ASM Skimmer Club! - Page 22

ppurcell · #**526** 08/30/2007, 07:37 AM

actually I didn't even think about the meshmod. I suspect you are right that the ozone may break down the enkamat fairly quickly.

I guess I'll make a RHF tubing reactor for it today.

ppurcell · #**527** 08/30/2007, 08:26 AM

actually I didn't even think about the meshmod. I suspect you are right that the ozone may break down the enkamat fairly quickly.

I guess I'll make a RHF tubing reactor for it today.

morty · #**528** 08/30/2007, 01:04 PM

You could also look into a Hyperbarix gas reactor from Filtronics. They don't have a website, but if you go to ebay and search for "hyperbarix" there is one for sale. I own one like the one in the photos, the 36" model, which may be too big for your purposes. But aquatic-store.com also sells the 24" and 16" models.

They work by pumping water thru the reaction chamber and it trickles over bio balls. The outlet valve is closed slightly, so the chamber becomes under a slight pressure. Air/ozone is also pumped in at the top, and this pushes the water level to the bottom. So the chamber basically becomes a pressurized wet/dry unit. The pressure lightly super saturates the water with air/ozone. You then need to run the output water through a carbon filter like RHF's, so the effluent ozone is reduced to O2. (There is also an air release tube that should run through the carbon too.) I wouldn't run mine at much more than 2 psi or else too much air gets saturated into the water, and bubbles start to coat everything in the top few inches in your tank as the gas comes out of solution. It should probably have its own dedicated pump too, a mag 5 would be about right. You could probably run it in-sump if you replaced the steel base screws with nylon ones. More expensive than RHF's coil unit, but more effective, and it would save your skimmer.

edwing206 · #**529** 09/01/2007, 04:09 PM

What does everyone use for the venture or whatever it's called? The airstone? What's best?

GraviT · #**530** 09/02/2007, 01:05 AM

Quote:

Originally posted by edwing206
What does everyone use for the venture or whatever it's called? The airstone? What's best?

Most use the venturi that comes with the skimmer, which looks like this. I've drilled the air inlet out as well as I could without destroying the hose nipple. Some actually drill it out completely and replace the nipple with a piece of rigid airline to take in even more air. You should be able to find more by searching through the forums here.

edwing206 · #**531** 09/02/2007, 04:38 PM

Opps my bad, I have the venturi. I meant what do people use instead of the airstone? I read somewhere about the deltec inlet or something like that.

GraviT · #**532** 09/03/2007, 12:16 AM

There isn't an air stone used in this type of skimmer. The venturi pulls air in, then it's chopped and mixed with water by the impeller.

edwing206 · #**533** 09/03/2007, 12:34 AM

Well I got one used and it came with an airstone attatched to the end of the rubber hose. When I take it off there are less bubbles in the neck, going up to the collection cup.

GraviT · #**534** 09/03/2007, 12:56 AM

Odd, I'm not sure what the point of the air stone would be. Is the impeller still the stock needle wheel, or has it been mesh modded?

edwing206 · #**535** 09/03/2007, 02:53 AM

I kinda modded it my self with gutter guard type of thing, I am waiting for the mesh to come in the mail from a nice guy down in Oregon.

Hightower33 · #**536** 09/07/2007, 04:48 PM

I have a G2 with the recirc mod and the mesh mod, but the sedra 3500 is packing it in.

Should I be replacing with same pump, upgrade to 5000 or use the new octopus pumps thats seems to have replaced the sedras.

If using new octopus, or the dimensions the exact same so as to replace the 3500?

cherubfish pair · #**537** 09/07/2007, 11:27 PM

Quote:

Originally posted by edwing206
I kinda modded it my self with gutter guard type of thing, I am waiting for the mesh to come in the mail from a nice guy down in Oregon.

Can you tell us about your gutter gaurd mod, how it worked, pics, etc, etc?

edwing206 · #**538** 09/08/2007, 12:36 AM

Well I saw it on my local forum.
http://www.reeffrontiers.com/forums/...ad.php?t=28372
I'm hopefully gonna get the mesh in the mail tomorrow and then I'll do the mod the my pump. I didn't really compare before and after. But I will when I add the mesh.

HerbieK · #**539** 09/08/2007, 06:41 AM

I am looking at buying the G4 Plus. I will be using this for a 180 gallon SPS tank w/ total water volume at about 210 gallons.

Would this work OK stock on this setup?

What are your thoughts or impressions of the G4 Plus?

Any input is appreciated.

Thanks.

Herb

edwing206 · #**540** 09/12/2007, 12:02 AM

Bump for Herb.

GraviT · #**541** 09/12/2007, 12:16 AM

Quote:

Originally posted by HerbieK
I am looking at buying the G4 Plus. I will be using this for a 180 gallon SPS tank w/ total water volume at about 210 gallons.

Would this work OK stock on this setup?

What are your thoughts or impressions of the G4 Plus?

Any input is appreciated.

Thanks.

Herb

I'm pretty happy with the G4+ after doing the mesh mod and adding a 45 degree elbow to the end of the water inlet (inside the body). Those 2 mods cost next to nothing to do, took about 20 minutes and the performance blows away the stock configuration by a long shot. It did "OK" before the mods, but I'm much more impressed now.

edwing206 · #**542** 09/12/2007, 01:08 AM

How do you add the elbow? Is it so the water is shooting down into the body?

GraviT · #**543** 09/12/2007, 01:27 AM

Pretty much. The elbow turns to the side and is angled slightly downwards, but not completely. This seems to reduce the amount of turbulence in the body without blasting too many microbubbles towards the water outlet at the bottom. I think there's a couple pictures of this idea buried in the thread..someplace!

edwing206 · #**544** 09/12/2007, 05:13 PM

Cool, thanks. If anybody has those pictures on hand please post, It takes a LONG time to search through the pages. Thanks

GraviT · #**545** 09/12/2007, 09:24 PM

Here's a picture from a few pages back. This skimmer actually runs two pumps, so there are two inlets, both with elbows. This one also has a piece of mesh installed to help reduce turbulence even further, but it should give you an idea of the elbow placement.

edwing206 · #**546** 09/12/2007, 09:31 PM

Cool. Thanks a lot for the picture. So less turbulence the better the skimmer performs? How was the mesh installed? Plastic ring then mesh attached to it?

GraviT · #**547** 09/12/2007, 10:30 PM

Yes, lower amounts of turbulence is better. Too much turbulence in the riser, where the foam forms, causes it to collapse more often, thus resulting in reduced performance. I believe the mesh was held in place with some foam wedged between the mesh (needle point canvas) and the skimmer body.

edwing206 · #**548** 09/12/2007, 11:21 PM

Oh, thanks. Adding mesh to the inside looks easy enough to do. Could I drill a piece of acrylic or something like the bubble king skimmers?

GraviT · #**549** 09/12/2007, 11:24 PM

It's worth a shot! Let us know how it works if you do decide to try it.

Roadie · #**550** 09/17/2007, 10:13 AM

My issue is that a local guy did the mesh mod on my ASM G-3 a few months ago but I've been unable to use the skimmer since as water just immediately fills the collection cup. The skimmer worked fine before this but the bottom of the impeller had a ton of corraline on it so I cleaned it to like new since we were working on it anyway. Now it seems like the pump is doing too good of a job and I can't get enough air (maybe?).

Anyone have a solution to this issue?