[Clear Vision]

I just bought a brand new 6 stage reverse osmosis system.

I followed the Instructions step by step.

I first conected the water to the Inlet and flushed out the pre filters. That was ok!

When I conected the hose from the pre filters to the membrane to take It through It's final 3 stages the water wouldn't come out??? Sorted It now My fault

Now It's all working correctly there seems to be a lot of wast water compared to good water Even when the flush valve Is turned off water still comes out of the waste??? Is this normal.

I have ran the system for 2 hours now and the tds reading Is 010ppm? Is this about right?

My tap water reads 028ppm. When I take a reading from the waste pipe It reads 048ppm? and the good water reads 10?

Am I doing anything wrong?

Matthew
Clear Vision

[Clear Vision]

.

[jeff evans]

I Even when the flush valve Is turned off water still comes out of the waste??? Is this normal.

Hi clear vision

Ihave a 4 stage R O , yes it is normal to have waste water with the flush valve turned off,i get more waste than product water,but i only have 1 membrain you have 3,so i dont know how much waste you should have.

It also depends on your water pressure the more you have the less waste you will have.

Your final tds reading may be high because the new membrains need flushing through, because when they are new they are covered in somthing to protect them. Also do you have a d i unit for the final polish of your water.

Hope this helps.

[jeff evans]

Clear vision

If your tap water ppm is only o28 i would of thought that you would have been better of just using D.I.

I could be wrong, sure someone will tell you.

[Alex Gardiner]

Hi Clear vision,

First of all you need to get rid of the sixth stage on your RO unit, this is a carbon filter and may actually increase your final TDS.

The unit you have is designed for drinking water systems which is why it has 6 stages.

Then try your TDS again. What is your tap psi pressure

Alex

[DaveBrown]

You are lucky. I wouldnt bother with RO with tap water like that, just DI. I've spent £500 for a RO which only produces 20ppm! Postcode lottery??!!

Dave

[Clear Vision]

I Also do you have a d i unit for the final polish of your water.

Hope this helps.

Jeff,

I have a di unit in the back of my van to polish off.

I know my water Is only 028ppm from the tap and yes I could only us di to purify my water.
You would be suprised how quickly my resin runs out when I only use my di vessel to purify!

My theory behind bying this unit was If I got my water down as low as I can, I store It In my 1000L tank and transfer to the van. Thats where my di vessel Is. If the water Is only going through my di vessel at002ppm-010ppm this wouldn't be so hard on the resin and will last longer.

P.S. I have just let 25L run through the unit and my TDS reading Is now 001ppm. There Is still LOADS MORE water going out the waste? I mean a lot. Is this normal?

Thanks for all you replies.

Matthew
Clear Vision

[Clear Vision]

Hi Clear vision,

First of all you need to get rid of the sixth stage on your RO unit, this is a carbon filter and may actually increase your final TDS.

The unit you have is designed for drinking water systems which is why it has 6 stages.

Alex

Alex,

Thanks for your advice.

You say It's designed for drinking water. Will It be ok for what I need It for? (wfp)

Can I fit a inline pressure gauge onto my unit? If so do you sell them? What price?

Matthew
Clear Vision

[Extremeclean]

Alex seems to be offline so I will answer.

It will be fine for making water for WFP.

Yes you will be able to add an inline pressure gauge.

Take that last vessel off like Alex says. It serves no purpose for purifying water and could well add a little to your outgoing TDS. They out them on drinking water systems supposedly to improve taste that's all.

Yes it's normal to get loads of waste out of a unit like this. If you are on a meter I doubt very much that any gains you make in resin savings will be of much use because of added water costs.

[Clear Vision]

Thanks extremeclean 

Im'not on a meter.

Will take off that 6th filter tomorrow.

Cheers

Matthew
Clear Vision

[JM123]

the 6th stage is usually an inline carbon filter which improves taste and removes any VOC's left in the water.

[jeff evans]

I Also do you have a d i unit for the final polish of your water.

Hope this helps.

Jeff,

I have a di unit in the back of my van to polish off.

I know my water Is only 028ppm from the tap and yes I could only us di to purify my water.
You would be suprised how quickly my resin runs out when I only use my di vessel to purify!

My theory behind bying this unit was If I got my water down as low as I can, I store It In my 1000L tank and transfer to the van. Thats where my di vessel Is. If the water Is only going through my di vessel at002ppm-010ppm this wouldn't be so hard on the resin and will last longer.

P.S. I have just let 25L run through the unit and my TDS reading Is now 001ppm. There Is still LOADS MORE water going out the waste? I mean a lot. Is this normal?

Thanks for all you replies.

Matthew
Clear Vision

[freshwater]

Jeff,

Your waste can be anything up to 5 times your pure water, it all dependes on the type of membrane, your water pressure and the drain restrictor in your RO. Measure it with a jug or a bucket and if is over 5 times the pure then go back to your supplier.

steve@freshwatersystems.co.uk

[Alex Gardiner]

Hi Clear vision,

Yes you can add a pressure gauge to this very quick and simple. Give us a ring on 01726 61143 on Monday morning and Kirsty or Anna will sort it for you.

Alex

[Clear Vision]

Thanks for all your help on this  guys.

This morning I took off the 6th stage carbon filter like you said and set the system up properly above my 1000L ibc tank.

Can anyone help me with my tds readings?

1. My tap water Is 028ppm

2. waste water from ro reads 048ppm? Why Is this higher than my tap water?

3. Took a reading of the water coming out of the membrane and Its 002ppm. Does this sound right?

4. After the 5th stage di the reading Is 000ppm!


Next question!

Waste water vs Pure water

Filled up a  cup with pure water and It took 2mins to fill up.

Filled up with waste water and It took 27 seconds.

Is this about right?

Cheers

Matthew
Clear Vision

[mick40]

boys n there toys cv eh

[Clear Vision]

Thats a good pic of you mick

[mick40]

i know where i can get my water now 

[Alex Gardiner]

Hi Clear vision,

The TDS readings sound spot on, Your resin chamber should last a good while.

The reason for your high waste ratio is probably down to low water pressure, however it will always be about 2:1 at best on the unit you have.

Alex

[Clear Vision]

Thanks alex,

Where di I fit the gauge to on my unit?

Matthew