RO DI install question/confirmation.

Justin_92_92 · Jan 11, 2014

Hey guys. Im about to install my rodi system with booster pump. I want to post my layout and make sure it have it right before I make a mistake.

Water line in -> Pre-filter -> pre-filter -> Sediment filter (came with pump I think (grey little canister)) -> Booster pump -> Membraine -> DI filter -> Output Storage Tank.

I have an inline TDS meter as well. I believe one side goes before Di and one after (not sure on that one)

Am I close?

redfishbluefish · Jan 11, 2014

I’m confused!!!!

Water should first go to the booster pump (if you have or need a pump). The pump goes into the RO unit, with the first filter being a sediment filter…..then typically a carbon block (and maybe a second carbon block) and then the RO membrane. Once it exits the RO membrane, it then goes into the DI canister.

stunreefer · Jan 11, 2014

I have always installed booster pumps just before RO membrane, after sediment and carbon filters. Seems to me you're missing any carbon filter(s) but your booster pump is where I would have it. You don't want any sediment reaching booster pump IME.

Justin_92_92 · Jan 11, 2014

That's what I thought. Then this confused me.

Justin_92_92 · Jan 11, 2014

Sorry, By pre filter I meant my micron filter and carbon block. ( I just realized the grey one is my 1 micron sediment filter

)

I have this with a booster pump (well water)

http://www.buckeyehydro.com/premium-rodi/

stunreefer · Jan 11, 2014

Both diagrams show prefilter --> prefilter --> strainer --> booster pump --> RO membrane --> DI. Note that one prefilter could be carbon. Past that both show same order you had initially posted.

stunreefer · Jan 11, 2014

That's a great unit. You have it right, go make some water!

Justin_92_92 · Jan 11, 2014

Great to hear!

Going by the diagram, My pressure switch that came with this goes to the beginning.

For some reason I would have thought the sediment filter would have went before the whole system. I am assuming the sediment filter is the grey filter that has a screen inside of it. Its marked "DM Filter".

Thanks for the quick help! Wife will be home soon and wanted to have it installed before she got back

Justin_92_92 · Jan 11, 2014

I will try to upload a pic, But the small piece that connects the first two filters (carbon block and micron) is leaking pretty good. Im hoping this is something I can pull apart and fix. Figured I would post it up here incase anyone has any suggestions before I start looking for a fix. Its not a small hose like the rest of the system. Looks like a plastic pipe maybe.

Justin_92_92 · Jan 11, 2014

Not sure why it went sideways.

Justin_92_92 · Jan 11, 2014

*UPDATE*

The plastic male-male coupler that hookes the two together is cracked

Not going to be able to hook this up tonight I guess

Home Depot in the morning...

redfishbluefish · Jan 11, 2014

My HD only has this 1/4" nipple in brass. When I broke mine, I had to order a plastic replacement from BRS.

Justin_92_92 · Jan 11, 2014

Does it go by ID or OD? OD was 1/2" that's why I ask.

I'm sure your right that local won't have the part I need

but I'm def hoping

55g · Jan 12, 2014

If it's faulty, maybe you should return It where you purchased it from....

Justin_92_92 · Jan 12, 2014

It's one of those things where it may have broke in shipping or I may have broke it unintentionally. While it is a little
Frustrating because I wanted to install tonight, it won't be a huge trouble for
Me to get the new part (less the $5) and put it on. Still will be fastest route.

I'm sure buckeye hydro would ship me out the piece I
Need pretty quick if I give them a call. But I'm
Going to look local first (for
Speed)

But until then, I'm leaving the laundry room a mess

Justin_92_92 · Jan 12, 2014

Question for you all,

So Lowes or HD didnt have the 1/4" threaded nipple I needed. Would brass be ok for a few days while the new one ships? I also bought 1/4" quick connects so I could spin the canisters and add a small tube between the canisters as another option. (this would keep it all plastic.)

stunreefer · Jan 12, 2014

I would keep it all plastic until the new part comes.

Justin_92_92 · Jan 12, 2014

Cool, I will turn the canisters 90 deg to allow room to add the 1/4" elbow quick connects then. I bought both just incase.

I just wrote to Buckeye because it doesnt allow me to add the part to my cart on their page. Might be a mistake or a sign of them being out of stock.

Justin_92_92 · Jan 13, 2014

Got it all installed. Ran it in a few steps (just the filters, then added membrane then di) after the "break in" I started making some water. 135 TDS in and 0 out! very happy!

dangros · Feb 20, 2015

I have seen diagrams with the booster pump placed before any filters but having one tiny prefilter to remove any large particles which may clog up the booster pump screen. Is there any benefit/drawback to this configuration or does it depend on your sediment and carbon filters? I just reordered filters from Air, Water & Ice and noticed that my sediment filter was 10 microns. Would this impact where the booster pump should be? Also, is a 10 microcon filter less worthy? I have concerns that it will prematurely waste my carbon filters. This is the filter pack that I was sent when calling in due to concerns about chloramines:
AirWaterIce - H2O Guru