closed loop, hammerhead pump question

[saltwatersilly]

I am setting up a 300 gallon acrylic tank. It has already been drilled for a closed loop. It has two 1" bulkheads to drain into the pump and four 3/4" returns.

The question is: I bought a reeflo Hammerhead pump. 5800 gph, w/ 1 1/2 " intake and discharge. If I join the two 1" lines together under the tank to go into a 1 1/2 " line, will that be enough water to keep the pump working properly?

Thanks,

 

[mflamb]

Using pi times radius squared to determine the area of a circle, you will find out that two 1 inch pipes have a total circle area of 1.57 inches, while one 1.5 inch pipe has a total circle area of 1.76 inches, which makes the 2 1 inch pipes inadequate to supply a Hammerhead pump. Your four .75 inch returns will be adequate with a total circle area of 1.81 inches.

I lived in Shoreacres in the early 90's. How did you do with the hurricane?

 

[saltwatersilly]

http://www.cityofshoreacres.us/ike.htm

We just recently built.. so we had barely any water in the house, just enough to have to replace the carpet.. but not baseboards and such.. The garage had 4"s.. lost shed and outside stuff, but all in all did great. Compared to our neighbors..

53 houses destroyed and 402 major damaged and 259 damaged or affected. Check out the link.. it is really very sad. I lost everything in my 150 and 120.... So, I decided to sell them both and just do a 300. Thanks for the info..

 

[mflamb]

I lived on the north east corner of Baywood and Byway. The house faced Baywood and the garage faced Byway. I can't remember the address. I really enjoyed my time there. I did lots of sailing from the HYC while I was there.

Back to the tank. The 1 inch holes will be easy to enlarge to 1.5 inch. Get a 1 inch hole saw and a 1.5 inch hole saw. Put the 1.5 inch saw on the guide bit/holder and then put the 1 inch on. The 1 inch will be longer and will fit into the existing 1 inch hole and act a a guide to get the 1.5 inch hole saw started correctly.