DC Pump Failure Again

[docvin]

Just wondering if anyone is familiar with this? I have gone through 2 DC pumps in 8 months. I won’t mention the brand. I have high head pressure due to the length of hosing needed to zig zag it’s way back to the tank. When I used the old AC pumps they lasted 5 or 6 years and the pipe route hasn’t changed in 18 years. Wondering if old school is the way to go?

 

[RamsReef]

Well there is no reason to go dc if your flow rate from ac is what you want, like the ac output is matched to your drain.

More things to fail dc vs ac. Not only can your pump fail, bearings, shaft, etc, controller can fail to, ac/dc psu, etc.

 

[TaylorPilot]

Short answer...yes....

Long answer...why do you need an adjustable pump as your return. Just buy the proper size pump for your application. If you do need to restrict it for some reason, use a ball valve. Less stuff to break, cheaper, more reliable...When you calculate for real headloss, they really aren't much different as far as performance goes.

 

[docvin]

Well there is no reason to go dc if your flow rate from ac is what you want, like the ac output is matched to your drain.

More things to fail dc vs ac. Not only can your pump fail, bearings, shaft, etc, controller can fail to, ac/dc psu, etc.

The only reason I went with a DC pump was because I could be notified through the APEX if something went wrong with it.

 

[RamsReef]

Ohh you're using the apex pump?

Technically you can use both power monitoring and flow monitoring on the new apex to give you alerts.

 

[saltyfilmfolks]

One sucess I’ve always had with dc anything is to use a power supply much larger than what Is generally supplied.

 

[T-5unsystem]

Sounds like you should be buying pumps with a warranty

 

[jda]

Not to be flip, but everybody knows that DC pumps are short lived in high head situations unless you get some of the really nice ones, which would have long warranties.

BTW - you should mention the brand so that people can use this for reference and maybe avoid the same issues that you had.

 

[docvin]

Sounds like you should be buying pumps with a warranty

They are under warranty. The company replaces them every time.

 

[docvin]

Not to be flip, but everybody knows that DC pumps are short lived in high head situations unless you get some of the really nice ones, which would have long warranties.

BTW - you should mention the brand so that people can use this for reference and maybe avoid the same issues that you had.

I didn’t want to mention the company just in case this is a problem will all DC pumps in general. Which looks like the problem according to what you said. Just not fair to single one out.

 

[docvin]

Ohh you're using the apex pump?

Technically you can use both power monitoring and flow monitoring on the new apex to give you alerts.

I bought the flow monitor after the first pump failed. Then the flow monitor gets gummed up and fails if I don’t take it apart and clean the wheel inside every 2 to 3 months. I can’t win. The more things I add to make life easier the more maintenance there is.

 

[ca1ore]

Not all DC pumps are made equally; quality will correlate highly with longevity. Spend $150 on a Jebao and it’s likely to fail before a $350 Vectra which is likely to fail before a $1,50o Abyzz ..... and so on. If you are using a flow monitor, then you don’t need a DC pump to alert you to failure. Vast majority of the DC pumps aren’t designed for significant back pressure. Many. Though not all, AC pumps are.

FWIW, the flow sensors are quite susceptible to fouling - just use a screen on the intake of the pump.

 

[RamsReef]

I just ise Ac pump and let her rip

Ill hear my overflow gargle if its output gets reduced.

I plan on pucking up sevond spare.

I can have 2 nice ac pumps for the price of one dc. Oh and I can pump 14 feet upstairs

 

[docvin]

I just ise Ac pump and let her rip

Ill hear my overflow gargle if its output gets reduced.

I plan on pucking up sevond spare.

I can have 2 nice ac pumps for the price of one dc. Oh and I can pump 14 feet upstairs

That’s what I used to too but I really liked the idea of having a battery to power a pump if the electric went out.

 

[RamsReef]

That’s what I used to too but I really liked the idea of having a battery to power a pump if the electric went out.

UPS

 

[RamsReef]

I get it thpguh for sure