|
|
|
|
|
#1
08-16-2010, 07:40 PM
|
|||||
|
|||||
One pump is a Reeflo Dart for sump return, the other would be a GenX/Mak4 (assuming it still works, it should, it's just been shelved a few years), which would drive the skimmer (beckett). The GenX should be better able to push against head pressure and wouldn't be throttled; the Dart will likely be throttled but I'm not sure how much will be needed until I fill the tank and see how things settle out.
The Dart has a 2" inlet port and the bulkhead is 2". The GenX on the other hand has a 3/4" inlet port. My worry is that one pump's suction could be perceived by the other pump much the same as a blockage or throttling on the input side. I know that throttling the outlet side of a pump is copesetic (it's just head pressure); but that throttling the inlet side of a pump is a no-no  so was sort of curious if two pumps pulling out the same pipe could produce a similar effect, or if it just creates a wicked suction into said pipe via the bulkhead...Thanks for the thoughts..
__________________
-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee! 
|
|
#2
08-16-2010, 11:47 PM
|
|||||
|
|||||
|
I would say try it but I doubt it will work good, but it could.
hows that for an answer  my concern is the size of the inlett of the dart. at 2" it will suck a lot of water but it all depends on the suction head pressure. if there is enough to supply the dart with lots left over then ya it will work, if not you will get cavatation in one of the pumps. best way to do it would be to have a large bulkhead, say 3" and have it go into a 3" pipe with a "T" on the end to feed the pumps. this will allow more water lower and creat a resivoir which is feed by a large bulkhead under a higher suction head. Steve
__________________
 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
|
|
#3
08-17-2010, 12:15 AM
|
|||||
|
|||||
|
Sounds good, thanks. It seems to me "it could probably work" also means "it could probably not work" and if there's a chance I have to drill out a new bulkhead anyhow, I might as well do it now when the tank is empty rather than down the road. I suppose that leaves more options open anyhow. Worst case scenario I end up not needing the bulkhead (ie., move to an insump skimmer) but then I can just cap it off, or use it for water changes or something.
__________________
-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
|
|
#4
08-17-2010, 12:20 AM
|
||||
|
||||
|
Darts can be fed with 1 1/2 bulkheads on closed loops easily because of the head pressure available, drawing from a sump however is slightly different, the higher the sump level and the greater the surface area will help in making this work fine.
I would go for it.
|
|
#5
08-17-2010, 03:12 PM
|
|||||
|
|||||
|
Quote:
Steve
__________________
*everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
|
|
#6
08-17-2010, 03:09 PM
|
|||||
|
|||||
|
Quote:
Steve
__________________
*everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
|
Hybrid Mode
