overflow question

[Myka]

Herbie will generally give you a bit more flow ability, but may be noisey since there will probably be some water overflowing into the emergency drain if you run it full out.

Originally Posted by Canuckgod420

The pump is not your run of the mill sump pump.....I work at Andrew Sheret and its a replacement jacuzzi tub pump, made by pentair, I called there customer service and they said the pump is fine for this purpous.

What question did you ask Andrew Sheret that they said the pump would be suitable? As others have pointed out, I'm worried about seals, and it leaking residues, oils or greases into your reef. Did you specifically ask them if the pump is designed for continual use, and if it's suitable for saltwater?

The pump should still have a GPH rating, if you don't know it a Google search on the brand and model number/name might come up with an answer. A quick Google search came up with a 1/3 HP Jacuzzi pump and it does 1100 GPH at 0' head.

http://www.poolsupplies.com/cgi-bin/...676_a_7c561825

Your tank should have 215-430 GPH (3-6x turnover). Depending on the size of your sump, and frag tank you could make it work. If you dialed the pump back 25% (I wouldn't do more than that) it would run at 825 GPH which would be suitable for a total system volume of 140-275 gallons (3-6x turnover). PROVIDED you pump is actually 1100 GPH. That's not taking 5' of head pressure into consideration either though. Considering jacuzzi pumps aren't designed for much head pressure, I wouldn't be surprised if it lost 25% in 5' of head, so you could merely have 825 GPH at 5' head before dialling it back.

As a (barely) educated guess the pump is probably not overly large for the tank, but draws SOOO much wattage that it would not even be considerable (for any price) IMO.