Reducing Return Line to tank

Adams11s · 11/15/2017, 11:22 AM

Hey Guys. I have a quick question. I just got a Sicce Pro 4000 return pump for my sump. My setup goes through a manifold into the one return line in my reef ready tank. My problem is the manifold and all of the piping measures 3/4 PVC and the pump exits at 1".

Is it safe to put a bushing/reducer to 3/4 so it will fit my manifold and my 3/4 return in the tank?

nereefpat · 11/15/2017, 11:24 AM

Yes it's safe.

You will lose some flow, of course.

outy · 11/15/2017, 12:01 PM

unless that's a basement sump, that is way to strong a pump.

you only need about 300-400 GPH for a sump

you may have drain issues, and very noisy at that

SFish · 11/15/2017, 12:49 PM

Quote:

Originally Posted by outy

unless that's a basement sump, that is way to strong a pump.

you only need about 300-400 GPH for a sump

you may have drain issues, and very noisy at that

How would you know? Doesn't say the tank size, number of 90's, vertical height, or stuff on the manifold. He also is adding friction by reducing the pipe size. That pump is rated at 1000gph.

outy · 11/15/2017, 04:40 PM

Quote:

Originally Posted by SFish

How would you know? .

Experience.

1000gph is to much for a single 3/4 return period.

If he has a single 3/4 return, it is unlikely he has 2 X 1 inch return drains that would flood out, or make to much noise over 500GPH.

Use common sense

Lsufan · 11/15/2017, 07:55 PM

U can but it would kill the flow. It will be like having a valve that is halfway closed at the pump.

SFish · 11/15/2017, 09:27 PM

Quote:

Originally Posted by outy

Experience.

1000gph is to much for a single 3/4 return period.

If he has a single 3/4 return, it is unlikely he has 2 X 1 inch return drains that would flood out, or make to much noise over 500GPH.

Use common sense

He wouldn't get a 1000gph with head loss plus 90's and he's going to bleed speed off with the manifold. On top of that with a smaller pipe he's adding a lot of friction. I agree it's set up wrong though. I would not restrict a pump by down sizing the pipe on the out put.

SFish · 11/15/2017, 09:27 PM

Quote:

Originally Posted by lsufan

u can but it would kill the flow. It will be like having a valve that is halfway closed at the pump.

+1

Adams11s · 11/30/2017, 08:50 AM

Thanks for the info guys. It is going through a lot in the manifold and Works great. I of course understand a little loss in flow, but was more concerned if it would hurt the pump. Sicce told me it wouldn't cause any harm as it is designed to handle it. Flow is great and quiet ��

billdogg · 11/30/2017, 09:27 AM

Decreasing the output plumbing size (or using a valve to reduce flow) is no different whatsoever than increasing the head height. You will be fine. Too much resistance from whatever the source will just decrease output.

mcgyvr · 11/30/2017, 11:31 AM

You can always "restrict" the outlet of the pumps we use without any problems..

DO NOT do the same for the inlet of the pumps or you risk "cavitation" which can damage a pump quickly..

And by "manifold" did you mean you are running additional reactors,etc.. of that hence why you wanted an "oversized" pump for the application?

11/15/2017, 11:22 AM	#1
Adams11s Registered Member Join Date: Nov 2017 Posts: 2	Reducing Return Line to tank Hey Guys. I have a quick question. I just got a Sicce Pro 4000 return pump for my sump. My setup goes through a manifold into the one return line in my reef ready tank. My problem is the manifold and all of the piping measures 3/4 PVC and the pump exits at 1". Is it safe to put a bushing/reducer to 3/4 so it will fit my manifold and my 3/4 return in the tank?

11/15/2017, 11:24 AM	#2
nereefpat Registered Member Join Date: Apr 2016 Location: Central Nebraska Posts: 3,190	Yes it's safe. You will lose some flow, of course. __________________ Pat Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers

11/30/2017, 09:27 AM	#10
billdogg Registered Member Join Date: Apr 2008 Location: Grove City, Ohio Posts: 10,806	Decreasing the output plumbing size (or using a valve to reduce flow) is no different whatsoever than increasing the head height. You will be fine. Too much resistance from whatever the source will just decrease output. __________________ I'll try to be nice if you try to be smarter! I can't help that I grow older, but you can't make me grow up! Current Tank Info: 120 mixed reef with 40b sump, RO 150 skimmer, AI Sol Blue x 2, and a 60g Frag Tank with 100g rubbermaid sump. 2 x Kessil A360w lights, BM curve 5 skimmer

11/30/2017, 11:31 AM	#11
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	You can always "restrict" the outlet of the pumps we use without any problems.. DO NOT do the same for the inlet of the pumps or you risk "cavitation" which can damage a pump quickly.. And by "manifold" did you mean you are running additional reactors,etc.. of that hence why you wanted an "oversized" pump for the application? __________________ Who me?

11/15/2017, 12:01 PM	#3
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	unless that's a basement sump, that is way to strong a pump. you only need about 300-400 GPH for a sump you may have drain issues, and very noisy at that

11/15/2017, 07:55 PM	#6
Lsufan Registered Member Join Date: Nov 2013 Location: Baton Rouge Posts: 1,410	U can but it would kill the flow. It will be like having a valve that is halfway closed at the pump.

11/30/2017, 08:50 AM	#9
Adams11s Registered Member Join Date: Nov 2017 Posts: 2	Thanks for the info guys. It is going through a lot in the manifold and Works great. I of course understand a little loss in flow, but was more concerned if it would hurt the pump. Sicce told me it wouldn't cause any harm as it is designed to handle it. Flow is great and quiet ��