water vs. water

.... I am still waiting for my RO/DI booster pump to arrive, meanwhile could
I use distillated water instead of RO/DI?

Why not just get some RO water from your LFS and add it manually?

~m

"Paul" wrote in message
...
... I am still waiting for my RO/DI booster pump to arrive, meanwhile
could I use distillated water instead of RO/DI?

"Paul" wrote in message ...
... I am still waiting for my RO/DI booster pump to arrive, meanwhile
could I use distillated water instead of RO/DI?

Yes, but if you have reef tank make sure it is not made with copper-based equipment.

Pszemol wrote:
"Paul" wrote in message
...

... I am still waiting for my RO/DI booster pump to arrive, meanwhile
could I use distillated water instead of RO/DI?


Yes, but if you have reef tank make sure it is not made with
copper-based equipment.
You do have to watch for this with some distillers they can use copper
condensing units in them, which will release some copper into the water,
which can build up in your tank.

Kim

You are waiting for RO/D unit or a RO/DI booster pump ? Will this booster pump produce a
pressure that is acceptable to the RO/DI. How high a pressure dose it produce ? What is
you tap water pressure. ?

--
Boomer

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Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"Paul" wrote in message
...
: ... I am still waiting for my RO/DI booster pump to arrive, meanwhile could
: I use distillated water instead of RO/DI?
:
:
:

I already have RO/DI unit. Tomorrow the pump should arrive (finally!!!)
I do not know the exact pressure from my faucet, but the RO/DI water
dripping, rather than flowing from the output of the unit. I live in
apartment on third floor, so I figured, that it is way too low.


"Boomer" wrote in message
...
You are waiting for RO/D unit or a RO/DI booster pump ? Will this booster
pump produce a
pressure that is acceptable to the RO/DI. How high a pressure dose it
produce ? What is
you tap water pressure. ?

--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"Paul" wrote in message
...
: ... I am still waiting for my RO/DI booster pump to arrive, meanwhile
could
: I use distillated water instead of RO/DI?
:
:
:

Small home type RO units only make a few gals / day , so how much does yours make ? If
your line pressure is low there will be a much lower output. Most home units work best at
about 65 psi. With a line pressure of say 30 psi the output will be about cut in half.
This is where the booster pump comes in. RO membranes have a certain pressure value which
should not be exceeded and if done so will blow-out the membrane. Most booster pumps put
out 80 psi. and some are adjustable. Most tap water lines run around 30-50 psi but may be
a little higher or lower. Higher pressure will not only make more RO but it will also be
more pure with less waste water. Still, you need to find out what pressure your RO is
rated at. If, for example, your RO was rate at 60 psi and you subjected it to greater than
that, there is going to be problems.

--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"TekCat" wrote in message
...
:I already have RO/DI unit. Tomorrow the pump should arrive (finally!!!)
: I do not know the exact pressure from my faucet, but the RO/DI water
: dripping, rather than flowing from the output of the unit. I live in
: apartment on third floor, so I figured, that it is way too low.
:
:
: "Boomer" wrote in message
: ...
: You are waiting for RO/D unit or a RO/DI booster pump ? Will this booster
: pump produce a
: pressure that is acceptable to the RO/DI. How high a pressure dose it
: produce ? What is
: you tap water pressure. ?
:
: --
: Boomer
:
: Want to talk chemistry ? The Reef Chemistry Forum
: http://www.reefcentral.com/vbulletin/index.php
:
:
: Former US Army Bomb Technician (EOD)
: Member; IABTI, NATEODA, WEODF, ISEE & IPS
:
: If You See Me Running You Better Catch-Up
:
:
: "Paul" wrote in message
: ...
: : ... I am still waiting for my RO/DI booster pump to arrive, meanwhile
: could
: : I use distillated water instead of RO/DI?
: :
: :
: :
:
:
:
:

"Boomer" wrote in message ...
Small home type RO units only make a few gals / day , so how much does yours make ? If
your line pressure is low there will be a much lower output. Most home units work best at
about 65 psi. With a line pressure of say 30 psi the output will be about cut in half.
This is where the booster pump comes in. RO membranes have a certain pressure value which
should not be exceeded and if done so will blow-out the membrane.

Is there an easy way to make booster pump cycle less often ?
I tried to hook-up the booster pump to my unit but the pump
seemed too strong and it pulsed 2-3 times per second causing
noise unbearable for my family.

p.s.
Do you maybe know what is the maximum pressure for membranes sold by KENT ?

I do not know what you mean by cycle. A booster pump should keep a constant pressure on
the RO membrane. Cycling would be self-defeating, for if the pressure changes, do to a
on-off phase, there would be a continuous pressure difference on the membrane.

Or are you talking about a RO container pressure pump, that keeps made RO water in a
container at x pressure to pump to y place.

For the Kent unit, just go to their website and e-mail them.


--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"Pszemol" wrote in message ...
: "Boomer" wrote in message ...
: Small home type RO units only make a few gals / day , so how much does yours make ? If
: your line pressure is low there will be a much lower output. Most home units work best
at
: about 65 psi. With a line pressure of say 30 psi the output will be about cut in half.
: This is where the booster pump comes in. RO membranes have a certain pressure value
which
: should not be exceeded and if done so will blow-out the membrane.
:
: Is there an easy way to make booster pump cycle less often ?
: I tried to hook-up the booster pump to my unit but the pump
: seemed too strong and it pulsed 2-3 times per second causing
: noise unbearable for my family.
:
: p.s.
: Do you maybe know what is the maximum pressure for membranes sold by KENT ?

"Boomer" wrote in message ...
I do not know what you mean by cycle. A booster pump should keep a constant pressure on
the RO membrane. Cycling would be self-defeating, for if the pressure changes, do to a
on-off phase, there would be a continuous pressure difference on the membrane.

Or are you talking about a RO container pressure pump, that keeps made RO water in a
container at x pressure to pump to y place.

OK, more details...
I have got Aquatec DDP5800, what they call "a demand/delivery pump".
Hooked it up to my KENT 10gpd barebone RO system and turned the pump on.
There was a pressure gauge in between the pump and the prefilters...

When the pump was cycling on and off on the limit switch I saw the gauge
going from the 40PSI (my tap water static pressure) to 65-70 PSI the moment
the pump was on. 1/4, maybe 1/8 of the second later the pump turned off itself on
the pressure switch and the pressure started decreasing to the 40PSI when the
pump turned itself on again... This cycling seem to be due to the fact the pump
had large capacity and pumped pressure high up really quick reaching the limit.
The water did not have the way to escape through the RO filter that quickly so
the pump turned off. When the pressure relatively slowly dropped back to the
40PSI the pump turned itself back again...

I almost feel like I need a "water capacitor", using kind of electrical analogy...
Some flexible device/container which could take the pressure from the pump
and release it over time feeding the need for water of the RO filter... Or a much
smaller capacity pump which will just barely keep up with RO filter demand.