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Am I right in thinking.....
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kris martin
Cleanitup God
Posts:
959
Am I right in thinking.....
«
on:
January 01, 2009, 12:48:49 pm »
am i right in thinking that the Merlin RO's produce water at near tap rate or have i read wrong somewhere?
and are merlin's better than RO man?
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SherwoodCleaningSe
Cleanitup God
Posts:
2368
Re: Am I right in thinking.....
«
Reply #1 on:
January 01, 2009, 02:34:22 pm »
I believe that merlins have about an 80% rejection ratio. So that would mean off of tap pressure you have only about 20% flow. Of course this will change depending on how good the pressure is.
4040's can be set to reject only 50% at good pressure. So half tap flow. DI only would get near tap flow rate. Or a 4040 on a booster pump would get near it.
Simon.
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tomy jackson
Guest
Re: Am I right in thinking.....
«
Reply #2 on:
January 01, 2009, 02:35:28 pm »
no , ther not bad at macking water but 70% down the dran
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Nathanael Jones
Cleanitup God
Posts:
5596
Re: Am I right in thinking.....
«
Reply #3 on:
January 01, 2009, 02:39:22 pm »
I've a merlin and it produces water @ 1 litre in a minute and 36 seconds. My water pressure is rubbish though, 30psi MAX,.. sometimes it drops to 20psi!
The rejection rate is high though, prob about 70% with my tap pressure,... but I'm not on a meter!!
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Dave Turley
Cleanitup God
Posts:
896
Re: Am I right in thinking.....
«
Reply #4 on:
January 01, 2009, 03:56:59 pm »
my merlin produces at 8-12ppm at 60-80psi but i'd guess 25ppm ish is more like the norm depending on your pressure/tap tds.
lots of waste water, 1 part pure to 4 or 5 parts waste
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Am I right in thinking.....