auto top off with RO water + municipal source

[darkhollo]

I want to plumb my RO unit to my auto top off valve (standard toilet float valve) to my municipal water to top off the res with RO water.

I know i know.. you will all say that i need a second res, use gravity etc. I just don't have the space. I use lucas and use the target formula to modify my EC as RO water is added back.

Is anyone doing this? Is the pressure from the house water just too much for the RO unit?

I could run my house plumbing into the top off value, out of that into my RO unit. I tried straight into the unit.. out of the RO unit into the float valve but too much pressure builds and the RO unit isn't happy.

TIA
--dh

 

[Bozo]

run the line that comes outa the pressure tank to a float valve
Mine has a hose and a valve coming outa top of pressurs tank female pipe threads on end easy as pie to plumb to float valve
Is yer question will R/O unit take 100/150 psi city water answer is absolutely higher yer water pressure the better the ro membrain works .Some folks with low water pressure below 90 psi i belive need to use a booster pump .You shouldnt have trouble main water source hoked right to ro then float valve .Kind i use is made to be under high pressure 24/7 only time its not pressured up is when it is didcharging and as I said I belive it take 90 psi to push the water through the ro membrain so that side will always be atleast 90psi .Does it leak? It shouldnt leak pressured up anywhere if it does you didnt tighten some thing,a line isnt pushed all the way in its cracked,
Thats all i know GL

 

[darkhollo]

Well the issue is that the way I hooked it up first.. (black line/discharge, red line/incoming, and blue line/ro water) was to put the float valve on the discharge of the blue line.. but when that line is plugged the unit appears to continue to discharge out the black line. I am going to reconfigure to shut off the water going to the red line.. basically stop give the unit water.

I was just a bit confused and hadn't thought of all the issues. Just wondered if others are doing this and if so.. how did they set theirs up.

Where there is a will, there is a way!

--dh

 

[maryj315]

Well you got me confused how is the ro supposed to work if does not discharge the wast water at all times

At least that is how mine works

Or i just do not understand what you are referring to and i even read it twice

Mj

 

[Bozo]

I agree theres always a way but r/o units at least mine only discharges wast water when it its making r/o water.Mine has a 3 gal tank it fills then stops the line coming outa tank has a valve on it and theres a tap on sink also both are jut like a float valve they shut water off same place as yer float valve .If your unit truely makes bypass water with float on blue line and float valve closed ,I would say its broken hell I am just guessin what is your water pressure like I dont know how they act on low water pressure but I know they do not work well below 90 could be 80
GL I can tell yer gonna get er done just seems like pain in ass to put float on red line in the rez .Do able but youd have to loop the circuit through float at and then to the r/o unit and finaly back to tank what a mess I would not go that way cause I hate clutter in room

PS are you giving the unit enough time to pressure up and stop making water this may take a few mins

 

[Barn Growin']

Yeah you need to stop doing that your going to ruin your RO machine. You need a kit that will detect the pressure build up and shut off all the lines individually. Here is a kit on ebay for you to check out http://cgi.ebay.com/Auto-Shutoff-Ki...RS_W0QQitemZ250333753051QQcmdZViewItemQQptZLH . I'm sure you could find one cheaper but I wanted to show you an example! Good Luck!!

 

[darkhollo]

Barn - Thanks for the link.. that is very informative. I don't see how I'd ruin my unit by short tests. I saw it was flawed and stopped. And the video states that the float valve won't hold up to house water pressure. I guess I'll order one up.

--dh

 

[Barn Growin']

Dark I am sure there is a kit for your brand but most of them are pretty universal. It can mess up your filters is what I meant to say but those pretty much ARE the RO machine haha. The float valve shouldn't be a problem with the RO machine that's why you have the other parts to stop it at a few points plus the pressure coming out of the RO machine is no where near house pressure by that time. I assume they mean hooking it up directly to the sink or something like that which then yes you would need a better float valve. Hope this helped!

 

[darkhollo]

Well that ebay seller is the same guy I bought my unit from a while back. I'll just go ahead and order one up.

Thanks for the tip.. didn't even know they had something like that out there. It was THE answer to the problem and def. the right way to go.

--dh