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Search: Posts Made By: jdieck
Forum: Zoanthids 01/12/2008, 01:24 AM
Replies: 398
Views: 33,118
Posted By jdieck
The lime water in the reactor will totally...

The lime water in the reactor will totally neutralize any vitamin C you add to it.
Forum: Lighting, Filtration & Other Equipment 01/12/2008, 01:14 AM
Replies: 11
Views: 5,247
Posted By jdieck
At a 4-5 feet height with 1" pipe there will be...

At a 4-5 feet height with 1" pipe there will be about a 6 to 6.5 feet of head pressure on the pump and 8 feet head using 3/4" pipe under ideal conditions. By the performance curve the actual maximum...
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 11:37 PM
Replies: 11
Views: 5,247
Posted By jdieck
Actually that pump might even be small for a 130...

Actually that pump might even be small for a 130 gal tank and the manufacturer recommends piping of 11/2" diameter!
The first question I would make is if you are using the pump pre-filter, if you do...
Forum: The Reef Chemistry Forum 01/11/2008, 11:28 PM
Replies: 138
Views: 37,430
Posted By jdieck
Actually it seems to be monohydrate rather than...

Actually it seems to be monohydrate rather than anhydrous. In any case it has less water than the flake (dihydrate) which will make only a diference in concentration of Calcium and Chloride per unit...
Forum: Reef Discussion 01/11/2008, 09:49 PM
Replies: 618
Views: 68,815
Posted By jdieck
Besides killing the existing algae I think it is...

Besides killing the existing algae I think it is important to work toward removing the original issues that caused the high nutrients in the first place.
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 04:06 PM
Replies: 25
Views: 2,328
Posted By jdieck
Here is Dow's technical manual, take a look at...

Here is Dow's technical manual, take a look at the design alternatives and configuration including the multi-stage option with up to 75% recovery for the whole system despite the fact that the...
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 03:42 PM
Replies: 25
Views: 2,328
Posted By jdieck
Multiple membrane combinations have been used in...

Multiple membrane combinations have been used in industrial systems for years, even spectrapure sells the piggy back system to install the second membrane and filterguys have their supersaver.
The...
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 03:31 PM
Replies: 25
Views: 2,328
Posted By jdieck
I do not see why not just note that in the above...

I do not see why not just note that in the above configuration the pressure out of the waste on the second membrane will be about 10% lower than using a single membrane. There is another possibility...
Forum: Do It Yourself 01/11/2008, 02:33 PM
Replies: 6
Views: 839
Posted By jdieck
There are diferent grades of ruberized sand...

There are diferent grades of ruberized sand cloth, if the scratches are deep you can use 400 or 600 grit and move into 1000, 3000, 6000 and 8000 or 12000 grit in steps.
Forum: The Reef Chemistry Forum 01/11/2008, 01:57 PM
Replies: 138
Views: 37,430
Posted By jdieck
If there is no other interference, it might be...

If there is no other interference, it might be possible to get a good approximation reading by diluting the sample using RO/DI or distilled water.
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 01:34 PM
Replies: 25
Views: 2,328
Posted By jdieck
I do not know how you have your system connected...

I do not know how you have your system connected or if you are using individual restrictors for each membrane or if you adjusted a single overall restrictor to give you 4:1 overall but in my system...
Forum: Lighting, Filtration & Other Equipment 01/11/2008, 02:17 AM
Replies: 25
Views: 2,328
Posted By jdieck
Re: Have 2 RO/DI units, can I run Waste water from one to the other?

Yes and no :D

To get any advantage you need to use two membranes of the same capacity.
If you use diferent capacity, then to be able to keep the membranes operating within their specification 4:1...
Forum: The Reef Chemistry Forum 01/10/2008, 09:42 PM
Replies: 4
Views: 1,169
Posted By jdieck
We need to be careful here as the comparison may...

We need to be careful here as the comparison may not be extensded to other medias, GAC has a totally different crystalography than GFO also GAC does not loose performance because of precipitation on...
Forum: Do It Yourself 01/10/2008, 09:37 PM
Replies: 33
Views: 2,853
Posted By jdieck
The change in power consumption on a centrifugal...

The change in power consumption on a centrifugal pump is proportional to the change in flow and also to the change in head.

The actual formula is:
BHP = (Q x H x SG)/(3960 x % EF)
where
BHP =...
Forum: Do It Yourself 01/10/2008, 08:50 PM
Replies: 33
Views: 2,853
Posted By jdieck
Sorry to say but you are rading the equivalent...

Sorry to say but you are rading the equivalent lenght of fittings table wrong.
The table of equivalents will give you the equivalent in lenght of stright pipe not of feet of head loss.

A 3" 90*...
Forum: The Reef Chemistry Forum 01/10/2008, 11:37 AM
Replies: 4
Views: 1,169
Posted By jdieck
I had the oportunity to test compare pellet vs...

I had the oportunity to test compare pellet vs granules.
The main findings were:

a) I was not able to test if the pellet loose less material or not than the granules but it is noticeable that...
Forum: The Reef Chemistry Forum 01/10/2008, 12:12 AM
Replies: 17
Views: 927
Posted By jdieck
Same thing CA = Cyanoacrylate = Crazy glue

Same thing CA = Cyanoacrylate = Crazy glue
Forum: Lighting, Filtration & Other Equipment 01/09/2008, 02:59 PM
Replies: 18
Views: 1,153
Posted By jdieck
Unplug the unit from power, connect the air inlet...

Unplug the unit from power, connect the air inlet fitting to your RO/DI unit pure water outlet line and the outlet to a drain and let several gallons or RO/DI run trough it, drain the unit. Once done...
Forum: The Reef Chemistry Forum 01/09/2008, 02:52 PM
Replies: 17
Views: 927
Posted By jdieck
Try Krylon paints, they have been used in PVC...

Try Krylon paints, they have been used in PVC piping under water with no issues.
Avoid any crommed pieces of the model as well as any metalic looking paint, they are most likely aluminized or have...
Forum: Southern California Reefers 01/09/2008, 02:21 AM
Replies: 14
Views: 695
Posted By jdieck
The pictures in this thread from the All-Reefs...

The pictures in this thread from the All-Reefs site can give you an excellent idea:
http://www.all-reefs.com/inicio/viewtopic.php?t=3058
Forum: Lighting, Filtration & Other Equipment 01/08/2008, 01:49 AM
Replies: 6
Views: 284
Posted By jdieck
I think you could think of a way to have a stop...

I think you could think of a way to have a stop in the outlet that will stop the impeller in one way but not the other. something that is in angle to the impeller circunference.
Alternatively I...
Forum: Lighting, Filtration & Other Equipment 01/08/2008, 01:12 AM
Replies: 6
Views: 284
Posted By jdieck
http://www.reefchili.com/MJmods.html ...

http://www.reefchili.com/MJmods.html

http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=AF-SF1600&Category_Code=Maxijet

Not modified they can be used as wave makers,...
Forum: SPS Identification 01/08/2008, 01:05 AM
Replies: 4
Views: 1,416
Posted By jdieck
I back up the ID of yellow turbinaria for the one...

I back up the ID of yellow turbinaria for the one on the left.
Forum: New to the Hobby 01/08/2008, 01:02 AM
Replies: 15
Views: 346
Posted By jdieck
Two much Kalk and it may increase calcium and...

Two much Kalk and it may increase calcium and alkalinity too much. Although you can measure calcium to know if you are adding too much the change is more sensitive to alkalinity so that is what I...
Forum: New to the Hobby 01/08/2008, 12:56 AM
Replies: 19
Views: 829
Posted By jdieck
The Kent scraper you purchased is excellent if...

The Kent scraper you purchased is excellent if you use the stainless replacement blade. The plastic blade is for acrylic and gets dull very quickly with the coralline.
Showing results 1 to 25 of 500

 
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