Please Rate my RODI set up

[bozo]

I'm going to set this up once my filters come in this weekend.

Pressure is forsure above 65. Need to check again

TDS from the wall: 550 ppm

Will contact water district about chloramines.

I was gifted 50, 1 micron sed filters so I'm using those until they're gone. Will use 0.2 after

Stage 1: 1 micron sed
Stage 2: 1 micron sed
Stage 3: 1 micron sed
Stage 4: 1 micron sed
Stage 5: 0.5 micron carbon
Stage 6: 0.5 micron carbon
Stage 7: 75 gpd filmtec (550 ml flow restrictor. I also have a flow restrictor that was cut for a 150 gpd membrane, which I may use instead)

Stage 8: may add carbon for taste

All of this dumps RO tank/Faucet/Ice Maker
_________________________________________________
1/4th inch valve for when I make RODI.

Stage 9: DI

Thanks

 

[K7BMG]

I rate it a 5.
Two sediments are more than enough.
I would add more carbon.
I think the 550 is to big for the 75 per day RO should be the 440.

Sediment filters should be setup larger to smaller.

But this is all opinion.
Do you have 0 TDS RO/DI water on the output?
If yes then your good, if not, well no good.

 

[bozo]

I rate it a 5.
Two sediments are more than enough.
I would add more carbon.
I think the 550 is to big for the 75 per day RO should be the 440.

Sediment filters should be setup larger to smaller.

But this is all opinion.
Do you have 0 TDS RO/DI water on the output?
If yes then your good, if not, well no good.

Maybe just 3 sed and 3 carbon ? I can use the 150 gpd membrane instead, but I only have a 25 gallon tank lol. I’m going to shut down the 225 soon.

Also only 2 people use that rodi unit, so should I even use the 150 membrane ?


Thanks !

 

[KHunter0622]

Use both the 75 and 150. Feed the waste of the 75 into the 150. Do 2 DI’s. You’ll see the first di depleting and then it will travel through a whole one. Once the first DI is depleted switch the 2nd to the 1st spot and add the new DI. This way when you are 90% depleted water still gets plenty of contact time with resin.

 

[bozo]

Use both the 75 and 150. Feed the waste of the 75 into the 150. Do 2 DI’s. You’ll see the first di depleting and then it will travel through a whole one. Once the first DI is depleted switch the 2nd to the 1st spot and add the new DI. This way when you are 90% depleted water still gets plenty of contact time with resin.

If I am dumping the waste water from the 75 into the 150, I just need 1 flow restrictor (550ml)?

Also do I just join the clean water lines from both the 75 and 150 together, and route it towards the Reservoir/DI/Faucet/Ice Maker junction ?

Lastly, with the set up I just mentioned, what would be the estimated rejection ratio?

Thanks a lot !

 

[K7BMG]

Am I a ridiculously over the top guy.
Example:
I am on a well and have no chlorines. My source water TDS has never been over 180.

I learned reefing requires high quality water.
I started out with a BRS 6 stage RO/DI unit.

Have always had 0 TDS output with that but....

I up graded that system to a 7 stage and still 180 in 0 TDS out.

Then before the RO/DI, I added a 10 inch big blue sediment filter and a pressure booster.
System runs at 85 pounds.

That was not good enough so I upgraded again and went with two 10 inch DI Canisters per resin.
Still 180 in 0 out.

But again, still not good enough so I ordered 9 20 inch canisters and am in the assembly process of having three 20 inch canisters for each DI resin stage. 60 inches of resin, capacity per...

I ordered a second 20 inch big blue sediment filter to install before the 10 inch

The 6 10 inch canisters I had for the resins will now be carbon canisters.
Oh yea and I have two three port TDS meters for redundancy.

So my RO/DI system when completed will be as follows.

Position #
#1 20 inch big blue with a sediment filter one inch plumbing.
#2 10 inch big blue with a sediment filter one inch plumbing.
#3 Pressure booster. 3/8ts plumbing.
#4 Three 10 inch canisters with the BRS sediment filters.
#5 Six 10 inch carbon canisters.
#6 200 gallon per day RO unit.
#7 3 20 inch canisters for the Cation stage.
#8 3 20 inch canisters for the Anion stage.
#9 3 20 inch canisters for the mixed bed stage.

At this point I many not have water in my water LoL..
I have to be crazy right?

 

[K7BMG]

• 550 mL/min for 75 GPD single membranes or 150 GPD Water Saver Systems
• 800mL/min for 100 &150 GPD single membranes or 200 GPD Water Saver System

 

[KHunter0622]

If I am dumping the waste water from the 75 into the 150, I just need 1 flow restrictor (550ml)? Yes

Also do I just join the clean water lines from both the 75 and 150 together, and route it towards the Reservoir/DI/Faucet/Ice Maker junction ? Yes a T or a Y doesn’t matter which. Then run it into the resin. Depending on your setup and the Ice Maker if that’s going through resin you’d want to put a one way flow valve after the resin for the auto shut off.

Lastly, with the set up I just mentioned, what would be the estimated rejection ratio? Closer to 1:1.5