return pump

[Dearth]

Originally Posted by Aquattro

I've always run my return with a restricted output. My current MAG 12 is probably cut by 30%. This pump has been running like that 5+ years.

+1

Running your pump with reduced outflow actually increases the life of your pump considerably

Never ever restrict the flow in as you can cause major damage to the pump and cause the pump to cavitate

[monkE]

same here, i've got a gate valve on my return pump to limit it's flow. With any tank that has a herbie drain in their overflow they need to be able to restrict that return pump to keep the over flow water level in the correct place.

[mseepman]

Originally Posted by monkE

same here, i've got a gate valve on my return pump to limit it's flow. With any tank that has a herbie drain in their overflow they need to be able to restrict that return pump to keep the over flow water level in the correct place.

Really, I've always controlled herbie's through the gate valve on the main siphon...never on the return.

[monkE]

Originally Posted by mseepman

Really, I've always controlled herbie's through the gate valve on the main siphon...never on the return.

this was my first herbie setup so maybe i've done something differently. I had to play with both to get that water level stable. i suppose it would depend on the output power of the pump though.

[tang daddy]

I am running 60% of my quiet one 4000 high head on my 75g and it's never hurt my pump, about 4yrs running.

Like many have said put a valve on it to reduce the flow but make sure you have atleast 2ft after the pump before the valve, also if you have the pump split now you could use it to run other equipment, ie chiller, bio pellets, phosban, a refuge or algae scrubber.... Even use it for WC's.