pics DIY PVC OVERFLOW!

peacemaker68m

peacemaker68m

New Member
Originally Posted by renogaw
http:///forum/post/2378633
no worries of overflowing when the power turns off with this setup?
Is the check valve necessary? If so, then I need more detail how to fabricate it. The picture did not answer my question.
Respectfully,
Confused
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by peacemaker68m
http:///forum/post/2556772
Is the check valve necessary? If so, then I need more detail how to fabricate it. The picture did not answer my question.
Respectfully,
Confused
Yes from what i noticed the check valve will be needed.However the pump i had wouldn't keep up with the overflow,so I'm going to need to re-fabricate it with smaller pipe or get a bigger pump.Ill post the actual numbers when i get it up and running correctly.Check the links in the previous posts there are some actual numbers.
 
coralreefer

coralreefer

Active Member
if i used 1.5 in. pvc pipe it would make somewhere between 750-950 GPH right? could i use a ball valve to reduce the flow?
 
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veni vidi vici

Active Member
Originally Posted by coralreefer
http:///forum/post/2556971
if i used 1.5 in. pvc pipe it would make somewhere between 750-950 GPH right? could i use a ball valve to reduce the flow?
I tried that with the 1" and i couldn't get the flow consistent.either the water in tank would drop and start sucking alot of air or not enough flow to sump.I couldnt find a sweet spot with a ball valve.I think going with an over sized pump and throttling that down would work better
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by coralreefer
http:///forum/post/2557586
so, if i used 1.5 in pvc should i use a 900-1000 GPH return pump?
I really couldnt tell you.I used 1" Pipe with about 750 gph return and the pump couldnt keep up.Thats all i know for sure.But if i was going to take a guess ,i would say no not enough pump.
 
snakeblitz33

snakeblitz33

Well-Known Member
depends on what size pump you are going to run it on and how many elbows and T's and outlets etc.
Also, you have to compensate for head height. Generally, I run all of my water through a 3/4" schedule 40 PVC which does fine. Going with anything too small will actually create a lot of back flow on your pump and cause a rise in temp in your tank and decrease your pump life.
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by SnakeBlitz33
http:///forum/post/2558115
depends on what size pump you are going to run it on and how many elbows and T's and outlets etc.
Also, you have to compensate for head height. Generally, I run all of my water through a 3/4" schedule 40 PVC which does fine. Going with anything too small will actually create a lot of back flow on your pump and cause a rise in temp in your tank and decrease your pump life.
Its a return not supply
 
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veni vidi vici

Active Member
Im goint to give the 1/2" pipe a shot this weekend ,ill let you know how it goes.
To be honest i would rather slow the flow through the sump/refugium down anyway to maximize the use of my cheto anyway.I dont rely solely on my supply pump for flow in my tank .
 
coralreefer

coralreefer

Active Member
i am solely relying on the return pump for flow in the tank, so should i use the 3/4" pvc to create 800-900GPH flow?
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by coralreefer
http:///forum/post/2559616
i am solely relying on the return pump for flow in the tank, so should i use the 3/4" pvc to create 800-900GPH flow?
I really couldnt say for certain coralreefer.But the cost of material will be under $10 @ HD.I would give it a try.
Hope it works for you,and if you build yours before i get around to building mine ,let me know how it goes.
 
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