Drilled Bulkhead Size for 220 gallon

TankYouVeryMuch · 09/01/2015, 01:47 PM

Hi,

Should I go for 1 1/2 inch or 1 inch for my 220 gallon tank drilling? Doesn't it make quite the difference regarding overall flowrate?

Also, any downside to using schedule 80 PVC vs. standard PVC?

Tanks

Sandnukka15 · 09/01/2015, 03:10 PM

I would go 1.5 thats what i have on my 220 to my sump but thats fresh water

JaimeAdams · 09/02/2015, 09:52 AM

My 220 has 2 inch drains and 1 1/2 returns. We set up a new DD 250 2 weeks ago and it had 1 1/2 drains from the factory. It really comes down to how much water you want to be changing.

W1ngz · 09/02/2015, 10:00 AM

What sort of drain are you building, and what return pump is planned?
On my 75 I have a bean with 1.5in bulkheads. With just a little syncra 3, I have the siphon dialed back to about 75% flow. It wouldn't take a much bigger pump to overcome my drain at max.

A bigger hole can be dialed back with a valve. If it's too small, you could gamble and re-drill bigger, but what a pain that would be.

09/01/2015, 01:47 PM	#1
TankYouVeryMuch Registered Member Join Date: Jul 2015 Posts: 8	Drilled Bulkhead Size for 220 gallon Hi, Should I go for 1 1/2 inch or 1 inch for my 220 gallon tank drilling? Doesn't it make quite the difference regarding overall flowrate? Also, any downside to using schedule 80 PVC vs. standard PVC? Tanks

09/02/2015, 10:00 AM	#4
W1ngz Registered Member Join Date: Aug 2014 Posts: 295	What sort of drain are you building, and what return pump is planned? On my 75 I have a bean with 1.5in bulkheads. With just a little syncra 3, I have the siphon dialed back to about 75% flow. It wouldn't take a much bigger pump to overcome my drain at max. A bigger hole can be dialed back with a valve. If it's too small, you could gamble and re-drill bigger, but what a pain that would be. __________________ 75 Gal., bean animal drain, 80lbs of rock, 1" of crushed coral and aragonite mix and a pair of 850 Koralias. 25 gal. sump, Syncra 3 return, Eshopps PSK-150 skimmer and 2 150W heaters.

09/01/2015, 03:10 PM	#2
Sandnukka15 Registered Member Join Date: Feb 2014 Posts: 152	I would go 1.5 thats what i have on my 220 to my sump but thats fresh water

09/02/2015, 09:52 AM	#3
JaimeAdams PMASI Join Date: Aug 2015 Location: Pittsburgh, PA Posts: 468	My 220 has 2 inch drains and 1 1/2 returns. We set up a new DD 250 2 weeks ago and it had 1 1/2 drains from the factory. It really comes down to how much water you want to be changing.