Re: chiller and ro/di system

[richard reynolds]

ill leave the ro/di for someone else, with the only comment that i like the
kent RO/DI's.

> I have a 37 gal fish, anemone, lots (45 lbs) of LR, DSB with 3 55W PC
> lights. In my sump(5 gal) I have a mag drive to pump water up to my tank,
> as well as a pump for my protein skimmer. I also have a UV sterilizer.
> Throughput is about 400 g/hour.
>
> Can anyone suggest a simple/inexpensive chiller that will bring my temp
from
> about 85F to 78F ? I am fairly new to this hobby and am bewildered by all
> the choices.
> Any easy suggestions ?

your best choice is to yank that UV, thatll do some, the next is a fan over
the sump, . 3 55w PC's are not going to heat the water all that much, some
but not that much. the next thing to look at is your mag drive pump, see if
it needs cleaning, or is it significantly underpowered, you didnt state
which one it is, nor how high the head from the sump to tank is, but it
sounded like its driving a venturi skimmer a UV and the return. so if its
underpowered itll add to the heat.

--
richard reynolds

[plaguebeast]

sorry, the Mag drive 7 is brand new. Maybe a week old.


"plaguebeast" > wrote in message
...
>
> "richard reynolds" > wrote in message
> .. .
> > ill leave the ro/di for someone else, with the only comment that i like
> the
> > kent RO/DI's.
> >
> > > I have a 37 gal fish, anemone, lots (45 lbs) of LR, DSB with 3 55W PC
> > > lights. In my sump(5 gal) I have a mag drive to pump water up to my
> tank,
> > > as well as a pump for my protein skimmer. I also have a UV
sterilizer.
> > > Throughput is about 400 g/hour.
> > >
> > > Can anyone suggest a simple/inexpensive chiller that will bring my
temp
> > from
> > > about 85F to 78F ? I am fairly new to this hobby and am bewildered by
> all
> > > the choices.
> > > Any easy suggestions ?
> >
> > your best choice is to yank that UV, thatll do some, the next is a fan
> over
> > the sump, . 3 55w PC's are not going to heat the water all that much,
some
> > but not that much. the next thing to look at is your mag drive pump, see
> if
> > it needs cleaning, or is it significantly underpowered, you didnt state
> > which one it is, nor how high the head from the sump to tank is, but it
> > sounded like its driving a venturi skimmer a UV and the return. so if
its
> > underpowered itll add to the heat.
> >
> > --
> > richard reynolds
> >
> >
> >
> >
>
> The mag drive is a model 7. I have my overflow going to a 5 gal sump, in
> the sump is a Sealife skimmer with it's own pump that empties back into
the
> pump. Then the mag drive 7 pumps the water through the UV and about 5
feet
> back up to the top of the tank. According to the Mag drive box, 5.5'
should
> give me 400 g/hour. I don't think I am over stressing the pump but tell
me
> if you disagree. As for the lights, they get pretty warm.
>
> Should I put the UV on a timer and run it only for an hour a day ? Would
it
> still be effective ? Does it really heat the water that much ?
>
>
>

[richard reynolds]

> sorry, the Mag drive 7 is brand new. Maybe a week old.

ok well probibly doesnt need cleaning then :)

> > > > Can anyone suggest a simple/inexpensive chiller that will bring my
temp from
> > > > about 85F to 78F ? I am fairly new to this hobby and am bewildered
by
> > > > Any easy suggestions ?
> > The mag drive is a model 7. I have my overflow going to a 5 gal sump,
in
> > the sump is a Sealife skimmer with it's own pump that empties back into
the
> > pump. Then the mag drive 7 pumps the water through the UV and about 5
feet
> > back up to the top of the tank. According to the Mag drive box, 5.5'
should
> > give me 400 g/hour. I don't think I am over stressing the pump but tell
me
> > if you disagree. As for the lights, they get pretty warm.
> > Should I put the UV on a timer and run it only for an hour a day ?
Would it
> > still be effective ? Does it really heat the water that much ?

the thing with UV's is for them to work the water has to stay very close to
a very bright light for a good period of time, so one of a few things is
happening, its either rated for the flow your using, and its worming the
water up or its underrated in which not only is it adding heat, but its
putting even more back pressure on the pump, you havent added for
backpressure of the UV to get 400gph so its probibly less. its not all that
hard to estimate the resistance as an additional 2ft of head, and its
probibly more. the other side is UV's generally dont belong in a reef. what
good they do is offset by the bad they do which is killing off your plankton

in the end removing the UV and placing a fan over the sump and maybee one
next to the light bulbs, will probibly fix your heat problems. ive had more
light over my 37T and the fans have done most of the chilling needed, every
now and then it requires a little more help, and a DIY TEC based chiller
does good. i have ran that tank with 2 175W mh bulbs and additional PC and
NO bulbs all at once. including last summer and i live in SoCal so its not
exactly cold here durring the summer.

hth
--
richard reynolds

[richard reynolds]

Dragon Slayer wrote
> >3 55w PC's are not going to heat the water all that much, some
> >but not that much.
>
> I disagree with Richard here, 3x55 PC is just like having a 165w heater
> sitting in your canopy. while this may not be much of a factor on a 200
> gallon tank, it certainly is on a 37.

woohoo fun!!! i say its more like a 100w heater but ok werks for me. its still not that
much even at 165w ive done more and countered it with a fan or two. as "not that much" is
a relative statement its not that much compaired to 2 175w mh's and 1 55wPC and 3 20w NO's
also a note his UV is probibly another unknown and its enclosed so no air to keep the
transfer of heat down.

> on my 29 I have 4x55w pc and it caused a tremendous amount of heat transfer
> to the water when they were on. within 4 hours of lights on the tank temp
> would rise from 77 to 84. with the addition of two 3" fans that are on the
> same timer as the lights, the tank temp is constant at 79-80. evaporation
> is approximately 1/2 gallon per day.

oooh small fan my smallest is a set of 4" across the lights, and a 8" on top of the sump
:) my evaporation is a little higher ok more like ALOT but temp stays about 79~80

> just this week I replaced the 110w of PC over my 75 gallon FO with 800w of
> MH in a conversion to a reef. the tank temp over the past 16 months with
> the pc lighting has always remained at 82-84, with the 800w MHs and six of
> the 3" fans (3 pushing cool air in and 3 pulling hot air out) the tank has
> actually cooled to 79-80. this is a good plug for fans as a cheap way to
> cool your tank. fact is they work.

last summer i ran my 37T with those lights, this summer is different I have a 37T with
only 2 NO and 1 175w MH and my 150XH plumbed together and the lights for the 150 are on
kinda a minum duty (1 175mh, with 2 250w's turned off for now) because i dont have corals
in it yet. just enough to aid in coraline growth. the 37 is going to be just for fish &
softies and the 150 will hold some softies along with some stony corals and only a few
fish. i do like using fans to chill things, chillers cost tooooo much not only in
initial cost, but they kill your E-bill

> kc

hehe :)
--
richard reynolds

[kim and aaron]

need to know more info for your heat problem... open top? add a fan on top
of tank? blow a fan across your sump? chiller? turn your ac on ? just a few
suggestions... also.. check out this site... hate to say it.. but this
newgroup doesn't give you much to go by
http://reefcentral.com ... what's your temp with the lights off?.. how close
are your lights to the tank?


"plaguebeast" > wrote in message
...
> I have a 37 gal fish, anemone, lots (45 lbs) of LR, DSB with 3 55W PC
> lights. In my sump(5 gal) I have a mag drive to pump water up to my tank,
> as well as a pump for my protein skimmer. I also have a UV sterilizer.
> Throughput is about 400 g/hour.
>
> Can anyone suggest a simple/inexpensive chiller that will bring my temp
from
> about 85F to 78F ? I am fairly new to this hobby and am bewildered by all
> the choices.
>
> I also need an RO/DI system and when I looked at the web sites selling
them
> I saw many options and was again overwhelmed by the choices. All I want
is
> a system that will take my tap water and give me 10 or 15 gallons in a
> relatively short time so I don't have to carry jugs of water from the
> grocery store.
>
> Any easy suggestions ?
>
>
>
>

[Shane Kennedy]

i recently did some ro/di researching
& did a bit of price comparison
what i ended up w/ was this
http://www.aquariumwaterfilters.com/RODI/Barracuda.html

got the 50 gal/day unit
which realistically only generates a little over a gallon/hour

also got the 4gal storage tank
they'll sale it separately from the kitchen kit if you ask

you can buy the 40 gal tank, but it is not pressurized
you could probably do the same thing w/ a trash can