Geo Skimmer size?
- Thread starter tye_c
- Start date
sammie
New member
Has anyone taken a needlewheel skimmer be it Euro-reef, Geo or whatever that has the needlewheel on the pump moving water through the skimmer, alas a standard euro-reef, and added a second pump with a needlewheel to the body to perform recirculation function such as a sedra 5000 or equal? This would need to be a larger skimmer to begin with but you could get more turbulance and air in the body of the skimmer and possible increase performance.
Anyone try this???
Anyone try this???
TacoKing
New member
I've done just that.. I had an old style GEO skimmer with a single Sedra 9000. I added a second Sedra 9000 to the skimmer in a recirc mod. Pretty easy to do. Just cut a few holes in the tube, added some uniseals and plumbed it righ on in. It seems to work better, but i'm not sure how much better.
-Rob
-Rob
seandanekind
Active member
Hey Hollback-
Just curious... What's your calculation for that?
I had done a similar spreadsheet a while back, but figured GPH thru the skimmer at about 75% of system volume per hour. That yeilds a skimmer size about 2.5% the volume of the system to get a 2 minute dwell time.
I tried basing my spreadsheet on Escobal's book, but I haven't seen a copy of it in about 2 years...
My reacton chamber heights are coming out about 15% shorter than yours.
If I use 87.5% flow thru the skimmer instead of 75%, my numbers are spot on to yours...
Just curious... What's your calculation for that?
I had done a similar spreadsheet a while back, but figured GPH thru the skimmer at about 75% of system volume per hour. That yeilds a skimmer size about 2.5% the volume of the system to get a 2 minute dwell time.
I tried basing my spreadsheet on Escobal's book, but I haven't seen a copy of it in about 2 years...
My reacton chamber heights are coming out about 15% shorter than yours.
If I use 87.5% flow thru the skimmer instead of 75%, my numbers are spot on to yours...
seandanekind
Active member
if I remember Escobal's equations... if you pump the whole system volume thru it every hour, it takes about 12 hours before 99% of the water molecules have statistically gone thru the skimmer - or something like that.
Granted, that's his ideal... many of the newer skimmers run more flow and well less than a 2 min dwell time very effectively with much smaller bubbles than were common when that book was published...
I dunno - I'm the light geek, not the skimmer geek...
Granted, that's his ideal... many of the newer skimmers run more flow and well less than a 2 min dwell time very effectively with much smaller bubbles than were common when that book was published...
I dunno - I'm the light geek, not the skimmer geek...
tye_c
Premium Member
http://www.geosreef.com/nw_818.html
He only has one size listed. Dan doesn't have any listed and Sedar only has one.
http://www.saltycritter.com/protein-skimmers/geo-protein-skimmers.htm
http://www.phishybusiness.com/skimmers.php
He only has one size listed. Dan doesn't have any listed and Sedar only has one.
http://www.saltycritter.com/protein-skimmers/geo-protein-skimmers.htm
http://www.phishybusiness.com/skimmers.php
Phishy
.Registered Member
tye_c
This link has some info on them. Shoot me a pm if you need more info on them.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=943436
Serdar
This link has some info on them. Shoot me a pm if you need more info on them.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=943436
Serdar
