[brett walker]

Hi all

I have a 100gpd ro unit and i am thinking of getting an upgrade to produce more water, is this a good idea? or would i be better just going for a merlin?

Any thoughts

thanks in advance

Brett

[P @ F]

Brett , what is your tds from tap and how much does your ro produce per hour ?

 Rich   P @ F

[brett walker]

Hi Rich

its about 130 but dont know how much per hour though i just leave it running, keep filling containers up ant the end of each day

Brett

[P @ F]

Aint you even got a rough idea ?
100 gpd says to me about 400 L , or is that wrong ?

 Rich  P @ F 

[brett walker]

not sure mate

now i only use ladders for access i dont want to run out of water, im sure someone will come up with an answer

cheers

Brett

[craig jwc]

Think it's about 455litres (UK)

4.54609 litres = 1 gallon(UK)

3.785 litres = 1 gallon(US)

Which would make it 378.5litres(US)

Not sure if RO gpd is in UK or US


Craig

[Alex Gardiner]

100gpd is a nominal production figure.

Realistically depending temp. and pressure we get between 300-400 litres per day.

A simple upgrade is to buy a second membrane to add on, this would up production to about 600 litres per day, it would also reduce waste ratio


Alex

[Alex Gardiner]

Hi Sesutton,

This is a very straightforward upgrade, fits in about 5 minutes, it will double your output and reduce your waste ratio by up to 50%.

We will be happy to supply this to you when we re-open after our vacation on 1st May.

Alex

[Londoner]

Although you say its a 100GPD system my bet is its not putting out anything like 100 gallons in 24hours. They never do. They also all produce a lot more waste than they are supposed to.

This is because the inlet pressure is too low.

The cheapest upgrade is just to fit a booster pump to zap up the inlet pressure which greatly increases the amount of  good water you get out the other end. And it cuts down the % waste as well.
A pump is about £78 from Ro-man and a pressure gauge about a tenner.

But first you have to do some measurements to work out how much you are producing now and then talk to Ro-man to see if a pump will make enough difference to justify the money.

[brett walker]

Thanks guys for the replies

suprised no-one has mentioned the merlin

I think i'll just get an upgrade kit

cheers

Brett

[gaza]

MERLIN MERLIN MERLIN MERLIN BRETT YOUR SUPPOSE TO TAKE YOUR NEW GLASSES OF TO GO TO BED,NOT TEST UM OUT LOOKING AT THE BEDROOM LIGHT BULB ALL NIGHT  

 GAZA

[brett walker]

merlin  merlin



brett

[gaza]

BRETT: MERLIN: LIKE THE MAGICIAN, BET ONE TURNS UP IN YOUR ARSENAL BEFORE LONG.

 GAZA

[jsm]

I like you started with the 100 , then got the upgrade to 200 , worked fine but the water preseure was a bit low so got the pump , now works fine the pump makes a lot of differance - but adding the cost's up , It would be cheaper to get the merlin in the first place 

so if i was doing it again I'd get the merlin

[matt]

alexg

im on a water meter

i didnt know a 2nd menbrane would reduce my waste by half, this is very interesting and would pay for itself in a while

[jsm]

alexg

im on a water meter

i didnt know a 2nd menbrane would reduce my waste by half, this is very interesting and would pay for itself in a while

I get a 1-pure to 1 waste with a 200gallon with the pump at 100psi , if this helps Matt
without the pump its more like 1 pure to 2-3 waste  at tap 40psi pressure