Are Closed Loop Systems Obsolete - Page 2

der_wille_zur_macht · 06/29/2017, 02:56 PM

I bought a wet end from Reeflo directly and put it on a 3 phase Baldor motor I got on ebay. I said 1/2 hp above but now that I think for a minute it may have been 3/4. The vfd was a Teco FM50. Total cost was maybe $350 and I had a controllable closed loop that was strong enough that it would put a firehose to shame. The FM50 takes 120vac single phase input so you can run it off your normal home wiring. It's worth noting that the motor was fairly loud, but hell, you kind of have to expect that with this kind of power. The whole thing was plumbed through 2" pvc.

I actually still have the whole rig. I tried to sell it when I tore the tank down but there was no interest. Unfortunately it ended up in a bin in my damp basement so I don't know if it works anymore.

jerseyboy · 01/30/2020, 02:35 PM

personally i hate looking at circulation pumps. im doing closed loop in my new 220 build s
and i can hide the nozzles

biecacka · 01/31/2020, 09:27 AM

I agree jerseyboy. If I had a bigger tank I would go closed loop for sure...

Corey

Dmorty217 · 02/01/2020, 02:15 PM

Closed loops really come in handy with large tanks when trying to move water the entire length of said tank. Personally I think every tank over 4-500g should have at least one closed loop

06/29/2017, 02:56 PM	#26
der_wille_zur_macht Team RC Member Join Date: Sep 2003 Location: NY Posts: 17,749	I bought a wet end from Reeflo directly and put it on a 3 phase Baldor motor I got on ebay. I said 1/2 hp above but now that I think for a minute it may have been 3/4. The vfd was a Teco FM50. Total cost was maybe $350 and I had a controllable closed loop that was strong enough that it would put a firehose to shame. The FM50 takes 120vac single phase input so you can run it off your normal home wiring. It's worth noting that the motor was fairly loud, but hell, you kind of have to expect that with this kind of power. The whole thing was plumbed through 2" pvc. I actually still have the whole rig. I tried to sell it when I tore the tank down but there was no interest. Unfortunately it ended up in a bin in my damp basement so I don't know if it works anymore. __________________ Inconveniencing marine life since 1992 "It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman)

02/01/2020, 02:15 PM	#29
Dmorty217 Saltwater Addict Join Date: Jan 2012 Location: Vandalia OHIO Posts: 11,624	Closed loops really come in handy with large tanks when trying to move water the entire length of said tank. Personally I think every tank over 4-500g should have at least one closed loop __________________ Fish are not disposable commodities, but a worthwhile investment that can be maintained and enjoyed for many years, providing one is willing to take the time to understand their requirements and needs Current Tank Info: 625g, 220g sump, RD3 230w, Vectra L1 on a closed loop, 3 MP60s, MP40. Several QTs

01/30/2020, 02:35 PM	#27
jerseyboy Registered Member Join Date: Aug 2014 Posts: 53	personally i hate looking at circulation pumps. im doing closed loop in my new 220 build s and i can hide the nozzles

01/31/2020, 09:27 AM	#28
biecacka Registered Member Join Date: May 2008 Location: Columbus Ohio Posts: 6,361	I agree jerseyboy. If I had a bigger tank I would go closed loop for sure... Corey