How often shall the membrans be changes?
501945
Purchase a TDS meter for under $15. Test the water coming out of your untreated tap. Test the water coming out of the new Ro filter. When the treated number drops 20% of it's original number, time to change the membrane. IE: New=100% efficiency, at 80% it's time to change.
501946
I generally change mine every 3-5 years, but it all depends on the level of pre-filtration, the level of chlorine passing through the membrane, the temperature of the water. I use a .5 or 1 Micron Carbon Block pre-filter and change it every 6 months. TFC Membranes have a very low tolerance for chlorine, so if you are not using a quality Carbon Block pre-filter, the membrane will not last as long.
501947
They are not expensive, depending on the usage and your water quality you may want to change it every other time you're changing your carbon and sediment filters.
501948
Use a TDS meter to tell when the membrane needs changing. When the TDS starts to go up its time to change. I typically get 18 months per membrane, but our water is notoriously clean. I only use my RO/DI system for making water for my reef tank.
2123068
Yes, you'll need to change it every month or so. The meter indicator will tell you when to change it. Very easy to change & filters are not expensive
1720329
I change mine about once a year or if the rate that water passes through it slows significantly.
756455
We change ours when it gets crumb, etc in it or when we refill, which ever comes first.
2254429
Yes. The instructions on changing this area really easy to follow. Changing the combination shouldn't take more than a minute.
268142
We usually change it after 2-3 times max with our little one since it's so small anyway and there is usually ample room to go in another spot. If you feel there's not enough room for him to go again, then I would change it.
1248333
That is a good question. We have been using ours for 5 years and haven't changed them so far.
340847
huhit records the current level frequently so over time they will keep changing
677255
I heard from a professional that they should be changed annually, sonthey probably last a bit longer...
1439449
That greatly depends on the home. My previous home would be every month, but my newer home has been fine for three months so far.
1039773
You can change it as many times as you want. Just don't lose the little metal insert that comes with it. That is what you use to change to combination.
1402452
I've never really paid attention, but I have to change them two or three times while I have it out, which is usually about May to October.
514503
That's for one. If your buying cools for under $20 each, you should plan to change them frequently. Once a year or so
1884482
We've only been using them since March...sporadically. So, we've never changed them.
1689121
It depends on the weatherThe hotter it gets the more often it needs to be changedWhen it is in the 70 and 80 30 days is just fine but when it gets above 90 for a extended time change every 15 to 20 days.
321498
It depends on how soon your scale build up on the filter. I change mine once a month from November to April.
469765
according to use, we use ours often so we change bout every 2 months, but it no hassle. Listen when we are on vacation or a business trip, we look at each other and say "I will be so glad to get home to my bathroom". The best part of my $15,000 bathroom remodel. Dont hesitate BUY IT!