How low to drill 100 gallon sump for Hammerhead pump

[Im Lon 2]

I need to drill my 100gallon sump and need to know how deep the drilled hole should be for a hammerhead pump.. Should be pulling 3000-4000 gph. I don't want it not to be deep enough where it sucks air and causes micro bubbles all over the tank.

 

[capncapo]

I would suggest as low as you can. That's a LOT of flow through a 100g sump!

What are the dimensions?

You might also want to put a T on the inside of the sump to divide the amount of water flowing into the pump. I think I would drill a BUNCH of holes into the T also.

 

[chadscamaro]

Set the pump next to the sump with your shutoff valve an union attached, then push the plumbing up against the sump where you want it. Take a magic marker draw around the plumbing pipe and thats your spot ! Thats how did all mine and just built a riser grate inside to keep debris out . Make sure you mount the pump to something and maybe a thin layer of foam for vibration and do this before you mock it up, so your hole isnt to low to put the wood/foam in after the fact.

 

[Im Lon 2]

it is a rubber maid sump

In this pic I'm going to move the New Saltwater contain to the right side of the sump and put the pump on the left side. I guess what I will do is build a little pallet for the pump to sit on.

When I talked to the people that make the pump they said since it has a 1.5" intake to run a 2" from the tank and down size that to a 1.5" at the pump.

The blue drum will not be there either and the pipe from the pump goes straight up into the floor . So that will give me more room on both sides of the sump.

 

[Im Lon 2]

<a href=showthread.php?s=&postid=8274610#post8274610 target=_blank>Originally posted</a> by chadscamaro
Make sure you mount the pump to something and maybe a thin layer of foam for vibration

How hot does the pump get? I have a piece of 1/2" foam will that work?

 

[mflamb]

Mount the pump to a small piece of plywood and put the foam under the plywood.

 

[chadscamaro]

<a href=showthread.php?s=&postid=8276217#post8276217 target=_blank>Originally posted</a> by Im Lon 2
How hot does the pump get? I have a piece of 1/2" foam will that work?

Yeah that fine or even thinner would work better probably. The pump wont get to hot at all and I just used that thin pink house wrap under my pump then set it on a piece of plywood.