Hooking up ro unit.

[Second Hand Pat]

Zach, how did you add the buffer? If you have not already add aeration to the water to thoroughly mix everything from the bottom of the container to the top. A power head will serve the same purpose.

[TURQ64]

I'd be doing more investigating as to why the shift is happening in the tank..RO isn't an additive, so something real is altering the product. Buffers are a hard road to go down raising Discus due to WC frequency...Something's still up.....BB tank, or rocks,gravel, substrate??

[zchauvin]

I'd be doing more investigating as to why the shift is happening in the tank..RO isn't an additive, so something real is altering the product. Buffers are a hard road to go down raising Discus due to WC frequency...Something's still up.....BB tank, or rocks,gravel, substrate??

Just toy sand, nothing else. I'm at a loss. But the tank isn't the problem, the tds went down because I had a higher ro/tap ratio so that's right, its just that my ph goes from 6-8 after aging...

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[Discus Origins]

Two things not adding up...post membrane product water should be 5-10ppm with new unit, when it gets up to 25-30ppm that's when the membrane should be changed. Second, ph of product water is usually 7 or just below. Def something wierd going on but prob will help us all when you test the KH, GH of tap and product water.

If you are trying to achieve softer water, you shouldn't use discus buffer...it's phosphate based and adds back the very junk that you were trying to take out in the first place. Your tap is so hard that it should have enough buffering capacity to help stabilize ph. I agree with Francis, ph measurements of RO water is not accurate so I would trust more in whats happening in the tank once post WC.

[DiscusOnly]

How are you testing your TDS? Did you get an inline TDS meter attached to your RO unit? I agree with Mark about something not being right if you get 25-30ppm on a new RO unit. I use an inline TDS meter on my unit with IN=109ppm/ OUT=6ppm

Van

[zchauvin]

I'm using a ez-tds tds meter off of eBay. My tap tds is 380 and tds out of ro 0. Then when I tested it again a few days later it said 30- perhaps something leaking from brute can? Ph has always been 6 from unit, then 7.6+ after 24h aging. Tds of tank water is 101 with 60g ro and 15g tap- when I added ro water it had not aged yet thus why the ph spiked in tank as it did in water storage. The only time my tds jumped greatly in water storage is when I added discus buffer-131 then back down to 101 once it finished filling with ro. And for a side note, the first time I got the 30tds reading was once I removed Di canister

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[zchauvin]

Will a saltwAter kh kit work?

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[jimg]

tds is high because it is new, been through that a few times.
your tank/barrel ph is probably high due to you tap probably has high kh and you added tap to it.
I said a discus buffer type product, not necessarily meaning discus buffer itself. I don't use buffers any more so I am not up to date on exactly which discus buffer it is but there are some that will lower the ph, raise kh and keep it there. It all depends on the kh which you use
my ro is 6.4ph with 380 tds so there is nothing wrong with your reading there.
does not matter where you get the ro units from, they are all nothing but plastic housings. the filters do nothing other than keep the membrane cleaner and chlorine free so it lasts longer, most all have filmtec,ge membranes. from what I understand the other companies that have their name on them buy them from dow, there is supposedly only a couple of companies that manufacture membranes.
I doubt there is anything wrong with you tds meter or ph test kit.

[zchauvin]

Well I checked earlier and ph stayed same in water storage with the buffer added but tds is now 110ish. Ro tds coming out is 0- think I was getting tds leak due to my water barrel being full. Just have to get this ph to stop rising from 6- to 7.6 ish. I got a kh test kit but says saltwater... Will it work?

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[jimg]

not sure if the salt water kit will work

[zchauvin]

not sure if the salt water kit will work

And I just went to lfs and they gave me it..... ****

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[jimg]

I hate to rain on you parade but I have never seen tds from ro around 400 with 0 tds! i didn't ruin it for ya did i?

[jimg]

And I just went to lfs and they gave me it..... ****

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you didn't expect them to let you walk out without buying something!
Check online see if it's the same

[zchauvin]

I hate to rain on you parade but I have never seen tds from ro around 400 with 0 tds! i didn't ruin it for ya did i?

No, it was 16 not 0 but thanks

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[jimg]

if it's 16 that means it's working fine now.almost all of mine start out a little high as I mentioned then come down. it will probably stay about there or it may get a little lower if it were a 75gpd I would say it should be about 10 or so. now we work on ph