Varios DC pump fails?

tom obrecht · 04/24/2018, 04:50 AM

Has anyone had issues with premature fails with Varios DC pumps? I have 2 feeding different tanks as return pumps and it seems they fairly regularly seize up due to the impellar shaft sticking to the bushing that sits in the bottom of the main pump body. I rotate pumps so as not to have down time in case this happens but within the last year this seems to become a fairly regular issue. Happened again last night and once the impellar was removed the bearing was once again locked to the shaft. I cleaned this pump a couple weeks ago...there was no buildup on the rest of the impellar. Is there a trick to keeping these operating more efficiently? Could there be an issue with DC pumps? Never had this issue with AC pumps I ran for close to 15 years prior.

ksed · 04/24/2018, 05:06 PM

Extreme tolerances for greater efficiency.

mcgyvr · 04/24/2018, 06:04 PM

Quote:

Originally Posted by ksed

Extreme tolerances for greater efficiency.

What are you their marketing department

They aren't too efficient when they are seized up..

ksed · 04/24/2018, 06:56 PM

Quote:

Originally Posted by mcgyvr

What are you their marketing department

They aren't too efficient when they are seized up..

Your absolutely correct!
But everyone is after numbers

tom obrecht · 04/26/2018, 07:20 AM

Contacted Coralvue and they feel it is a bearing issue They have sent a replacement. Will see

Cathman · 04/27/2018, 07:21 PM

In the process of sending one back to them now due to the same issue. It was on a reef octo skimmer though.

04/24/2018, 04:50 AM	#1
tom obrecht Registered Member Join Date: Oct 2004 Location: WI Posts: 3,014	Varios DC pump fails? Has anyone had issues with premature fails with Varios DC pumps? I have 2 feeding different tanks as return pumps and it seems they fairly regularly seize up due to the impellar shaft sticking to the bushing that sits in the bottom of the main pump body. I rotate pumps so as not to have down time in case this happens but within the last year this seems to become a fairly regular issue. Happened again last night and once the impellar was removed the bearing was once again locked to the shaft. I cleaned this pump a couple weeks ago...there was no buildup on the rest of the impellar. Is there a trick to keeping these operating more efficiently? Could there be an issue with DC pumps? Never had this issue with AC pumps I ran for close to 15 years prior. __________________ Reef keeping is where Murphy's Law and your bank account collide!! TOTM May 2006

04/26/2018, 07:20 AM	#5
tom obrecht Registered Member Join Date: Oct 2004 Location: WI Posts: 3,014	Contacted Coralvue and they feel it is a bearing issue They have sent a replacement. Will see __________________ Reef keeping is where Murphy's Law and your bank account collide!! TOTM May 2006

04/24/2018, 05:06 PM	#2
ksed Registered Member Join Date: Sep 2007 Posts: 1,867	Extreme tolerances for greater efficiency.

04/27/2018, 07:21 PM	#6
Cathman Super Ninja Reefer Join Date: May 2006 Location: Yep, Texas Posts: 142	In the process of sending one back to them now due to the same issue. It was on a reef octo skimmer though.