Did I break my ro/di?

[JoshH]

Deleted

 

[cromag27 Verified Sponsor]

I’m unsure really what my water is. I seemed to get a 2 1/4 to 1 ratio of waste water to regular, but this was with the flow thing vertical. When it is horizontal the water flies out of the waste line so fast it has pressure to it. I didn’t try to measure it during that time however. I just assume when it’s vertical is the right way

closed is how you want to test.

 

[Buckeye Hydro Verified Sponsor]

I’m unsure really what my water is. I seemed to get a 2 1/4 to 1 ratio of waste water to regular, but this was with the flow thing vertical. When it is horizontal the water flies out of the waste line so fast it has pressure to it. I didn’t try to measure it during that time however. I just assume when it’s vertical is the right way

 

[Buckeye Hydro Verified Sponsor]

I’m unsure really what my water is. I seemed to get a 2 1/4 to 1 ratio of waste water to regular, but this was with the flow thing vertical. When it is horizontal the water flies out of the waste line so fast it has pressure to it. I didn’t try to measure it during that time however. I just assume when it’s vertical is the right way

When water "flies out of the waste line so fast" and your pressure gauge drops to about 10 psi, you are flushing the membrane. Move the lever to the other position for normal operation.

Russ

 

[Be102]

When water "flies out of the waste line so fast" and your pressure gauge drops to about 10 psi, you are flushing the membrane. Move the lever to the other position for normal operation.

Russ

I have managed to learn how to use it correctly... now to just figure out if 2 1/4 waste to production water is either too much or if it will be detrimental to my ro/di over time. Is the only thing that changes the gpd on the Rodi is the flow restrictor I removed? So I could purchase the new one you linked and replace whats on my line and expect my problems to be fixed?

Also would that cause any sort of problems going down the line as I would like to order and add a shut off valve kit?

 

[cromag27 Verified Sponsor]

I have managed to learn how to use it correctly... now to just figure out if 2 1/4 waste to production water is either too much or if it will be detrimental to my ro/di over time. Is the only thing that changes the gpd on the Rodi is the flow restrictor I removed? So I could purchase the new one you linked and replace whats on my line and expect my problems to be fixed?

Also would that cause any sort of problems going down the line as I would like to order and add a shut off valve kit?

no. flow restrictor controls waste ratio. other factors effect gpd.

remember i said you want 3:1 a 4:1 waste ratio. you have 2:1. this will burn through your membrane faster. there are low waste rodi units but they have specific features that yours doesn’t.

since your waste ratio is off, now you have to get a new flow restrictor. remember when i said there are more problems with these types of flush valve? yeah.

i would go buy a standard cut to size flow restrictor and skip the flush valve altogether.

 

[Be102]

no. flow restrictor controls waste ratio. other factors effect gpd.

remember i said you want 3:1 a 4:1 waste ratio. you have 2:1. this will burn through your membrane faster. there are low waste rodi units but they have specific features that yours doesn’t.

since your waste ratio is off, now you have to get a new flow restrictor. remember when i said there are more problems with these types of flush valve? yeah.

i would go buy a standard cut to size flow restrictor and skip the flush valve altogether.

Is that something that can be purchased locally? Did u say u told me so or

 

[cromag27 Verified Sponsor]

Is that something that can be purchased locally? Did u say u told me so or

you’ll need the one that matches your gpd closest.

https://spectrapure.com/FILTERS-MEMBRANES-RESIN/RO-MEMBRANES-FLOW-RESTRICTORS

 

[Buckeye Hydro Verified Sponsor]

I have managed to learn how to use it correctly... now to just figure out if 2 1/4 waste to production water is either too much or if it will be detrimental to my ro/di over time. Is the only thing that changes the gpd on the Rodi is the flow restrictor I removed? So I could purchase the new one you linked and replace whats on my line and expect my problems to be fixed?

Also would that cause any sort of problems going down the line as I would like to order and add a shut off valve kit?

Is your water soft? or softened? If not, you'll want a different flow restrictor. The gpd of an RO system is based on the RO membrane, and is affected by the water temperature and water pressure.

Maybe you want to give us a call so we can troubleshoot with you and put this all to bed?

Russ
513-312-2343

 

[lordraptor1]

yes i know this is an old post but this information is relevant. if you are wanting a flow restrictor for 150 GPD i dont recommend buying one from BRS. according to this calculator: RO flow restrictor calculation - Plumbing & Water Purification Systems - San Diego (h2opurificationsystems.com) a 150 GPD membrane needs a 1200mlm flow restrictor ( brs is selling an 800 MLM flow restrictor for both 75-100 and 100-150 gpd membranes which puts the ratio for 150 GPD at 2ISH pdr. just thought i would point that out in case no one else noticed.