Need help with drain pipe....

11sec76 · 09/28/2013, 11:49 AM

i just started my 265 build and im working on the plumbing. i have a marineland tank, stand and canopy with 1" overflow kit. the question i have is if there is enough flow coming through the right overflow. i have a 3/4" line running directly into the refugium with a valve to regulate the flow and another 3/4" line running to the skimmer section. also have the drain from the left side that is 1" all the way to the skimmer section (i took it out so you can see all of the plumbing in question). im wondering if this will be a problem or not? if it is, can i simply connect a 3/4 to 1" adapter to the side running to the skimmer?

mfinn · 09/29/2013, 08:46 AM

Not sure if I'm seeing this or reading it right.

Your only way to move water from the display to the sump is a single 1" drain?
IMO that's a little small for a 265 gallon tank.
Any way to upgrade to a bigger dia.?

With a single 1" drain, I would just run it to the right side of the sump and eliminate the tee.
I'm assuming that there is a way that the water moves from the chamber that the skimmer is in to the next chamber, like holes/slots at the bottom of the wall that separates the 2 chambers?

11sec76 · 09/29/2013, 10:57 AM

There is another 1" drain that runs from the left side. I just took it out for the picture so you could actually see the part I'm having questions about. The hole for the refugium is a good 3" higher than the water level in the skimmer section.

Vinny Kreyling · 09/29/2013, 11:06 AM

Only a trial run can answer your concern.
I would however run the pipe to the skimmer section longer on the 1" diameter & reduce it @ the very end, leaving plenty of room if it does not work.

11sec76 · 09/30/2013, 08:08 AM

thanks vinny, i changed the size to 1" for both sides of the "T" until it makes the 90 to go to the refugium.

09/29/2013, 08:46 AM	#2
mfinn Registered Member Join Date: Apr 2002 Location: Olympia. WA. Posts: 8,648	Not sure if I'm seeing this or reading it right. Your only way to move water from the display to the sump is a single 1" drain? IMO that's a little small for a 265 gallon tank. Any way to upgrade to a bigger dia.? With a single 1" drain, I would just run it to the right side of the sump and eliminate the tee. I'm assuming that there is a way that the water moves from the chamber that the skimmer is in to the next chamber, like holes/slots at the bottom of the wall that separates the 2 chambers? __________________ 240 gallon soft coral tank 50 gallon lps tank

09/29/2013, 10:57 AM	#3
11sec76 Registered Member Join Date: May 2013 Posts: 37	There is another 1" drain that runs from the left side. I just took it out for the picture so you could actually see the part I'm having questions about. The hole for the refugium is a good 3" higher than the water level in the skimmer section.

09/29/2013, 11:06 AM	#4
Vinny Kreyling Registered Member Join Date: Nov 2002 Location: Miller Place, NY Posts: 7,206	Only a trial run can answer your concern. I would however run the pipe to the skimmer section longer on the 1" diameter & reduce it @ the very end, leaving plenty of room if it does not work.

09/30/2013, 08:08 AM	#5
11sec76 Registered Member Join Date: May 2013 Posts: 37	thanks vinny, i changed the size to 1" for both sides of the "T" until it makes the 90 to go to the refugium.