Cobalt 4 stage canister filter

[54seaweed]

May be someone has done what I was thinking or has a clue if this may work or not ..

I have a Cobalt 4 stage canister filter with a external inline pump, it is submerged in the tank like recommended on the intake side ,
I get very little water flow out of the return , at first I thought the hoses were clogged .
my question is this if I added a second inline pump and put it on the return side would this give me a better water flow out of the return with out starving the canister or over work either pump ??

thanks for your input as pumps and plumbing are my weak spot

 

[Delapool]

I'd love to hear from some-one that has made this work. I don't think I've been quite convinced on running two pumps in-line without a break from what I have read.


When we had the hobby farm, we were always told to have a holding tank between pumps but this may have been different pumps or that our pumps were very different flow rates.

 

[54seaweed]

both pumps are going to be identical Cobalt EXT800 inline pump says max flow 210gph I think maybe more like 75 gph as weak as it is
right now the flow coming out of the return is like shooting a water pistol , thin weak stream

 

[54seaweed]

got a second pump fingers crossed it will work , but first I need to add a set of ball valves
to make life easier cleaning out the canister,

 

[Mpwallace1]

Hi an older thread I know, but I’m researching this filter for myself. I like the height and Amazon reviews I read so far. OP where you ever able to nail this down? As a general thought, could the outflow have been improved if it was set up outside the tank as a ‘push’ method back into the aquarium ?Are there any other users out there that have any experience with this device? Thanks for any feedback

 

[54seaweed]

with the one pump alone no it don't push near what it is rated for so I added a second inline pump , so now there's a pump on both the intake and outlet hoses
this improved the water flow greatly improving the overall performance of the canister .
the additional pump cost about $30 a bit over priced Imo .
Only reason I added the second pump was I had one laying around and not having to buy one otherwise I would have invested in a fluval canister

 

[Mpwallace1]

Thanks, so I take that as ‘I can do better with something else’ Glad you finally got it worked out though