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  1. davidabrown66

    Hey John, I found an improved needle wheel impeller that would work perfectly for you. It's...

    Hey John, I found an improved needle wheel impeller that would work perfectly for you. It's about $40 - See Here: Octopus OTP Circulation and Protein Skimmer Pumps | Pinwheel | CoralVue
  2. davidabrown66

    Pacific Coast Import Skimmer vs. ASM G-3 ???

    Also check the Super Reef Octopuss line of skimmers. I have the SRO 5000 external. 90 SCFH, no DIY, pump always starts, virtually silent and it has fail safe design that shuts down skimmer production if it fills your waste bucket.
  3. davidabrown66

    Member of the month - November 2009

    Well done Sarang!
  4. davidabrown66

    Reef Octopus Pump Upgrade

    Got a chance to play around with it again two night ago, and I still must not be getting the mesh quite right. I've done the mesh 30-40 times on my OTP-3000 and I'm getting 900+ LPH from it, but for some reason after 20 or so tries with the Gen-x I still can't get the same numbers (30 SCFH)...
  5. davidabrown66

    Reef Octopus Pump Upgrade

    Hey Mark, sorry I couldn't make it in this weekend, just too busy. Do you just work weekends? I'm out of town this weekend, but will stop by the following weekend. Really appreciate your help. I should be able to do some additional testing by then with some mods to the venturi that impur has...
  6. davidabrown66

    Reef Octopus Pump Upgrade

    I'll be there! Kentrob11 never replied to my PM, and I've gone over the thread he started that talked about the 40 SCFH on his Gen-x 4100, but he was using a bristle material (that didn't pan out) to get those numbers. I also looked over the design of the venturi and barbed adapter to...
  7. davidabrown66

    Reef Octopus Pump Upgrade

    Thanks Mavgi, I just sent him a PM. I should probably reread the thread he started here: http://reefcentral.com/forums/showthread.php?s=&threadid=966407&perpage=25&pagenumber=1
  8. davidabrown66

    Reef Octopus Pump Upgrade

    OK, enough is enough. I've given up on the Gen-x 4100 as a replacement for the OTP-3000. At best, the Gen-x produced 30 SCFH after SP4. This was with it just sitting in a sink with water so no output plumbing, etc. Initially I wasn't able to get more than 22 SCFH, so I brought it into...
  9. davidabrown66

    Anyone plumbed their tank into the basement thru a joist?

    Yep, finished that about 3 weeks later. There wasn't any loss of head due to heighth b/c the basement is slightly lower in elevation than the living rm where the tank is. The pump I use is a Blueline HD70 (1750 Gal/hr, which is the same as a Panworld 200PS or an Iwaki MD-70) in the garage...
  10. davidabrown66

    Reef Octopus Pump Upgrade

    Oh what a difference a day makes. Well, the Gen-x was doing relatively well at 30 SCFH until I opened it up and saw that it had a few strands of mesh that needed trimming b/c it was rubbing on the inside of the volute. I carefully cut those down to the same diameter as the rest of the edge...
  11. davidabrown66

    Reef Octopus Pump Upgrade

    Thanks Mark for doing the mesh on my gen-x this past weekend. I'm still getting 30 SCFH without any plumbing attached so that's a big increase over what I was getting, and I'll be doing some more testing with other venturi's and adding the output plumbing to see if I can I increase the air to...
  12. davidabrown66

    Reef Octopus Pump Upgrade

    Yah, I think I need some help here...I tried the zip ties, but I tried to zip them around the lip of the pinwheel after the pins were removed, and there wasn't enough room for the pw to spin. So, I ended up using fishing line. I was thinking GG with my stock impeller or on the pw without the...
  13. davidabrown66

    Reef Octopus Pump Upgrade

    So, I tried 3 layers of mesh after snipping off all the small nw's of the er impeller and leaving the larger ones to keep the mesh from slipping. I'm now getting 22 SCFH, but I think the pump is cavitating, b/c the output is weak, and pump is extremely noisy. Overall, very disappointing from...
  14. davidabrown66

    The grandson strikes again

    Wow, Don...I can only dream of having someday what was killed in your tank. I truly feel for you. It sounds like you have an extra layer of potential danger to overcome when it comes to maintaining stability. We all have a layer of potential choas that we plan for, but I just can't imagine...
  15. davidabrown66

    Reef Octopus Pump Upgrade

    Received my new Gen-x 4100 last night, and only had time to test the SCFH with the Euroreef NW, volute and venturi. I measured 18 SCFH after doing that which seems a little lower than expected, but then again I have to add mesh still. Which leads me to the next question. How do I mesh the...
  16. davidabrown66

    Ca Reactor

    Depending on what diameter of output line you have, you could use a JG fitting with valve: http://www.marinedepot.com/md_viewItem.asp?idproduct=RO5351
  17. davidabrown66

    Reef Octopus Pump Upgrade

    I received the SP4 venturi/volute and the nw, but I thought the volute was going to be able to use 1" plumbing, but it's just over 1" OD, and to attach plumbing, I either have to insert 3/4 pvc or grind down a 1" SLP coupler. It looks like the better option of course is to grind down a 1"...
  18. davidabrown66

    Reef Octopus Pump Upgrade

    Last night I started playing around with a propane torch and heated up the threads on a standard 1 1/4 female threaded coupler (ever made marshmellows? :shock:), and to my delight I was able to thread it on to a spare venturi I had laying around which as you may know is the same threads that...
  19. davidabrown66

    seriously can not figure it out!!!

    Another possibility is that something was on his hands when he went to do his wc, and that introduced a harmfull response. Something I still have to remind myself to do is wash my hands before going in the tank. I've caught myself using windex on the windows and then sliding over to the tank...
  20. davidabrown66

    Reef Octopus Pump Upgrade

    Good to know mungus. It was your posting, skimmerwhisperer, and hahnmeister that helped me find this option. I think it's an interesting one, that no one has done yet, only talked about so thanks you guys, and I'll post some pics in a couple of weeks. The parts from Spears takes a couple of...
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