[lee_dewing]

my ro-man 200 gpd system is dying.

tried everything, did seem to get it better but production panifully slow now.. (it is 8 years old )

gonna bite the bullet.

swaying between ro-man same-ish system £260 (incl vat)

Or keep thinking of the merlin

window clean wharehouse has this one but it is dearer than the merlin system on ro-man.

http://www.windowcleaningwarehouse.co.uk/shop/index.php?option=com_aceshop&route=product/product&path=93_26_34&product_id=447

Here's ro-man MERLIN,, whats the difference except guessing £80 £100+ price tag?

http://www.ro-man.com/shop/index.php?route=product/product&filter_name=merlin&product_id=130

wcw- say there one wastes 75% less water is that true?

My parents are not on water metre there garage is where my ro system is.


Another important question; can i link my existing di canister to Merlin; I think my di can is 10 inch holds half litre of resin i think???

thanks guys.

[lee_dewing]

Forgot to say RO-man give incl vat price; WCW don't (I HATE THAT )

[DaveG]

I tried a Merlin (pumped) and couldn't get the water below 38 tds, before resin  So went back to a 450gpd

[8weekly]

The one on RO-Man is the old one.

[lee_dewing]

Just found a post i did a couple of months ago; same topic.

smudger and monkeyman answered.

Found this:
http://www.thecleaningwarehouse.co.uk/new-merlin-720-ro-2719-p.asp


Just a little confused!!
Apart from merlin and di will i need and other pre-filters (i hope not!)

just reading old posts seems a bit more involved or is that me being dopey again

[8weekly]

Someone said prefilters are a good idea. I don't use any. Assume it will remove 90% of tds.

You might find that production is slowed with a 10" DI. Because of the relatively short life of resin with the 24 tds I get, I use a large resin vessel, then when tds starts to rise I connect the 10" after the large DI and keep changing that for a couple of months.

I want one of these.

http://www.purefreedom.co.uk/2400-gpd-high-volume-ro-system-cw-auto-shut-off-1000ltr-tank-p-666.html

[CleanClear]

my ro-man 200 gpd system is dying.

tried everything, did seem to get it better but production panifully slow now.. (it is 8 years old )

gonna bite the bullet.

swaying between ro-man same-ish system £260 (incl vat)

Or keep thinking of the merlin

window clean wharehouse has this one but it is dearer than the merlin system on ro-man.

http://www.windowcleaningwarehouse.co.uk/shop/index.php?option=com_aceshop&route=product/product&path=93_26_34&product_id=447

Here's ro-man MERLIN,, whats the difference except guessing £80 £100+ price tag?

http://www.ro-man.com/shop/index.php?route=product/product&filter_name=merlin&product_id=130

wcw- say there one wastes 75% less water is that true?

My parents are not on water metre there garage is where my ro system is.


Another important question; can i link my existing di canister to Merlin; I think my di can is 10 inch holds half litre of resin i think???

thanks guys.

Other than looks, them systems are the same. You should easily be able to connect your existing DI system to either of them. The three filter housings in a Merlin equate to two reverse osmosis membranes and one carbon/sediment filter. I'd be wary of paying to much attention to the 75% less claims, as there's no basis for the claim, or comparison. Neverthless Merlins are a good RO system. Also note you cannot adjust the waste to product ratio it is preset. Also you cannot flush them as with other RO's, there is a flush kit available for them at extra cost, but it doesn't flush in the same general sense that we flush other RO's. Its more a short burst after use.

[8weekly]

my ro-man 200 gpd system is dying.

tried everything, did seem to get it better but production panifully slow now.. (it is 8 years old )

gonna bite the bullet.

swaying between ro-man same-ish system £260 (incl vat)

Or keep thinking of the merlin

window clean wharehouse has this one but it is dearer than the merlin system on ro-man.

http://www.windowcleaningwarehouse.co.uk/shop/index.php?option=com_aceshop&route=product/product&path=93_26_34&product_id=447

Here's ro-man MERLIN,, whats the difference except guessing £80 £100+ price tag?

http://www.ro-man.com/shop/index.php?route=product/product&filter_name=merlin&product_id=130

wcw- say there one wastes 75% less water is that true?

My parents are not on water metre there garage is where my ro system is.


Another important question; can i link my existing di canister to Merlin; I think my di can is 10 inch holds half litre of resin i think???

thanks guys.

Other than looks, them systems are the same. You should easily be able to connect your existing DI system to either of them. The three filter housings in a Merlin equate to two reverse osmosis membranes and one carbon/sediment filter. I'd be wary of paying to much attention to the 75% less claims, as there's no basis for the claim, or comparison. Neverthless Merlins are a good RO system. Also note you cannot adjust the waste to product ratio it is preset. Also you cannot flush them as with other RO's, there is a flush kit available for them at extra cost, but it doesn't flush in the same general sense that we flush other RO's. Its more a short burst after use.

You will be changing resin very frequently with a 10" vessel though (depending on tds of your tap water).

[Smudger]

Hi lee the RO Man Merlin is the old design, having upgraded to a 4040 system I can not say if the new design is more efficient than the older style but I got a really good return out of my old Merlin 350 down to around 10 but I used a booster pump to bring water pressure upto 80 psi it produced on average  just over 100 ltr of pure per hr. My 4040 on the same pressure does 160 to 180 ph

I would invest in a bigger di resin bottle for use after the RO and really have 2 to double di for making the most of the resin

Yes there is no flush (waste valve) on the Merlin you will get TDS creep ( high TDS reading ) when starting up this lasts for 3 to 5 minutes before it's flushed out . I ran mine until TDS dropped then plugged it into di vessel - for the record even if I flush the 4040 the first 2 minutes of pure always has higher TDS reading (20 to 30) before dropping to 6

Like any RO you need pre filters it just so happens that the Merlin has a small carbon pre filter but it is strictly for small domestic use you should have a sediment filter and for safety a carbon pre filter before the Merlin - these are pretty cheap housings and filters will set you back forty quid but will safeguard the membranes which to replace are nearly £200

Darran

[lee_dewing]

Thanks guys

Thanks Smudger.

I think i'm gonna go with this RO.
http://www.daqua.co.uk/ro_systems.htm

bottom one 450 gpd.

I used this guy for a pump box last year and i was impressed on equipment/price/next day delivery
I will speak to doug tomorrow.


My old RO was 200 gpd so this will be a quantum leap. (and half the cost of merlin)

I know merlins better faster production. but 450gpd still a good poor cousin.

Thanks very much smudger for your help twice now

I use average 200 ltrs a day have 1mm pencil jets and aqua-dapter.

[Smudger]

No probs mate

Darran