Automatic Water Top Off

[Donw]

I've spent alot of time playing with this over the past few weeks. Using a conductivity meter instead of tds Ive found there are two ways to accomplish getting rid of the tds creep. Either by bypassing the inital start up water to the waste as with the spectapure system. Ive been doing this for a few years or flushing just prior to the shut down recommended by dow. Either one produced the same results, 0 conductivity on start-up.

Don

 

[mrvinman]

Well Jdieck,

It seems the more posts on this, the plot thickens.
I will check out the SpectraPure plus the other ATO's people have reommended and weigh all the options. But the fun is in the learning!

 

[jdieck]

Good Luck, let me know if you need more info.

 

[Zoom]

Are we getting to paranoid with the tds creep ?
I have use direct RO/DI feed to my sump with very slow Ro/DI system about 20 GPD i have a 50G sump and the ATO system fills the sump up to about 8" when the water level gets down to 6" the ATO starts and fill the sump with about 4 gallons of water yes i get some TDS creep i check it with a conductivity meter but is not that bad is much better than when the water stays in my BRUTE plastic trash can reservoir for five days . I feed two times a day and i have open top tank i get many things in the water that is much more damaging to my water quality that my small TDS creep from the RO/DI ATO unit.

 

[oceanus_systems]

ato

ato

We have also tested tds creep and conductivity and is very low.zoom is correct about water quality from air born bactria (dust) is higher We also recommend installing any solenoid activated top off after your carbon filter on any ro/di before going to ro membrane this way will protect solenoid from getting debris in it and also will shut off your waste water. We also have timer options
Thank you Oceanus Systems

 

[cybertec69]

Re: Re: Automatic Water Top Off

Re: Re: Automatic Water Top Off

<a href=showthread.php?s=&postid=8517296#post8517296 target=_blank>Originally posted</a> by cybertec69
do what I did, go to www.autotopoff.com , and get the dual switch controler and dual solenoid valves, the controler goes directly into your sump, and the solenoid valves by the cold water line, here are some pics of my setup to give you and idea, the last six pictures on my webpage http://cybertec.smugmug.com/gallery/2059513 , any questions just let me know, this settup works flawlessly for me.

no TDS creep with my setup, plus every week I fill a 5gal bucket with RO/DI water, so my RO/DI unit get plenty of flow, and I also flush the membrane every week.

 

[mrvinman]

Well, I just ordered an Oceanus Systems Atlas. Not cheap!
I'll let you know how it turns out. Thank you all for the feedback.
I was leaning that way but I think the posts on minimal TDS creep kind of helped get me off the fence.

 

[Donw]

Re: Re: Re: Automatic Water Top Off

Re: Re: Re: Automatic Water Top Off

<a href=showthread.php?s=&postid=8523004#post8523004 target=_blank>Originally posted</a> by cybertec69
no TDS creep with my setup, plus every week I fill a 5gal bucket with RO/DI water, so my RO/DI unit get plenty of flow, and I also flush the membrane every week.

You will still have the initial tds creep but you get a added bonus of biofouling the membrane. You should be running the membrane at least once every 24hrs.

Don

 

[badgerlaw]

For the past 2 years I have a Kent Marine RO unit with the FLoat valve kit hooked directly into my sump. I'm lucky I placed my tank on a wall ajoining the bathroom. I have the RO hooked up under the bathroom sink and just punched a hole thru the wall with the blue tubing. I imagine that you could probably drill a single small hole thru the floor for the piping and hook it into the sump.

Best thing I have ever done. I was loosing about 3 gallons of water per day.

 

[Zoom]

here is some pictures from my ATO.

I have a dedicated Just for the ATO 24 GPD RO/DI unit with ASO that i install . I use a slow RO unit just for POM.

The ro unit is in the bathroom about 30 ft away from the tank i drill a small hole on the floor ( don't tell the wife now :lol: )
and run the ro tubing under the house to the ATO system.

Here is the unit i have it screwed on the inside of the stand as you see i run clean pure water directly to the unit and from there to the sump.

And this is the controller that turn the solenoid on and off.

 

[mrvinman]

zoom,

What is that white plastic device all the yellow tubes are going into from your Maxxima?
Did that come with the Oceanus System?

 

[Zoom]

<a href=showthread.php?s=&postid=8526106#post8526106 target=_blank>Originally posted</a> by mrvinman
zoom,

What is that white plastic device all the yellow tubes are going into from your Maxxima?
Did that come with the Oceanus System?

That is the pressure sensitive ASO valve it turns the RO/DI off.
I got it here for $8 http://www.thefilterguys.biz/ro_di_add-ons.htm ......also you need a one way 1/8" NPT MALE X ¼" QUICK FITTING ELBOW CHECK VALVE FOR MEMBRANE HOUSING at the outflow of the membrane housing. Here ....http://www.thefilterguys.biz/fittings.htm

 

[mrvinman]

Thanks for the info Steve.

 

[mrvinman]

Update:

I want to thank all those who posted this thread. Alot of helpful comments.

I got the Oceanus Atlas and I couldn't be happier. Very well constructed unit and works great. I also got the auto shutoff valve with check valve for my RODI unit. Setup the RODI unit in my basement and ran the line up to my sump one floor up. Very neat and efficient.
Thanks again everybody!

 

[africangrey]

I will get mine this coming Tuesday, can't wait.

 

[mrvinman]

I noticed from an earlier post you have variable water level in your sump. I got mine with the optional timer for the variable sump water level. It works beautifully.

 

[africangrey]

Steve explained to me about the timer option but I am still having trouble following the logic, may be you could explain it better from a user stand point. He also mentioned that the timer will also address the problem with the TDS creep if wire the tubing correctionly. mrvermin, would you be able to take a TDS measurement on the RO/DI when the solenoid activates, thanks.
And of course, I am sure a lot of people will apprecieate some pics of your set up me especially.

 

[mrvinman]

The timer can be set from 1 to 15 minutes and prevents false water refill starts. So when you have fluctuating water levels in your sump, you can set the timer, say to 5 minutes. So if the water level is consistantly low for 5 minutes, then the solenoid will activate and allow the sump to refill to the level you set with the float assembly.

 

[Felixc]

Re: ato

Re: ato

<a href=showthread.php?s=&postid=8522943#post8522943 target=_blank>Originally posted</a> by oceanus_systems
We have also tested tds creep and conductivity and is very low.zoom is correct about water quality from air born bactria (dust) is higher ....

Yet another obstacle. I thought I had it figured out and was going to do the 25g storage tank idea until I read this. I though making large amount of ro/di at a time was the key in cutting back on the amount of impurities, had no idea exposing it to air would defeat this purpose. Would covering the rubbermaid container with a lid be good enough? I go through about 5g a day.

 

[jdieck]

Re: Re: ato

Re: Re: ato

<a href=showthread.php?s=&postid=8649371#post8649371 target=_blank>Originally posted</a> by Felixc
Yet another obstacle. I thought I had it figured out and was going to do the 25g storage tank idea until I read this. I though making large amount of ro/di at a time was the key in cutting back on the amount of impurities, had no idea exposing it to air would defeat this purpose. Would covering the rubbermaid container with a lid be good enough? I go through about 5g a day.

Keep it covered is good enough. Remember that the impurities you look to remove besides chlorine and chloramines is phosphates, Nitrates and Silicates plus Dissolved Hydrocarbons, Dust is not an issue, basically some salts may even add some clay to the salt mix as as dehiydrator and stabilizer and bacteria is not an issue as far as you do not store more than a week and the reservoir is in the dark or it is one of those gray brute cans.
I will be surprized (very) if you get any phosphates, or Nitrates airborne