Need opinions plumbing my drain overflow standpipe.

jdantunes · 08/06/2011, 09:50 AM

I'm not having a good time with my drain plumbing.

I think that my problem is that I plumbed my drain using 1" standpipe in my overflow box and continued with the same diameter all the way down to my sump.

Now taking in consideration that in using a EHEIM 1260 - 635 gph plumbed as my main pump using 3/4" pipe. The display water level keep is going up faster than my drain can handle.

The tank has a 1" bulkhead for drain and a 3/4" bulkhead for return.

What should I do?

Should I change the drain pipe size to 1.5"? Will this make a difference?

wildman926 · 08/06/2011, 10:13 AM

Just put a valve on the output of the Eheim inline to the return of the tank, or go to the hardware store and get a male 3/4" ntp to 5/8" or 1/2" hose adaptor (ribbed for your tubing). This will slow it down enough for you. This is what I had to do.

08/06/2011, 09:50 AM	#1
jdantunes Registered Member Join Date: Aug 2009 Location: Naples, FL Posts: 549	Need opinions plumbing my drain overflow standpipe. I'm not having a good time with my drain plumbing. I think that my problem is that I plumbed my drain using 1" standpipe in my overflow box and continued with the same diameter all the way down to my sump. Now taking in consideration that in using a EHEIM 1260 - 635 gph plumbed as my main pump using 3/4" pipe. The display water level keep is going up faster than my drain can handle. The tank has a 1" bulkhead for drain and a 3/4" bulkhead for return. What should I do? Should I change the drain pipe size to 1.5"? Will this make a difference? __________________ Jonathan Current Tank Info: 75 Gallon Deep Blue Rimless

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08/06/2011, 10:13 AM	#2
wildman926 Registered Member Join Date: Feb 2011 Location: CTX Posts: 2,904	Just put a valve on the output of the Eheim inline to the return of the tank, or go to the hardware store and get a male 3/4" ntp to 5/8" or 1/2" hose adaptor (ribbed for your tubing). This will slow it down enough for you. This is what I had to do.