Help with my pump issues

  • We are currently upgrading MFK. thanks! -neo
If your drains are 1.5inch bulk heads and you have 2 and you do not restrict it and use pvc at 1.5inch you can run both pumps at full as I had a mag 18 running through a 1.5inch bulkhead then 1.5 piping as my drain to sump and it worked fine. Just make sure to keep it 100 percent open because you are reaching max.

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ElectricBlueSeanBurch said:
What do you mean more complicated style? When you buy a drilled tank they typically come with durso standpipe kits. Mine did and that's what i used. They are just standard mega flow overflow kits. Im not running a Herbie or be an animal. None of my drains are under full sypon. I don't have to use gate valves to throttle drains or returns. I have 3x1" drains hard plumbed and 2x1" returns hard plumbed. Nothing "more complicated" about it. Then again keep believing your interweb stories and I'll live by my real world experience..
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I don't like to ramble on so I'll keep it short.

Here is a link explaining the difference between a Durso and a gravity based overflow. You admitted yours are under siphon. Hence why you can pull more through the pipe then rated. Here's a link that can help you out.

http://www.dursostandpipes.com/faq/41-what-flow-rates-are-possible-with-a-durso-standpipe

Done reading? Look at the OPs overflow. does it look like a durso?

Your real world experience trumps mine? I mentioned I'm running overflows and a sump. I guess you were to ignorant to remember that or read it in the first place when you reposted.

The pipe under no pressure has a 600 gph rating. Unless using a a more complicated overflow you should aim for the ratings. Even less to avoid incident.

I have 1" pvc overflows and I can garuntee that I'm only getting about the 600 gph with them siphoning. So even if you do put them under full siphon there's still other factors that will determine the end flow rate.

Op I just don't want you to flood your room.

ElectricBlueSeanBurch please don't tell people to over run an overflow just because you can. Especially when your running a different overflow. You can cause people thousands of dollars with the bad info.







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I never said OP had a durso. The link you posted doesn't mention any differences between "gravity" drains and "durso" drains. The link says the only limiting factor is the bulkhead size. None of My drains are under full syphon. Worse case scenario if my tank level rises one of my 3 drains will catch syphon and handle it easily. Op run whatever you feel comfortable. I don't want to cause you thousands of dollars...

P.s. dursos aren't meant to drain faster, only be quieter.
 
ElectricBlueSeanBurch said:
I never said OP had a durso. The link you posted doesn't mention any differences between "gravity" drains and "durso" drains. The link says the only limiting factor is the bulkhead size. None of My drains are under full syphon. Worse case scenario if my tank level rises one of my 3 drains will catch syphon and handle it easily. Op run whatever you feel comfortable. I don't want to cause you thousands of dollars...

P.s. dursos aren't meant to drain faster, only be quieter.
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Your original post had no mention of durso s the Op had already posted a pic of his overflow.. you have 2 different type of overflows... even some people with dursos don't get huge increases in flow. It's just bad advice to tell someone it will work.

I never said it won't work nor did I say yours is not doing it. But regardless of your "real world experience" I know that I have 2 basic pvc overflows and they don't do much more then 600 gph each. All hard plumed only 3 ft away from the sump only angle is 1 45 down to the sump. so my "real world experience" says it won't always push that much over rated.

It's not very bright In general to advise to go over rating.its like telling someone to put a large tank on an 2nd floor without really knowing the house.

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LukeOscar said:
Your original post had no mention of durso s the Op had already posted a pic of his overflow.. you have 2 different type of overflows... even some people with dursos don't get huge increases in flow. It's just bad advice to tell someone it will work.

I never said it won't work nor did I say yours is not doing it. But regardless of your "real world experience" I know that I have 2 basic pvc overflows and they don't do much more then 600 gph each. All hard plumed only 3 ft away from the sump only angle is 1 45 down to the sump. so my "real world experience" says it won't always push that much over rated.

It's not very bright In general to advise to go over rating.its like telling someone to put a large tank on an 2nd floor without really knowing the house.

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OK I'm not down for a hair splitting session. We will just have to agree to disagree. Op here are my facts

1 have 3 1" drains with dursos

I can easily and without issue flow well over 3000gph through said drains

None of my drains are under full syphon.

Anyone who doesn't believe it is more than welcome to come by and take a look. Anyone who says its impossible is a wrong. I believe if I converted it do a Herbie setup I could get almost twice this flow without issue, but its a fish tank not a hot tub.
 
DIDYSIS said:
If your drains are 1.5inch bulk heads and you have 2 and you do not restrict it and use pvc at 1.5inch you can run both pumps at full as I had a mag 18 running through a 1.5inch bulkhead then 1.5 piping as my drain to sump and it worked fine. Just make sure to keep it 100 percent open because you are reaching max.

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What do you mean by keep it 100% open?

It's working fine as it is right now, just that the one overflow is slightly noisy every now and again.
 
I re-did the plumbing to PVC. That little spur where the white tube was attached was actually 1 inch, I wonder how much that effected it, sort of like a bottle neck, probably made a good difference. Both pumps running no problem, there are a couple tiny leaks in my PVC setup, I didn't want to put any glue on because I didn't want toxic stuff in my water, so I duck taped it for the time being, but just curous what do you guys use to fix the little drips? Only in like 2 places, would you use caulking on the outside? Pipe adhesive? Don't feel like taking it apart and stressing my fish again.

Btw I also shorten the output hoses so it goes direct to the tank, they are 1 inch, would there be a benefit to going bigger?
 
If I was you I would glue your new pvc drains with a pvc cement that is safe for potable water. All it takes is something falling over to knock that apart.
 
Use PVC adhesive that's good for drinking water. Glue all your pieces.
Do it right the first time because it won't come loose later.

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Yea I will, was just thinking about relocating purposes (moving to a new house this summer) as well as using something that could harm the fish as I am not knowledgeable, thought I would ask here first. Took 2.5 hours yesterday from start to finish, fish were a bit stressed, and as of right now I duct taped it really well, so I will leave the gluing for a bit, but I will for sure get it done. Thanks.

Any comments on increasing the size of the output pipes?
 
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