Octopus Skimmer Mods - Page 29

Roland Jacques · 12/16/2006, 07:34 PM

Rich, it make me think that DNW-400 could run on 1 pump? 70 scfh 70 watts pretty awesome.

Avast Marine · 12/17/2006, 09:54 AM

OK guys I could use a bit of advice here. My nw200 now recirced with a genx4100 with ER pinwheel and fed with a MJ1200 is not producing consistantly. Either I get a extremely wet skim that is very light colored and fill a gallon cup/day or nothing at all. There seems to be very little middle ground. I have the water level set about a inch below the begining of the transition when I get nothing, move it up a 1/2 inch and I get water skim. Is the recirc pump too big? What can I do here?

danskim · 12/17/2006, 10:06 AM

Hmm perhaps the Gen-X 4100 is a little too big? It's normally rated for 1085gph, while the stock one is probably around 800 or less... (Since someone said the OTP3000 was between OR2500 and 3500).

I thought I saw somewhere that SWC would be selling OTP pumps...
Sorry, not much help.

hdtvguy · 12/17/2006, 10:17 AM

Yes Jayson @ SWC sells all the sizes of the otp pumps. He has many parts for the pumps as well.

mahoneyc3 · 12/17/2006, 10:27 AM

when i got my nw200, it was broken. because of the fact that i got the last one the company had in stock i had to wait 6 months for my new one, i didn't have a tank running that needed it at the time so i said ok, and to make up for it they sent me an whole new skimmer, pump, collection cup, the whole package. so now i have an extra pump and all of the unions laying around.

my questions is this: can i run both pumps on the 200??? its the nonrecirc model, and i have everything i would need (i think, this includes a gate valve mod kit). are there any places this could go drastically wrong (i can think of a few my self, to much air, not enough dwell time, ect.)?? and how hard would it be to accomplish? thanks for you imput, i know tons of people on this thread are crazy with modding, so i just want some input before i go ahead with it all.
thanks in advance- Chris

danskim · 12/17/2006, 10:29 AM

Two pumps on the NW200 body will be too much...
Just stick with one, and have one for backup.
Or perhaps send it to dandy7200.

BigJPDC · 12/17/2006, 10:43 AM

Yo Dandy - mine seems to be pretty unpredictable as well, but at least I have the gate valve to make adjustments easier.
Before any mods I got super dark green-brown sludge very slowly, now I get iced tea colored water quickly if I don't lower the foam and watch it.
Because my bioload has also been in flux as I stock and feed this new tank, I wonder if we need to put together a matrix of things that cause skimmate production, to see if environmental factors weigh more heavily than how much scfm you can pull at a given time?

just a thought,
jp

Avast Marine · 12/17/2006, 11:27 AM

Well I have a extra genx2400 and some magvi mesh. I'm going to do some pump modding and change the outlets to 1" and see if I can get that on instead. I think there is just too much water volume being turned over to get good contact time. The air volume is nice but, I guess that doesn't matter if I can't get a stable production.

mavgi · 12/17/2006, 12:11 PM

Quote:

Originally posted by dandy7200
Well I have a extra genx2400 and some magvi mesh. I'm going to do some pump modding and change the outlets to 1" and see if I can get that on instead. I think there is just too much water volume being turned over to get good contact time. The air volume is nice but, I guess that doesn't matter if I can't get a stable production.

before you do it try to feed the skimmer with smaller pump like the maxi jet 900 .or if you can put a ball valve on the pipe and try to reduce the water and see what happen . (i don't know how the maxi jet connect to the skimmer but if it's with regular vinyl tube you can add quick ball valve like those on the phosban reactor and try it )

Avast Marine · 12/17/2006, 12:26 PM

Will do Magvi. I have some of those laying around I believe. I am going to mad the 2400 anyway, what do you think the max airflow I should expect with that pump? I plan to round out the inside shroud, enlarge everything to 1" plumbing and make a new venturi, pretty much just like kent did.

mavgi · 12/17/2006, 01:01 PM

Quote:

Originally posted by dandy7200
Will do Magvi. I have some of those laying around I believe. I am going to mad the 2400 anyway, what do you think the max airflow I should expect with that pump? I plan to round out the inside shroud, enlarge everything to 1" plumbing and make a new venturi, pretty much just like kent did.

i don't know how much air this pump can pull max , i didn't test this type of pump .

what i suggest to do it step by step like that you will be able to find the best way or the best result you want the skimmer perform , if you will do all together you will not be able to know what every mod or step cause to the perform that will be changed ......

BigJPDC · 12/17/2006, 01:49 PM

where are folks getting their gutter guard from? I have checked both HD and Lowes and only seen the metal gutter guard.

thanks,
jp

danskim · 12/17/2006, 01:53 PM

Ace had some when I visited.

RichConley · 12/17/2006, 02:30 PM

Quote:

Originally posted by dandy7200
OK guys I could use a bit of advice here. My nw200 now recirced with a genx4100 with ER pinwheel and fed with a MJ1200 is not producing consistantly. Either I get a extremely wet skim that is very light colored and fill a gallon cup/day or nothing at all. There seems to be very little middle ground. I have the water level set about a inch below the begining of the transition when I get nothing, move it up a 1/2 inch and I get water skim. Is the recirc pump too big? What can I do here?

Gate valve or standpipe?

Avast Marine · 12/17/2006, 02:37 PM

Rich, standpipe.

JP, I have tons, I also have the good mesh from Magvi, you are welcome to it if you like. I'm in Alexandria. PM me if interested.

magvi, I put the valve on and reduced flow by 1/3. Now the wait begins

Carlvdm · 12/18/2006, 12:16 AM

Hi Guys

Please help.

I just installed a 3 pump Reeftek/Octopus insump skimmer, a monstor.

Can one replace the slide pipe to ajust the waterlevel with a PVC ball valave and reroute the water to my next chamber.

Kind regards

Carl

tgunn · 12/18/2006, 11:28 AM

Hey, has anyone tried using an air pump to force more air into the venturis on the recirculating pumps? Think this would make any difference? Kinda like how Spazz has used an air pump to turbocharge the needlewheel Darts he's made?

RichConley · 12/18/2006, 11:46 AM

Quote:

Originally posted by tgunn
Hey, has anyone tried using an air pump to force more air into the venturis on the recirculating pumps? Think this would make any difference? Kinda like how Spazz has used an air pump to turbocharge the needlewheel Darts he's made?

THeres really no point. Just throw some mesh in them, and they'll pull significantly more air than the body can handle.

tgunn · 12/18/2006, 02:36 PM

Quote:

Originally posted by RichConley
THeres really no point. Just throw some mesh in them, and they'll pull significantly more air than the body can handle.

I'll have to re-read some of the instructions on meshwheel modding and give this a shot..

I'm all for more air!

Thanks!
Tyler

JCTewks · 12/19/2006, 12:04 PM

Rich,

do you think that enlarging the output made a big difference in how much air you are pulling? also, with that bigger in/out and 50 or 70 SCFH is the turbulence a big problem?

Jeff

tgunn · 12/19/2006, 09:51 PM

Does anyone know where I can get a spare impeller for the three pump recirculating Octopus skimmer pumps?

I'd like to try the mesh mod but don't want to modify an existing impeller.

Waxxiemann · 12/19/2006, 09:59 PM

Tyler,

Can't you get one from Jayson @ SWC?

CarlC · 12/19/2006, 10:00 PM

Tgunn give Jayson at SWC a call.

Carl

tgunn · 12/19/2006, 10:26 PM

Heh, why didn't I think of that??

Lol. Thanks guys1

Tyler

hdtvguy · 12/20/2006, 12:57 AM

Tyler

Jayson will be getting his mesh in he ordered soon. I would hold off should be this week I think? I plan to add the mesh to my quad. Just a heads up.

Rob

12/16/2006, 07:34 PM	#701
Roland Jacques Premium Member Join Date: Mar 2003 Location: Atlanta GA Posts: 2,848	Rich, it make me think that DNW-400 could run on 1 pump? 70 scfh 70 watts pretty awesome. __________________ Roland

12/17/2006, 09:54 AM	#702
Avast Marine RC Sponsor Join Date: Feb 2006 Location: Northern VA Posts: 2,446	OK guys I could use a bit of advice here. My nw200 now recirced with a genx4100 with ER pinwheel and fed with a MJ1200 is not producing consistantly. Either I get a extremely wet skim that is very light colored and fill a gallon cup/day or nothing at all. There seems to be very little middle ground. I have the water level set about a inch below the begining of the transition when I get nothing, move it up a 1/2 inch and I get water skim. Is the recirc pump too big? What can I do here? __________________ Dan Don't rush art, you get bad art.

12/17/2006, 10:06 AM	#703
danskim Registered Member Join Date: Jan 2005 Location: Ellicott City, MD Posts: 1,639	Hmm perhaps the Gen-X 4100 is a little too big? It's normally rated for 1085gph, while the stock one is probably around 800 or less... (Since someone said the OTP3000 was between OR2500 and 3500). I thought I saw somewhere that SWC would be selling OTP pumps... Sorry, not much help. __________________ Dan The sea, once it casts its spell, holds one in its net of wonder forever. -Jacques Cousteau

12/17/2006, 10:27 AM	#705
mahoneyc3 Registered Member Join Date: Mar 2006 Location: milford ct Posts: 402	when i got my nw200, it was broken. because of the fact that i got the last one the company had in stock i had to wait 6 months for my new one, i didn't have a tank running that needed it at the time so i said ok, and to make up for it they sent me an whole new skimmer, pump, collection cup, the whole package. so now i have an extra pump and all of the unions laying around. my questions is this: can i run both pumps on the 200??? its the nonrecirc model, and i have everything i would need (i think, this includes a gate valve mod kit). are there any places this could go drastically wrong (i can think of a few my self, to much air, not enough dwell time, ect.)?? and how hard would it be to accomplish? thanks for you imput, i know tons of people on this thread are crazy with modding, so i just want some input before i go ahead with it all. thanks in advance- Chris __________________ im such an addict, i upgraded my 125 to a 180 befor there was even water in it! chris

12/17/2006, 10:29 AM	#706
danskim Registered Member Join Date: Jan 2005 Location: Ellicott City, MD Posts: 1,639	Two pumps on the NW200 body will be too much... Just stick with one, and have one for backup. Or perhaps send it to dandy7200. __________________ Dan The sea, once it casts its spell, holds one in its net of wonder forever. -Jacques Cousteau

12/17/2006, 10:17 AM	#704
hdtvguy Registered Member Join Date: Mar 2003 Location: Winnipeg,Canada Posts: 1,287	Yes Jayson @ SWC sells all the sizes of the otp pumps. He has many parts for the pumps as well.

12/17/2006, 10:43 AM	#707
BigJPDC Registered Member Join Date: Oct 2005 Location: Northern Virginia Posts: 959	Yo Dandy - mine seems to be pretty unpredictable as well, but at least I have the gate valve to make adjustments easier. Before any mods I got super dark green-brown sludge very slowly, now I get iced tea colored water quickly if I don't lower the foam and watch it. Because my bioload has also been in flux as I stock and feed this new tank, I wonder if we need to put together a matrix of things that cause skimmate production, to see if environmental factors weigh more heavily than how much scfm you can pull at a given time? just a thought, jp __________________ Rock in the tank is money not in my bank. Current Tank Info: 65 RR AGA

12/17/2006, 11:27 AM	#708
Avast Marine RC Sponsor Join Date: Feb 2006 Location: Northern VA Posts: 2,446	Well I have a extra genx2400 and some magvi mesh. I'm going to do some pump modding and change the outlets to 1" and see if I can get that on instead. I think there is just too much water volume being turned over to get good contact time. The air volume is nice but, I guess that doesn't matter if I can't get a stable production. __________________ Dan Don't rush art, you get bad art.

12/17/2006, 12:26 PM	#710
Avast Marine RC Sponsor Join Date: Feb 2006 Location: Northern VA Posts: 2,446	Will do Magvi. I have some of those laying around I believe. I am going to mad the 2400 anyway, what do you think the max airflow I should expect with that pump? I plan to round out the inside shroud, enlarge everything to 1" plumbing and make a new venturi, pretty much just like kent did. __________________ Dan Don't rush art, you get bad art.

12/17/2006, 01:49 PM	#712
BigJPDC Registered Member Join Date: Oct 2005 Location: Northern Virginia Posts: 959	where are folks getting their gutter guard from? I have checked both HD and Lowes and only seen the metal gutter guard. thanks, jp __________________ Rock in the tank is money not in my bank. Current Tank Info: 65 RR AGA

12/17/2006, 01:53 PM	#713
danskim Registered Member Join Date: Jan 2005 Location: Ellicott City, MD Posts: 1,639	Ace had some when I visited. __________________ Dan The sea, once it casts its spell, holds one in its net of wonder forever. -Jacques Cousteau

12/17/2006, 02:37 PM	#715
Avast Marine RC Sponsor Join Date: Feb 2006 Location: Northern VA Posts: 2,446	Rich, standpipe. JP, I have tons, I also have the good mesh from Magvi, you are welcome to it if you like. I'm in Alexandria. PM me if interested. magvi, I put the valve on and reduced flow by 1/3. Now the wait begins __________________ Dan Don't rush art, you get bad art.

12/18/2006, 12:16 AM	#716
Carlvdm Registered Member Join Date: Oct 2006 Location: Randburg RSA Posts: 13	3 Pump Octo in sump Hi Guys Please help. I just installed a 3 pump Reeftek/Octopus insump skimmer, a monstor. Can one replace the slide pipe to ajust the waterlevel with a PVC ball valave and reroute the water to my next chamber. Kind regards Carl

12/18/2006, 11:28 AM	#717
tgunn Registered Member Join Date: Apr 2003 Location: Cupertino, CA USA Posts: 4,027	Hey, has anyone tried using an air pump to force more air into the venturis on the recirculating pumps? Think this would make any difference? Kinda like how Spazz has used an air pump to turbocharge the needlewheel Darts he's made?

12/19/2006, 12:04 PM	#720
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	Rich, do you think that enlarging the output made a big difference in how much air you are pulling? also, with that bigger in/out and 50 or 70 SCFH is the turbulence a big problem? Jeff

12/19/2006, 09:51 PM	#721
tgunn Registered Member Join Date: Apr 2003 Location: Cupertino, CA USA Posts: 4,027	Does anyone know where I can get a spare impeller for the three pump recirculating Octopus skimmer pumps? I'd like to try the mesh mod but don't want to modify an existing impeller.

12/19/2006, 09:59 PM	#722
Waxxiemann Registered Member Join Date: Feb 2006 Location: Winnipeg Posts: 2,364	Tyler, Can't you get one from Jayson @ SWC? __________________ "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe." Albert Einstein

12/19/2006, 10:00 PM	#723
CarlC Premium Member Join Date: Sep 2005 Location: Leesport, PA Posts: 1,099	Tgunn give Jayson at SWC a call. Carl

12/19/2006, 10:26 PM	#724
tgunn Registered Member Join Date: Apr 2003 Location: Cupertino, CA USA Posts: 4,027	Heh, why didn't I think of that?? Lol. Thanks guys1 Tyler

12/20/2006, 12:57 AM	#725
hdtvguy Registered Member Join Date: Mar 2003 Location: Winnipeg,Canada Posts: 1,287	Tyler Jayson will be getting his mesh in he ordered soon. I would hold off should be this week I think? I plan to add the mesh to my quad. Just a heads up. Rob