The dual membrane piggyback kit comes with a different flow restrictor in the package.
PBK-90-SEL 90GPD TESTED MEMBRANE PIGGY-BACK KIT $65
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