Great more bad news

[Member No. 1]

Wouldn't you have to use the booster pump to pump water from the degasser barrel to the DI cartridges anyways? If so why not just put water straight from well in first container then degass the CO2 and the run it from that barrel thru the RODI into the 2nd Barrel with the filtered water?

No, you don't need high pressure for the DI. I use a MJ1200 power head. Plus I only let the water trickle thru, about the same rate as if came from the RO.

 

[fernalfer]

I am on well water with very high C02. I was lucky to get 50 gallons made before my DI was exhausted. I use a booster pump and run well water through the normal RO stage into a holding tank. I have a pump in the holding tank that churns the water thus degassing the C02 into the atmosphere. I let the RO water degas for a minimum of 24 hours then I pump the RO water through DI resin. Now I can make a couple hundred gallons on a single DI charge,

What kind of pump do you use to pump water from the holding tank through the DI unit?

 

[Nick_P]

what kind of pump do you use to pump water from the holding tank through the di unit?

mj1200

 

[fernalfer]

mj1200

OK last set of questions and I'll have a pretty good hold on how I'm going to do this:

1. Do you guys still use a booster pump between well water and the RO part of the filtering? Or just use regular pressure?

2. What is your process to degass in the first container?

3. Once degassed you use your mj1200 pump submersed in the first container to pump out of 1st container and into the DI part of the filtering correct?

If so what type of tubing do you use to connect pump to the DI unit? I think I read the mj1200 is 1/2" and the tubing to the DI unit is 1/4".

4. I have the BRS 4 stage 75 gph RODI unit and wondering specifically which stages get used and in what order. The first 3 stages to the degasser container and just the DI out to the 2nd container?

 

[Member No. 1]

OK last set of questions and I'll have a pretty good hold on how I'm going to do this:

1. Do you guys still use a booster pump between well water and the RO part of the filtering? Or just use regular pressure?
Yes, my house pressure range is 45-65 psi. The booster holds it steady at 80 psi
2. What is your process to degass in the first container?
As explained, I degas after the RO but before the DI. I use a simple cheap air pump/air stone.
3. Once degassed you use your mj1200 pump submersed in the first container to pump out of 1st container and into the DI part of the filtering correct?
Correct. You only need a slight trickle going thru the DI. About the same rate you would see if you still had the RODI hooked up under normal conditions.
If so what type of tubing do you use to connect pump to the DI unit? I think I read the mj1200 is 1/2" and the tubing to the DI unit is 1/4".
Took the MJ1200 to Lowes, mixed and matched fittings, but in the end, 1/4 poly line, the same that you would use on the RODi unit. It's the same as the line they sell for plumbing an icemaker on a fridge. Lowes sells it. Also since it's submerged, it doesn't have to be 100% leak free.
4. I have the BRS 4 stage 75 gph RODI unit and wondering specifically which stages get used and in what order. The first 3 stages to the degasser container and just the DI out to the 2nd container?
Yup, just follow the output line from the RO chamber (not the waste line), disconnect it from the DI, run that into the degas container. Run the air pump for a few days, (I always keep this full and aerated) then pump it thru the DI into the storage containers. I have 2, one with RODI water, one where I mix my salt.

 

[fernalfer]

Thanks for all of your help. Time to spend more money. But i guess this becomes a usual thing in this hobby.

 

[fernalfer]

ok so i was reading a little on bulk reef supply about the MJ1200 pump for pumping water from one container to another. Someone asked a question on there and here was the response:

Can this be used as an external pump if you plumb the input?

Great question!
This could be used externally however plumbing it would prove to be a challenge as it does not use barb or threaded fittings and would need 1/2" ID tubing to connect to it. Keep in mind this cannot pull water, only push, so when plumbing the water will need to naturally feed into the pump. Feel free to let us know if you have any further questions!

So from reading that it sounds like this pump can't just be placed in the container and suck water in to be moved through the DI portion of the filter and into the second container? Or am i just reading this wrong. maybe i'm just confusing the can only push water can't pull it.

 

[Member No. 1]

The MJ1200 is a submersible power head. It will work fine as I describe. I have the one in my RODI set up, I use one in my sump to circulate water thru my chiller, and one came stock on my Kalk Reactor as the stirring pump.
This is the one I'm talking about. Mine are all old, so there were made by Maxi-Jet.
https://premiumaquatics.com/products/cobalt-aquatics-power-head-mj1200-295-gph.html
The new ones are made by Cobalt.
But you can pretty much use any submersible pump you want.

 

[Member No. 1]

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