[AuRavelling79]

Just finished installing my new R/O.  It is a Pentair PRF-RO and is so easy-peasy that that even I can do it.

It's about 345TDS in and 004 out and the inlet pressure gauge now reads 65-70 psi on 1/2" tubing in and 3/8" tubing out. I get about 70 litres an hour of pure which is more than adequate.

The old RO-Man type (nominal 300gpd) started at about 009 out on 80 psi on 1/4" tubing and gave about 20 litres an hour of pure.

[Spruce]

Just finished installing my new R/O.  It is a Pentair PRF-RO and is so easy-peasy that that even I can do it.

It's about 345TDS in and 004 out and the inlet pressure gauge now reads 65-70 psi on 1/2" tubing in and 3/8" tubing out. I get about 70 litres an hour of pure which is more than adequate.

The old RO-Man type (nominal 300gpd) started at about 009 out on 80 psi on 1/4" tubing and gave about 20 litres an hour of pure.

By those results Gold, they have certainly done wonders when compared to the old Merlin.

[M & C Window Cleaning]

Was thinking to upgrade mine this year. That looks impressive. Mines a boosted 300gpd system at the moment. Water and electricity is costing me a small fortune at the moment. My mains pressure is only about 40psi but if I could match my current output without having to boost it that would be good.

[Shane sharples]

How much was that mr gold?

[DaveG]

What pump are you using Malc?

[AuRavelling79]

How much was that mr gold?

£322 + VAT from Gardiners. (There is a video of it with Alex setting it up with the help of his cat!)

Plus John Guest connectors and tubing and I also got a 7 litre resin chamber, but most of you will have one of those already. (I polish my water before storing, not on the van)

[AuRavelling79]

What pump are you using Malc?

I'm not - mains pressure only. On my old system the inlet gauge showed 75/80psi through quarter inch tubing. This gauge shows 65 - 70 psi through three-eighths tubing.

[AuRavelling79]

@Spruce

Yes, I was pleasantly surprised but I'm well aware how TDS can rise and how membranes deteriorate. It will be helpful if I post the outlet TDS and flowrate in a couple of weeks and again in a couple of months.

[DaveG]

What pump are you using Malc?

I'm not - mains pressure only. On my old system the inlet gauge showed 75/80psi through quarter inch tubing. This gauge shows 65 - 70 psi through three-eighths tubing.

Lovely, ta.

[8weekly]

Just finished installing my new R/O.  It is a Pentair PRF-RO and is so easy-peasy that that even I can do it.

It's about 345TDS in and 004 out and the inlet pressure gauge now reads 65-70 psi on 1/2" tubing in and 3/8" tubing out. I get about 70 litres an hour of pure which is more than adequate.

The old RO-Man type (nominal 300gpd) started at about 009 out on 80 psi on 1/4" tubing and gave about 20 litres an hour of pure.

By those results Gold, they have certainly done wonders when compared to the old Merlin.

Yes, that's amazing. With a Clarkes pump and 280 in I only get 14 out with new membranes. That's astonishing for a Merlin.

[dd]

That is impressive performance although my 300 gpd Ro man unit performs well. Currently around 200 plus in and 002 out. The membranes are around 14 months old. I do flush it for a few minutes daily, use a 20 inch pre filter and a water softener.

[AuRavelling79]

Just finished installing my new R/O.  It is a Pentair PRF-RO and is so easy-peasy that that even I can do it.

It's about 345TDS in and 004 out and the inlet pressure gauge now reads 65-70 psi on 1/2" tubing in and 3/8" tubing out. I get about 70 litres an hour of pure which is more than adequate.

The old RO-Man type (nominal 300gpd) started at about 009 out on 80 psi on 1/4" tubing and gave about 20 litres an hour of pure.

An update as of Friday 13th May.

300 in and  008 out of the R/O and 60 litres per hour. So as suspected, not as good as it was between three and four weeks ago. I will be changing the filter 1st week in June so we shall see what difference that makes.

[Don Kee]

Out of interest, what made you pick the merlin over the 4040 Gold?

[AuRavelling79]

Out of interest, what made you pick the merlin over the 4040 Gold?

I think it was simplicity and price. I'm only feeding two of us and not on a water meter ... yet.

[Don Kee]

Fair enough

In fairness the TDS of pure your getting is pretty good for what I remember Merlins to be like (although I think they've improved)


Better than the 300gpd , bet you wish you'd done it before!

[8weekly]

Just to say on this, I bought new membranes for my Merlin a little over a year ago and my TDS has now risen to 42 from 14 and resin is going off quickly. We use around 1,000 litres a day. It's time to put my hand in my pockets for a 4040 I think.

[Spruce]

Hi Granville,
Out of interest, have you any further updates on your PFR performances please.

[W.booler]

Out of interest, what made you pick the merlin over the 4040 Gold?

I think it was simplicity and price. I'm only feeding two of us and not on a water meter ... yet.

.              Hi Granville. I don't think water companies can make you have a water meter installed, if you don't already have one

[chris turner]

Just to say on this, I bought new membranes for my Merlin a little over a year ago and my TDS has now risen to 42 from 14 and resin is going off quickly. We use around 1,000 litres a day. It's time to put my hand in my pockets for a 4040 I think.

You've been saying that for ages

I would of thought a decent setup would be more important then forking out on a new ford ranger...

[8weekly]

 

Just to say on this, I bought new membranes for my Merlin a little over a year ago and my TDS has now risen to 42 from 14 and resin is going off quickly. We use around 1,000 litres a day. It's time to put my hand in my pockets for a 4040 I think.

You've been saying that for ages

I would of thought a decent setup would be more important then forking out on a new ford ranger...

That post is a few months old now. When we moved into our unit I upgraded to a 4040 at the same time. So there!