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  #11  
Old November 9th, 2014, 08:05 PM
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Quote:
Originally Posted by Haynes Forest Products View Post
I believe the pipe dope and Chlorine gas qualifie as FOOD GRADE
Point is that no leaks whatsoever were acceptable Chuck, 10 ppm of cl2 gas and you might as well say good night!
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  #12  
Old November 10th, 2014, 08:42 AM
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Dennis,
Hope you have solved your leak issues. I know you have put a lot of work and time into this R.O. unit. You will be ready for this springs sap runs now. And should improve your operation considerably.
Regards,
Chris
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  #13  
Old November 10th, 2014, 06:30 PM
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Default Test Run #2

Well the second test was ran again, fixed the previous leaks and found a few more!
And one of those was really BIG!! Check out the pic.

I had just found a few other leaks and just fixed them and fired it back up, all good so far. I cranked up the pressure to about 200 psi and looked for leaks, so far so good.
So I bumped the pressure up again to 225 psi, all is good in the world!
So I decided to needed to really check for leaks and also to set the over pressure switch so I bumped the pressure up once more. I had it at just under 250 psi.
The thing was just running like crazy, no weird noises or vibration, then all He11 breaks loose. I thought one of the PVC fittings that I had installed to fix a leak at given way. Nope, the bottom end cap on one of the vessels at blown off the vessel!! Spewing water everywhere.
The end cap was still sort of being held in by the clamp, the first thought was I broke the end off the membrane, oh crap. But 1st I need to deal with the 5 gals of water running everywhere.
Once the water was under control and I was able to look at the end cap I found that just the center part had split and broke when the end cap blew off the vessel.

So now I need a new end cap! But I need fix a lot of the leaks.
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Homebuilt RO Test Run-end-cap.jpg  
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  #14  
Old November 11th, 2014, 08:36 AM
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That SUCKS .........I would not call that a leak I call that a systems failure. Are you using hose clamps on the high pressure side of the unit?
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Old November 11th, 2014, 09:34 AM
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Called Joe at Atlantic RO and a new end cap and clamp is on the way. I did not notice until later that the SS clamp was twisted from the end cap blowing out.

Joe assured me that they can handle 250 psi without any problems. He thinks that I might not have had the clamp tight enough.

New end cap will set me back $25 though.

Once the new one shows up I'll give it another run.
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  #16  
Old November 25th, 2014, 04:46 PM
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Well I finally got back to testing the RO again. The delay wasn't due to replacing the end cap of the SS vessel that held me back, it was rethinking where I was going to place the RO when the season comes.
I did not completely think it thru where I was going to place it until the end cap blew off and water went every where. A little water would not have been a problem but a lot is a different story.
So I found a new location.
I had to put in a floor drain and pour a nice basin for the RO to sit in. I also made a nice wall mounted wash tank instead of the roll around style as before.
This also meant that I had to relocate the valve panel, and all the lines going to the tanks. I am much happier now with basically everything.

I did give the RO another test and yes I fixed the previous leaks but I found another one that I did not have before. It took awhile to figure out that the PVC fitting was actually cracked!! It was on the wash tank inlet so I would not have seen that leak as I never pulled water from the wash tank in the previous test.
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Homebuilt RO Test Run-pic-29.jpg  
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  #17  
Old November 25th, 2014, 07:26 PM
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Dennis, very nice looking RO.
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  #18  
Old December 2nd, 2014, 02:49 PM
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Was a little bored today on my last day off of work, yeah back to work!!

Anyway I thought I would try another test run of the RO, more for the fact that I can and it is so darn cool see and hearing it run!

I wanted to see how the flow rates change with pressure and then how they change with temp. Then figure out what my total gpm and concentration levels are.

I used straight water right out of the faucet. We have well water here and use no water softener.

I attached a PDF of the my quick results.

I am a little surprised with the total GPH. I know these numbers will drop a little with cold sap.
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File Type: pdf RO Test.pdf (4.2 KB, 85 views)
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  #19  
Old December 2nd, 2014, 06:36 PM
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Yeah, just remember that the membrane isn't doing any real work with just water. Those flow numbers will go down significantly when it is actually separating something.
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  #20  
Old December 2nd, 2014, 07:04 PM
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I knew that the results will be different with sap it was more a curiosity to see how temp plays a part in it. And my small and short test easily shows that temp plays a big part in how well it runs even with just water.
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