DI water only

StevenPro said:
I got a reply from Aquatechnic once I translated my email into German and resent it. They gave me the name and email address of an individual. I contact him and he replied that his website for selling these units is not up yet. But, he will inform me when he is ready for business. And, when he does, I will pass the information along.
Click to expand...
By the way, the new US distributor is still not ready to go yet. Still working on the website and getting the first shipment of product.
 
How's this for not wasting water:

I have a RODI unit with a two stage DI because our city water has chloramine and a mixed bed would not remove the ammonia. So, I make ASW using the RODI water, and the waste water goes into my washing machine to do the first step in washing our clothes.

I use the ASW at 35 ppt to do water changes on my 55 gallon reef display. I also use RODI water to top off the display and my grow out tanks, as I am raising clownfish in my basement.

The water I take out of my reef tank during the water change gets filtered thru one or two Bounty paper towels, and diluted to 25 ppt with more RODI water and is used to do a water change on the fish only grow out tanks. Water pulled out of the grow out tanks is similarly filtered and chlorinated with 1 ml bleach per gallon and stored until use.

I use this water after dechlorinating to propagate phytoplankton and rotifers to feed my clownfish larvae.

So my water and salt gets used 3 or 4 times before being flushed. There is no waste.

Do I get an award?

YES! I save money on salt and water. Not to mention it is very easy NOT to make up saltwater for all the things I have going.
 
Is the Kent Marine as good as the german model that is not available yet. I have been looking at an RO/DI unit but after reading this I may go with DI only. It seems to make sense for me. I only use 10 gallons a week or less on average so i will not have to recharge as frequently as someone using more water. I am new to RO or DI so are these units plug and play or is there some plumming for the Kent or German DI units mentioned above? Thanks.

Walt
 
The kold sterile unit is fine as far as water quality and no waste water are concerned, but you have to shell out $$ for the replacement filters since you cant renew them cheaply, like you can with separate bed DI.
 
So Anthony, I have made it thru the thread but I want to pin you down on your opinion, after all thats why most of us frequent the site,all of the other info aside. Do you think these German resins are better than the ones discussed from US or is it truly a function of original water quality. I have been someone who has tried just DI it was the kent 200whatever and I got less than 30 gal. Like one of the users above I would barely complete the rinsing process before the resin needed recharging.Are people like us just out of luck or do you have suggestions. What method did you use to regenerate. Did you make up a seperate drip station if so what did it look like.While a wealth of info can be attained from searches as is witnessed on this thread there are many different views and missinfo. I personally care to here yours. You cant argue with your success. Keep up the good work.
 
I read through the thread, and I didn't see this, so..... Which is for which? The muriatic acid, and the Red Devil Lye.

I picked up the Kent unit, and am ready for the first re-charge. The first one went quick, but I was told it was probably because there was carbon dust in the carbon cannister. Hoping the re-charge last for more than a week. ;)


Thanks

Larry
 
Steven Pro said:
I cannot for the life of me understand how having two resins, in one instance mixed and in another instance separate makes any difference whatsoever.....
Click to expand...

While it may sound logical that a two bed system should give you the same results as a mixed bed ... it does not and there really isn't any much serious debate outside of various aquarist forums.

I suggest you expand your research to include various industrial applications ... perhaps including hemodialysis within your search parameters as almost all medical applications that utilize deionized water require a mixed bed approach.

Not sure but I expect the reason for the superior performace of a mixed bed is Ph related. Certain ions are more readily exchanged within certain Ph limits. Since the first bed in any dual bed system will signficantly alter the PH (up or down depending on whether your using cation or anion) the source water for the second bed may have a PH that inteferes with the effectivess of that resin.

From a practical perspective I suspect that a dual bed system provides more than adquate water quality for most aquarist ... however thats going to be depedent on what water quality issue one is fighting.
 
Just to add to this forum I've been using the Aqua Pharms DI filter for several years off and on.
Earlier it was mentioned that the quality of water may change depending upon the season etc.

Living in Maryland, I've noticed our local municipality water treatment facility has pretty good water in the summer but come fall and winter it's completely different.

The cartridges sold suggest you could possibly get up to 150 gallons from the mixed bed DI unit depending of course upon your source water.

In the summertime I've gotten up to 80-100 gallons of usage before the resins change color.
Last week I got 40 gallons out of one cartridge. (November)

I don't use a TDS meter so I can't give results other than to say when and how much water went through before resin color was noticeably different, as I've mentioned above.

My concern goes back to what was mentioned earlier with capture or lack of chloramine in a DI/Carbon only system, and how often am I going to have to recharge the seperated kati and ani resins?
For someone who does this as a part of there income and can afford the ability to have time to recharge these resins it is of course more sensible.
With as much maintanence and time spent doing so versus what time is already eaten up in daily living what may be sensible financially is not always practical according to our schedules.
 
I can't find pure lye anywhere in town. It seems all the hardware stores have quit carrying it because of the methheads.

Any ideas on other local sources? What industries use the stuff?
 
<a href=showthread.php?s=&postid=6269432#post6269432 target=_blank>Originally posted</a> by kevin2000
Used to be the main ingrediant in many drain cleaners ... might check some labels on various drain cleaner products.
Click to expand...
That is what I use, Red Devil Lye, a drain cleaner/declogging product available at the grocery store.
 
I am not sure how to handle this, so mods feel free to correct this post.

Anyhow, Kip Tani is about to receive his first shipment of Aquatechnik Kati-Ani units from Germany. I am reluctant to post Kips' email in this thread for several reasons. One, I don't want to be in violation of the commercial posts rule. And secondly, I don't want some web crawler to pick up his email and flood his inbox with spam. If anyone is interested in buying a Kati-Ani, PM or email me and I will give you Kip's email address.
 
all good... handled well Steve. Thank you. It's fine to reference a merchant that you/we (the poster) has no affiliation with.

It's the merchant that cannot shill their own products (or excessively/suspiciously enthusiatic individuals otherwise) so that we/RC can stay non-commercial for the sake of focus on reef discussion content. And this is reef discussion :)

Thanks again for the tip about ktani.
 
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