which sequence pump should I get?

[PAUL327]

I looking at a snapper that has something like 2400 gph. I noticed a wahoo uno pump that has 1550 gpg but it is much more expensive. Does anyone know why thw wahoo uno is more expensive with less gph? I plan on putting this on a 155 with a 29 gallon fuge and a 40 gallon sump? which pump is the best? I plan on having 5 returns.

 

[PAUL327]

anyone?

 

[mg426]

Are you going to use a Sequence pump as a return Pump??

 

[jtarmitage]

The Snapper is not pressure rated, whereas the Wahoo is. I use 2 Snappers to rund 2 closed loops, as well as a Snapper for the return pump. I use a Wahoo to power my skimmer. There is also a very noticable size difference!!!

 

[PAUL327]

I was looking at using a snapper just for my returns, which i plan on having two in the overflow chambers and three in the center near the top. Do you think the snapper will do it or will I need the dart?

 

[oct2274]

you only want 3-5x through your sump. I would say eheim 1262 for your return. Quiet, low wattage and heat, ultra reliable, and can be run interal or external.

 

[RichConley]

<a href=showthread.php?s=&postid=10007320#post10007320 target=_blank>Originally posted</a> by oct2274
you only want 3-5x through your sump. I would say eheim 1262 for your return. Quiet, low wattage and heat, ultra reliable, and can be run interal or external.

FWIW, a 1262 will add way more heat to a tank than a snapper will. The 1262 is water cooled, the snapper is aircooled.

 

[jtarmitage]

I prefer the snapper, as the flow from the dart is too much to be used as a return pump IMO. The UNO pumps are only needed to power things like becket skimmers, or other high head situations. They are all very quiet, and as RichConley suggested, they don't add heat to the system, though I doubt that the 1262 would add much heat either. I prefer a bit higher flow through the sump, but moderate flow through a fuge, so it depends on how your system is set up. If you run 5 returns from a 1262 though, you won't get any noticable flow from that many returns.

 

[RichConley]

an eheim 1262 will add 80w of heat. Its water cooled, so all of its input will eventually be converted to heat in your tank.

A snapper uses 97w, and is fan cooled, so only a small percentage of that gets to your tank.

 

[PAUL327]

I like the snapper but is it powerful enough to be used a return pump with 5-6 return nozzles near the surface of a 155 gallon?

 

[seattlerob]

<a href=showthread.php?s=&postid=10007869#post10007869 target=_blank>Originally posted</a> by RichConley
an eheim 1262 will add 80w of heat. Its water cooled, so all of its input will eventually be converted to heat in your tank.

A snapper uses 97w, and is fan cooled, so only a small percentage of that gets to your tank.

Technically, if all of its input is converted to heat, it would be a heater, not a pump.

A majority of the input goes to turning the impeller. Certainly some heat by-product, but just can't be all of its input.

 

[jtarmitage]

Paul, the real question is how much flow your overflow and drain lines can support. If you put too large of a return pump on, it will drain the sump faster than it fills, requiring you to throttle it back via a ball valve. Figure out what your system can handle, then use the appropriate pump. I would go with the snapper for the return, and if you need more flow in the tank, which is very likely, then you will need either a closed loop or powerheads.

 

[PAUL327]

sounds real good jtarmitage snapper it is

 

[Ten33]

I agree with oct2274, be careful with that high turnover rate in small sump, unless you like the sandstorm effect 2400 GPH for a 155 just seems high to me...It will make your overflows sound like Niagra Falls. If you are also using a skimmer, sump water contact time will be minimal...it may actually make the skimmer less efficient acccording to some who have far exceeded the 3-5x turnover rate.

 

[PAUL327]

You might be right ten33 but many LFS have told me to use 2400 gph or larger and dont forget i can adjust the flow of the snapper and push the gph way down and the watts to avoid overheating.

 

[Ten33]

My only question is...Why buy such a large pump and have to throttle it down? Isn't that just a waste of performance? How many gallons is your sump?