what closed loop to install?

[tangs rule]

If your 5 outlet jets are smaller than 5/8 inch then the 'cuda would do it - but if your jets are bigger than 5/8 - the manta ray will maintain better flows/pressures. Just remember you'll have to keep the outlet tubing line BIG - like 1.5" all the way to the last jet. If you reduce it to 1" pvc too early in the chain, your jets will loose alot of flow/pressure as the reduction to a 1" line will cause massive restriction and reduce flow/pressure at the jets downstream.
Another thing to consider is total head - since the return pump is 14.6' away from the 1st outlet - how much of this is vertical? ? what's the height from the pump to the outlets?

 

[acrylic51]

Ok hopefully I'm following along correctly. Are you saying that you have 14'.6" of horizontal pipe run from the pump to the DT? If that's the case 10' of horizontal pipe run is comparable to 1' of vertical/head pressure......

 

[dirk_brijs]

ok here same drawing as before but only return pipe with measurments on it so you have a better idea.
the entire line would be 1,5" untill the last corner it changes to 1" and all outlets will have 1" rotating flow accelerators connected to it.
So as you can see there will be not only horizontal movement but there will be a 5.1Feet vertical line leading to the top of the tank.
The entire out line would have a total of 4 90degree turns and encounter 2 ball valves.

 

[acrylic51]

Ok......Makes more sense now.....still not tons of head.....just the vertical of 5' and horizontal total run of roughly 16' equals roughly 7' so far. I still think the Manta Ray is way overkill for the application......I again suggest before you sink money into the pump to call Reeflo directly. They are super and they could honestly give you the best option for your scenario.......

 

[dirk_brijs]

Quote:
Originally Posted by acrylic51 http:///t/387744/what-closed-loop-to-install/20#post_3420231
Ok......Makes more sense now.....still not tons of head.....just the vertical of 5' and horizontal total run of roughly 16' equals roughly 7' so far. I still think the Manta Ray is way overkill for the application......I again suggest before you sink money into the pump to call Reeflo directly. They are super and they could honestly give you the best option for your scenario.......
Problem is I am currently working on my ship in the middle of the Pacific Ocean so hard for me to call anyone.
reason why I am asking here for some proffesional advise.
As you mentioned 7' and with the corners and valves in between I presume I would actualy get closer to a 10' head right? So it looks like I have to go high pressure pumps or not?
What other pump would do? High presure pumps from reeflo are about the same price as the Barracuda anyway right?

 

[acrylic51]

Seems your on the right track.....Price wise they are comparable, but electrical draw there is a huge difference between the pumps......That's what I question.

 

[tangs rule]

Quote:
Originally Posted by dirk_brijs http:///t/387744/what-closed-loop-to-install/20#post_3420263
Problem is I am currently working on my ship in the middle of the Pacific Ocean so hard for me to call anyone.
reason why I am asking here for some proffesional advise.
As you mentioned 7' and with the corners and valves in between I presume I would actualy get closer to a 10' head right? So it looks like I have to go high pressure pumps or not?
What other pump would do? High presure pumps from reeflo are about the same price as the Barracuda anyway right?
the diff in price between a cuda and mantis is negligable. It's the outputs between the 2...the cuda= 4300 gph and mantis = 5k plus....It's still gonna run you 600 - 800 watts per hour, 24/7 to run either - so assume that in your claculations.....however - when you get above 2000gph - the reef-flo pumps are excellent - as mag drive pumps equal in performance put ALLOT of heat into the water& get very pricey.,, My reeflows run 24/7 and their heat xfer is negligable. I think the mantis on the high end/cuda on the low end is your aim..just don't short change the pump power by restricting the intake/outflow too much - - keep your pipes big and either pump will do ffine. Wattage per hour is just something you gotta deal with in a large DT

 

[dirk_brijs]

Quote:
Originally Posted by tangs rule http:///t/387744/what-closed-loop-to-install/20#post_3420313
the diff in price between a cuda and mantis is negligable. It's the outputs between the 2...the cuda= 4300 gph and mantis = 5k plus....It's still gonna run you 600 - 800 watts per hour, 24/7 to run either - so assume that in your claculations.....however - when you get above 2000gph - the reef-flo pumps are excellent - as mag drive pumps equal in performance put ALLOT of heat into the water& get very pricey.,, My reeflows run 24/7 and their heat xfer is negligable. I think the mantis on the high end/cuda on the low end is your aim..just don't short change the pump power by restricting the intake/outflow too much - - keep your pipes big and either pump will do ffine. Wattage per hour is just something you gotta deal with in a large DT
So your telling me with this setup the Barracuda would do as good or just a bit less as the Manta Ray? But as the manta Ray is set at 750W and the Barracuda at 325W I think?? The choice should be Barracuda right?

 

[acrylic51]

Bottom line wattage draw/usage is a "big" key IMO when it comes to larger setups.....By no means do you need a 5k plus return pump......

 

[tangs rule]

Well - I run a cuda with a 1.5" inlet and dual 1" outlets....in that application the cuda has plenty of push....3' head....
In your concept, your wanting to run 5 outlets, probably 1/2 to 3/4 each and to get the desired flow from that many, your looking at 5k gph - remember all these big pumps will run just fine, when throttled down via a ball valve by up to 50% - so in your case, I'd error on the side of more pump...rather than less. I imagine if I ran my cuda with 5 outlets - it'd get kinda weak.....but with 2 1" ones - it does fine. The buy in cost of either is about the same, the overall useage cost (cost to run) is higher with the mantis - but if you keep your inlet big, and your 5 outlets fed off a 1.5" line - then you can run a mantis - and throttle it back some if needed.....with a cuda on 5 outlets, it'd run wide open with nothing more to give. I'd rather run a larger pump than needed and throttle it back some than run one wide open.
Long story short - I'd run the larger pump (maintis) than smaller (cuda). With your output desires, the cuda would be runnin wide open, and a mantis could give you more margin with a ball valve.,,,power usage is just dependant on equipment - and the bigger the tank, the more wattts it's gonna eat. Welcome to the big tank klub.

 

[dirk_brijs]

Its not that I dont want to spend the Wattage its just if not needed I dont see the point of going over? cause even turning back the mantis down it would be plenty more usage then the 350W Barracuda right?
But I was maybe of the same idea that 5 outlets would disable the Barracuda too much (what you think acrylic?)?
All 5 outlets would have 1" rotating flow accelerators connected though so they might help get the disadvantage flow of the barracuda back up a bit as they (I am sure exagerated) accelerate the flow by 400% hahaha.

 

[dirk_brijs]

would there be any other pumps you guys would recommend or would Reeflo be the best option?

 

[acrylic51]

For this application Reeflo all the way.