3 replies to this topic

[stretch5]

Hi all, I recently picked up a basic sump and a 4x2x2.5 foot tank and cabinet.

Plan is to drill the tank and install bulkheads down to the sump. Just trying to figure out what size bulkheads to buy and what size PVC pipe to use to match the flow of my pump.

Tank is 4x2x2.5 foot so around 540L and I have 130L sump. I found this info and they recommend the sump to be around 20% which is 108L so this 130L sump should be enough to not fill completely and not over flow with a power outage.

 

http://www.theaquari..._need_a_sump.3F

 

now to pipe sizing and bulk heads.  I have a 5000L (1320G) and a 3000L (792G) pump..

 

So looking below for 5000L pump do i use the 1.5" (42mm) PVC tubing?

 

Stand pipe Size Gravity Flow Rating ¾" 330 gph 1" 600 gph 1¼" 910 gph 1½" 1300 gph 1¾" 1800 gph 2" 2350 gph 2¼" 2960 gph 2½" 3650 gph 2¾" 4450 gph 3" 5280 gph  

Edited by stretch5, 20 June 2016 - 08:39 AM.

[Chopstick_mike]

I run a 6500lph pump and have 2 42 mm stockman pipes into the sump and 1 X 25mm (I think ) return and that works fine for me on my 7x2x2

[stretch5]

Nice Mike, do you run 2 42mm stockman pipes one for the main drain and the second as a backup?

Where did you you get the bulkheads and the pipe from?

[Chopstick_mike]

Ye only because is was an ex marine tank so tend to get Blocked easier ......prob get away with one in freshwater but always good to have a back up in my opinion.

Got mine from Bunnings and added a little bit of silicone to the bulkheads for piece of mind I recommend for the return to use Flexi pipe to your tank as more elbows equals less flow