RO/DI help

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Tyreef2016

Tyreef2016

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I have a spectra pure 90gpd system I received from a friend. I recently hooked it up and am super confused.

I bought a Tds meter, changed the 3rd cartridge and am still getting water at 600+tds.

My water is from my well. i first ran it unfiltered. now its filtered before the RO/DI system.

I have a mem-0090 membrane. can i replace this with the mem-sp-0090 Membrane?

is my well water to dirty to begin with? do i need a better RO system?
 
Tidal Gardens
Deltec
What is your well or tap TDS, the RO only TDS from the membrane without the DI installed or disconnected, the final RO/DI TDS and just for kicks the waste line TDS?
What is the water pressure at the RO and what is your water temperature? Do you have a softener or are you using hard water? What is the exact measured waste ratio?
Spectrapure has owners manuals on all their systems on their website as well as hookup diagrams at the bottom of their main page. I also think you are not hooked up properly, if the membrane is good you should be seeing a 98% reduction in TDS with the RO only even without DI.
 
Ecoscape Reef Rock
.
AZDesertRat said:
What is your well or tap TDS, the RO only TDS from the membrane without the DI installed or disconnected, the final RO/DI TDS and just for kicks the waste line TDS?
What is the water pressure at the RO and what is your water temperature? Do you have a softener or are you using hard water? What is the exact measured waste ratio?
Spectrapure has owners manuals on all their systems on their website as well as hookup diagrams at the bottom of their main page. I also think you are not hooked up properly, if the membrane is good you should be seeing a 98% reduction in TDS with the RO only even without DI.
Click to expand...
You have to work with me a bit I am new to these. My well water is coming in at around 1,000 tds. On my HDe tester. The pressure ran normally around 40-50. I took out the membrane yesterday I put the the sp filter in now assuming it will work better and fits? I will pull up a diagram and double check and run the rest of my reults and keep you posted
 
AZDesertRat said:
What is your well or tap TDS, the RO only TDS from the membrane without the DI installed or disconnected, the final RO/DI TDS and just for kicks the waste line TDS?
What is the water pressure at the RO and what is your water temperature? Do you have a softener or are you using hard water? What is the exact measured waste ratio?
Spectrapure has owners manuals on all their systems on their website as well as hookup diagrams at the bottom of their main page. I also think you are not hooked up properly, if the membrane is good you should be seeing a 98% reduction in TDS with the RO only even without DI.
Click to expand...
All hoses connected properly. With new membrane and running at about 58psi. My ro water is coming out now at around 250psi right away.
 
My waste ration seemed right at about 5 to 1 last i checked I run waste down my washer plumping now.
 
Avast
Make sure you disinfect the system before installing the new RO membrane then make 3-5 gallons to waste before hooking the DI back up to rinse the membrane up.
Slow down, you are getting ahead of the advice.
Again, answer all the questions I asked previously. What is an HDe tester? Never heard of that?
 
AZDesertRat said:
Make sure you disinfect the system before installing the new RO membrane then make 3-5 gallons to waste before hooking the DI back up to rinse the membrane up.
Slow down, you are getting ahead of the advice.
Again, answer all the questions I asked previously. What is an HDe tester? Never heard of that?
Click to expand...
Thought I was answering them? Sorry but I had it disconnected and the only way to provide your answers was to run it... It's just the company. HDe.
 
Deltec
Disconnect the DI and make 3-5 gallons of RO sending it down the drain until you see the TDS of the RO water drop to the 98-99% rejection rate.

In order, what is you exact water pressure, temperature, tap TDS, RO only TDS, exact measured waste ratio now, not what it used to be when you checked before and your waste TDS. All of these have a direct bearing on your system.
Do you have any photos of the plumbing of the 1/4" lines?
 
AZDesertRat said:
Disconnect the DI and make 3-5 gallons of RO sending it down the drain until you see the TDS of the RO water drop to the 98-99% rejection rate.

In order, what is you exact water pressure, temperature, tap TDS, RO only TDS, exact measured waste ratio now, not what it used to be when you checked before and your waste TDS. All of these have a direct bearing on your system.
Do you have any photos of the plumbing of the 1/4" lines?
Click to expand...
60psi. But sometimes drops a little. On well so it's between 40-60 at times. Temperature varies but is around 76. Tap tds is 1000+. Ro only is coming out at 74. I will check the waste ratio and get back to you. I can take a picture but it enters first 2 containers then membrane. Out of membrane Yellow out is waste. Blue out goes to di cartridge.

I got in touch with spectrapure and they recommended trying to increase psi. Not sure how I'm going to achieve this. Are all units for finicky to get tuned in? I just assumed they were almost plug n play
 
RO is usually pretty easy to set up. I recommend flushing each filter individually before installing the next, making 3-5 gallons of RO to waste (or using your TDS meter to determine when the membrane is flushed out) and disinfecting the system at least annually. Take the time up front to do these simple things, adjust and occasionally monitor the waste ratio and it should reward you over its lifetime.
 
Top Shelf Aquatics
Spectrapure has their method in their FAQ section I think or search my username and disinfection and you will bring up hundreds of threads on the subject.
 
Yes - you'll need to add pressure to deal with that high feedwater TDS. As a rule of thumb add at least 1 psi for every 100 ppm of TDS.

You add pressure by installing a booster pump.

You mentioned your feedwaer is filtered before it gets to the RO. What sort of filter? Sediment filter? Water softener?

With your rough well water surely you have some sort of whole house treatment, no?

Russ
 
Nutramar Foods
Buckeye Hydro said:
Yes - you'll need to add pressure to deal with that high feedwater TDS. As a rule of thumb add at least 1 psi for every 100 ppm of TDS.

You add pressure by installing a booster pump.

You mentioned your feedwaer is filtered before it gets to the RO. What sort of filter? Sediment filter? Water softener?

With your rough well water surely you have some sort of whole house treatment, no?

Russ
Click to expand...
Yes I think it's just a sediment filter for the well. My water is very hard. After all the info I have managed to get it down to 74tds.

Have you heard of the ro/di buddy booster pump I have been eyeing this one.
 
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