Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! - Page 24

tbittner · 05-19-2008, 10:40 PM

If you unplug the pumps, do they lose prime though?

JWarren · 05-19-2008, 10:43 PM

Read page 15. It's not your pump but it happens on all centrifical pumps.

http://www.gouldspumps.com/download_...CareManual.pdf

Varga · 05-19-2008, 10:57 PM

Quote:

Originally Posted by tbittner

If you unplug the pumps, do they lose prime though?

oh yeah, takes me like 2 seconds to prime it though. maybe it wont lose prime once the smp is full and the suction pipe is 19" submerged?

John, Im not understanding page 15. sounds like its talking about preventing air from getting in the suction pipe.

JWarren · 05-19-2008, 11:03 PM

OOOPs wrong document. I'll have to dig it up for ya when I get back to the house.

Anyway it was what Steve was talking about, cavitation and the reduction of flow.

tbittner · 05-19-2008, 11:07 PM

ReefFlo, in their documentation for their Sequence pumps, shows how to plumb pumps so they pull the water up to them. They show a check valve, underwater, to prevent the pump from losing prime. Just something to try I guess.

Varga · 05-19-2008, 11:17 PM

I dont mind them losing prime, these are 24/7 pumps.

so are you saying theres a difference here because these pumps have less sucktion than push power?

Craig Manoukian · 05-19-2008, 11:22 PM

Awesome progress once again Varga!

Triggerjay · 05-19-2008, 11:29 PM

Quote:

Originally Posted by Varga

I dont mind them losing prime, these are 24/7 pumps.

24/7 until you have a power outage, and when the power comes back on, and the pumps come back on... when you are not home...

Jason

JWarren · 05-19-2008, 11:59 PM

Quote:

Originally Posted by Varga

I dont mind them losing prime, these are 24/7 pumps.

so are you saying theres a difference here because these pumps have less sucktion than push power?

There is a big difference. Less work for your pump in fig. 1 of your drawing plus you will not loose your prime.

fig. 2 Is a pump working harder than it has to. You will burn more electricity working the pumps this way as well. You will loose your prime when the power gose out and when the power returns may burn up your pumps. I'd hate to read about that.

Varga · 05-20-2008, 12:13 AM

Man, I have to make some changes then. thank you

before I take em off the wall, I'm gonna look into what terry said about the check valve.

JWarren · 05-20-2008, 12:16 AM

Check valve will keep the prime, but your pumps will still be overworking. Plus check valves will just add to the work.

It's up to you.

Varga · 05-20-2008, 12:18 AM

I know......I'm sure I'll end up moving them

Scouter Steve · 05-20-2008, 07:36 AM

Can you test the pumps like you have it and then switch it and let us know. Maybe all us naysayers are wrong. Would need to know electric draw and gph to be fair. I saw your pic showing it working but still wonder at what cost. Also the power outage would scare me if it can't reprime without help.

Frankie · 05-20-2008, 07:39 AM

In figure #1, if sump is brought up to the level of the tank and the pump stays low in the loop you should not have back flow either way and keep the prime at all times.

JoJo · 05-20-2008, 07:51 AM

i agree with the majority Varga, every manual i've read says the pumps shoudnt pull water up from a source because it can cause cavitation in the pump which would cause premature wear on the pump. the pump has to be fed water because they are designed to push water not pull.

05-19-2008, 10:40 PM	#346 (permalink)
tbittner Watch this Ma! Join Date: Jun 2007 Location: Northern VA Posts: 5,562 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! If you unplug the pumps, do they lose prime though? __________________ Terry 150g predator tank full of killers. Soon to be upgraded to a 360g. 450g reef 300g sump.

05-19-2008, 10:43 PM	#347 (permalink)
JWarren Reef Lobster Join Date: Jan 2008 Location: Port Saint Lucie, Florida Posts: 1,425 View Gallery Karma Komment	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! Read page 15. It's not your pump but it happens on all centrifical pumps. http://www.gouldspumps.com/download_...CareManual.pdf __________________ John Typhoon RO/DI filter unit. My Saltwater web site. Help build ReefPedia!

05-19-2008, 11:03 PM	#349 (permalink)
JWarren Reef Lobster Join Date: Jan 2008 Location: Port Saint Lucie, Florida Posts: 1,425 View Gallery Karma Komment	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! OOOPs wrong document. I'll have to dig it up for ya when I get back to the house. Anyway it was what Steve was talking about, cavitation and the reduction of flow. __________________ John Typhoon RO/DI filter unit. My Saltwater web site. Help build ReefPedia!

05-19-2008, 11:07 PM	#350 (permalink)
tbittner Watch this Ma! Join Date: Jun 2007 Location: Northern VA Posts: 5,562 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! ReefFlo, in their documentation for their Sequence pumps, shows how to plumb pumps so they pull the water up to them. They show a check valve, underwater, to prevent the pump from losing prime. Just something to try I guess. __________________ Terry 150g predator tank full of killers. Soon to be upgraded to a 360g. 450g reef 300g sump.

05-19-2008, 11:22 PM	#352 (permalink)
Craig Manoukian Regular Guy Moderator Join Date: Nov 2003 Location: Marina Del Ray, CA Posts: 18,232 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! Awesome progress once again Varga! __________________ Currently tankless. 20 Gallon mini reef with mated pair of Maroon Clowns given to Rougiem! 80 gallon reef given to Rougiem/Wooster HS.

05-20-2008, 12:13 AM	#355 (permalink)
Varga Golden Moray Join Date: Dec 2007 Location: Seattle, WA Posts: 2,205 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! Man, I have to make some changes then. thank you before I take em off the wall, I'm gonna look into what terry said about the check valve. __________________ Visit my 300g Build http://www.reefsanctuary.com/forums/...all-build.html

05-20-2008, 12:16 AM	#356 (permalink)
JWarren Reef Lobster Join Date: Jan 2008 Location: Port Saint Lucie, Florida Posts: 1,425 View Gallery Karma Komment	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! Check valve will keep the prime, but your pumps will still be overworking. Plus check valves will just add to the work. It's up to you. __________________ John Typhoon RO/DI filter unit. My Saltwater web site. Help build ReefPedia!

05-20-2008, 12:18 AM	#357 (permalink)
Varga Golden Moray Join Date: Dec 2007 Location: Seattle, WA Posts: 2,205 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! I know......I'm sure I'll end up moving them __________________ Visit my 300g Build http://www.reefsanctuary.com/forums/...all-build.html

05-20-2008, 07:36 AM	#358 (permalink)
Scouter Steve Neon dottyback Join Date: May 2006 Location: Somers Wisconsin (Kenosha County) Posts: 683 View Gallery Karma Komment	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! Can you test the pumps like you have it and then switch it and let us know. Maybe all us naysayers are wrong. Would need to know electric draw and gph to be fair. I saw your pic showing it working but still wonder at what cost. Also the power outage would scare me if it can't reprime without help.

05-20-2008, 07:39 AM	#359 (permalink)
Frankie Angel Girl's Daddy Join Date: Feb 2004 Location: The End Of The World Posts: 8,052 View Gallery Karma Komment Add yours!	Re: Varga's 300 Gallon In-Wall Build!!!!!!!!!!!! In figure #1, if sump is brought up to the level of the tank and the pump stays low in the loop you should not have back flow either way and keep the prime at all times. __________________ Click here to visit my thread: New Horizons Text Is a Poor Form Of Communication! If we ignore the environment maybe it will just go away....

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