Adding a second pump to closed loop

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savannah_az

Plecostomus
MFK Member
Jun 14, 2010
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So right now I'm running two inlets to four outlets and I'd like to add a second pump. My question is do I need to separate each intake to one pump and split the outputs two per pump or can I just add a t valve off the intake and add a t valve to the output so it all runs on the same piping?
 
what are you trying to achieve, more flow? I'd say it also depends how you have the PVC plumbed and and space.

Are you thinking of chaining the pumps? just not clear on where you are adding the valve.
 
Personally I would split them. My personal experience with any kind of pump is that teeing them together is only good in a break down situation where one can be completely closed off one to repair while the other one is running. If you try to tee them together you will always have one pump starving the other for flow
 
That's where I was going but wanted to confirm if I was understanding correctly. If so, I agree with Miller.

Then again, maybe a stronger single pump would suffice. But I like treating as two closed loop systems best.
 
I wasn't thinking of chaining them together, I was just going to tee off the intake valve about halfway thru the pvc line, so they would share an intake and then they would hook back up right before where they flow back into the tank. And the purpose is yes to get a bit more flow. Right now I'm running a wave line 10000ii and it runs thru two nuclear canisters. It does move the water sufficiently but it's just a thought I was tinkering with because... Well.... That's what we all do right? Tinker.
 
If I was to change the design I would go with 2 seperate closed loop systems and add 2 more canisters or seperate so there is one canister per closed loop make cleaning alot easier and no need to shut down the hole system. Even the way you are thinking will starve a pump, I wouldn't have believed it if I had not seen it with my own eyes
 
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