Return Pump Suggestions

[Funky_Fish14]

Yeesh, that is going to be a beastly skimmer!

Im keeping SPS and LPS. I want more than 31x per hour turnover rate because I find the current is fairly light in the tank right now(75g). Would anyone know if its possible to dial back the flow on the blue-line with a ball/gate valve or something else? I really like what I've seen about the pump and would love to be able to use one. Dialing back the 800gph pump just a tad(100gph, minus head pressure that would already be there) would be perfect.

Thanks!

Chris

[TheReefGeek]

Dialing back a pump 100gph will be fine. Remember to add up your head pressure (include turns, linear length, and vertical height)

Strange the bubble kings are so fat compared to other skimmers, I wonder how this affects performance I always though taller was preferable so you get more bubble dwell time. What is the needlewheel pump gph the bk 500 runs off of?

[Funky_Fish14]

It looks like the BK's have a larger rectangular chamber underneath which allows them to have bubbles stay in the water longer, then it looks like theres some sort of bubble realease thing in the main chamber?

Well, the head pressure might bring it down to 700gph anyways, so that would still work.

I decided what I would like to do is go with a Blueline 800, with 700 or so gph through the sump, then a mag 5 on a closed loop.

Thanks,

Chris

[albert_dao]

The BK's are fat because of the pump. RD pumps don't handle pressure very well from what I've read and a taller reaction chamber would just cut down on the efficiency of the unit. Being fatter compensates.

[Ruth]

Originally Posted by albert_dao

The BK's are fat because of the pump. RD pumps don't handle pressure very well from what I've read and a taller reaction chamber would just cut down on the efficiency of the unit. Being fatter compensates.

I think there is a little more to it than that. Here is a link to the BK home page from Germany where they are built if you want more information.
http://english.royal-exclusiv.de/index2.htm

[albert_dao]

Hummm, I'm not really pulling more out of that site than what I had initially stated. It's mostly splitting hairs on the forums.

Anyway, there's a thread on RC about a DIY needlewheel Dart that Spazz is working on and there's some pretty detailed info on the workings of BK in there.

[topdown]

are the poseidon pumps the same as the Blueline velocity pumps?

[Funky_Fish14]

Looks like they are!

http://www.jlaquatics.com/phpstore/store_pages/details/pumps.php?product_ID=wp-ps2

I was thinking about going with a velocity... guess I'll stick to the NS and HD series blue-lines.

(Have made changes to original specs/design etc...) thread no longer applicable. Thanks.

Chris