Brianemone Posted July 12, 2005 Report Share Posted July 12, 2005 hey craker i think the deltec they are talking about dont have pumps to bring in the water but rather are inline with the overflow ect correct me if im wrong Quote Link to comment Share on other sites More sharing options...
cracker Posted July 12, 2005 Report Share Posted July 12, 2005 Ohh....How dumb if this is the case. Quote Link to comment Share on other sites More sharing options...
reef Posted July 12, 2005 Report Share Posted July 12, 2005 I think what is happening is that the skimmer is quite high up so it is feeding quite quick and siphoning the water much quicker than pumping water into it, So to get the best out of the skimmer I would reduce the water going into it so that the water stays in the skimmer much longer so that you get better contact time. Quote Link to comment Share on other sites More sharing options...
suphew Posted July 12, 2005 Report Share Posted July 12, 2005 From what I understand of the articule, the reason they suggest that low flow rate through the skimmer is because the air contact time for some organics is longer (up to two minutes) so if you are running your water through too fast they don't attach to the air bubbles. So running your skimmer fast might pull out a little more of one type (so you get more skim mate) but collects none of some types of organics?? Just how I understood it, I'm far from expert Quote Link to comment Share on other sites More sharing options...
Pies Posted July 12, 2005 Author Report Share Posted July 12, 2005 Cracker - hahaha your well of the mark man Get my drift? There is no water syphoning, its all being pressure filled, just by gravity not a pump. Makes no difference the result is identical. I've been running it FULL NOISE since Sunday. I'll take a photo of Sunday of the collection cup for you all too see. Then I will reduce the water throughput down by 50% (to approx 3000lph best guess) and let it run for a week and take another photo. I can put as much or as little water though as I want. I just want to know what is optimum. Maybee doing week FULL ON and a week in spec is the ultimte? Not sure if there really ever will be an answer. Piezola Quote Link to comment Share on other sites More sharing options...
reef Posted July 12, 2005 Report Share Posted July 12, 2005 Just to clarify pies, you are using a iwaki 100 which does about 8400lph at zero head. so at the moment the pump is running with the ball valve fully open.?? In the photo of your iwaki the ball valve is closed a little??? Quote Link to comment Share on other sites More sharing options...
Pies Posted July 12, 2005 Author Report Share Posted July 12, 2005 That photo was taken the day it was installed (new sump). Its fully open now. Pie Quote Link to comment Share on other sites More sharing options...
Pies Posted July 12, 2005 Author Report Share Posted July 12, 2005 Pic of how its T'd off. FYI. Pie PS: Hand on ill pop down stairs and take a few photos now. Back in 30. Pie Quote Link to comment Share on other sites More sharing options...
Pies Posted July 12, 2005 Author Report Share Posted July 12, 2005 Here is a pic of the skimmer sitting next to the refugium. Note the T off the back. Both the skimmer and the T are feeding directly into the refugium. The refugium drains into the sump via 2x 25mm Durso stand pipes. On the old tank it was fed by 2x Ehiem 1262s and 1x IWAKI 30RXLT, now fed by the single IWAKI 100. The overflows could not handle any more flow. I have had to 'hone' out the bulkheads to allow for the extra flow. Here is a zoomed out pic of the whole refugium: Here is the pic for Reef. Showing water exiting the skimmer into the refugium. It is fair ROARING through threre. This is the 32mm pipe and i've had to put rock in the bottom of the 650mm deep tank to stop it digging a hole in the sand: Note the light on the tank looks a little odd. I just turned on the halides to take the photos, they don't come on until 11pm for 12 hrs (reverse cycle of the main tank). So they were just warming up. FYI SteveA - Note your 2 carpet anemones are doing great. The Blue one was looking very touch and go for a while (the one that stung and stuck to you when you brought it around), but its recovered and both are doing great. Pie Quote Link to comment Share on other sites More sharing options...
Ira Posted July 12, 2005 Report Share Posted July 12, 2005 (the one that stung and stuck to you when you brought it around), hahaha, Maybe it didn't want to go? Quote Link to comment Share on other sites More sharing options...
cracker Posted July 12, 2005 Report Share Posted July 12, 2005 Well why not pump the water to it with a 3000LPH pump and save all the guessing! Oops, missed the last page! ok....I need to see one of these bid D's up close to see what the hell this is all about!! Quote Link to comment Share on other sites More sharing options...
Brianemone Posted July 12, 2005 Report Share Posted July 12, 2005 that skimmer probably holds as much water as my tank at home. Quote Link to comment Share on other sites More sharing options...
RnB Posted July 12, 2005 Report Share Posted July 12, 2005 pies the article says that its been proven some things take up 2 mins to attach to a bubble.... this is pure chemical engineering stuff.. proven science you could pas the water through 100 times a day... but if its not going to skim everything out if the average contact time is less then 2 min....... Peter Quote Link to comment Share on other sites More sharing options...
chimera Posted July 12, 2005 Report Share Posted July 12, 2005 you could pas the water through 100 times a day... but if its not going to skim everything out if the average contact time is less then 2 min....... i think we've already covered that Quote Link to comment Share on other sites More sharing options...
Pies Posted July 12, 2005 Author Report Share Posted July 12, 2005 Yep thanks Pete and Suphew. Its acutally been quite a good thread once people started to understand what I was asking. Very interesting about the 2 min dwell time for some organics. That alone pretty much answers my question. So what I need now is a 2nd skimmer. One going hard core, the other going slow for MEGA skimming Pie Quote Link to comment Share on other sites More sharing options...
RnB Posted July 12, 2005 Report Share Posted July 12, 2005 2nd skimmer = a very tall, piece of PVC pipe with some flow from your tank (small flow rate) big airstones...... 8) Quote Link to comment Share on other sites More sharing options...
reef Posted July 12, 2005 Report Share Posted July 12, 2005 Maybe R&B can share his design as he was building one 8 months ago, Where are the pics?? Quote Link to comment Share on other sites More sharing options...
RnB Posted July 13, 2005 Report Share Posted July 13, 2005 I'll show you mine.... if you tell me whats in "Reef Solutions" apart from the "minerals and trace elements" phrase.... Quote Link to comment Share on other sites More sharing options...
SteveA Posted July 13, 2005 Report Share Posted July 13, 2005 SteveA - Note your 2 carpet anemones are doing great. The Blue one was looking very touch and go for a while (the one that stung and stuck to you when you brought it around), but its recovered and both are doing great. Pie Not eaten any fish then? I have had the blue one for about 8 years and it has been thru the wars before, having once gone over an overflow weir and got stuck in the output pipe. It was a bit of a mess after that excursion as well. I'll probably use that one for my clown tank, when I set it up. It may not be as bright as the geen one, but it has a history. Quote Link to comment Share on other sites More sharing options...
reef Posted July 13, 2005 Report Share Posted July 13, 2005 I'll show you mine.... if you tell me whats in "Reef Solutions" In contains zeovit and natural seawater, my tank has never looked better. Quote Link to comment Share on other sites More sharing options...
RnB Posted July 13, 2005 Report Share Posted July 13, 2005 that I appreciated! Quote Link to comment Share on other sites More sharing options...
Ira Posted July 13, 2005 Report Share Posted July 13, 2005 2nd skimmer = a very tall, piece of PVC pipe with some flow from your tank (small flow rate) big airstones...... 8) That's not a bad idea. Just a cheap DIY air driven counter current skimmer like 6 feet tall or something to skim out the long contact time proteins while the other one skims out the shorter contact time ones. Quote Link to comment Share on other sites More sharing options...
AW Posted July 13, 2005 Report Share Posted July 13, 2005 With 5000 lph coming out of the deltec, maybe you can plumb a dowdraught in line Quote Link to comment Share on other sites More sharing options...
jetskisteve Posted July 13, 2005 Report Share Posted July 13, 2005 Maybe you could run an Aquamedic Turboflotor twin!!! rated for 5000L Reefs been trying to source some Quote Link to comment Share on other sites More sharing options...
reef Posted July 13, 2005 Report Share Posted July 13, 2005 Aquamedic Turboflotor twin!!! rated for 5000L Be lucky to do 2000L tank air intake is very low and bubble size is very large. Reefs been trying to source some ?? i am not looking to downgrade my skimmer yet. Quote Link to comment Share on other sites More sharing options...
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