My DIY PVC Overflow; How's my pluming???

[thefishguy7]

notgood lookin out.. drilling a hole in the overflow will make it not restart when the power comes back on... aka it will turn from an overflow into a syphon.. if the problem pipe was taller and at the water line (like it should be) there would be no problem..

You're right..that trick is only good for canisters.

 

[Pharaoh]

How do the intakes sit in relation to the top of the tank? As long as you have the available volume in the sump, you would be OK either way.

 

[Riv D]

As long as I don't fill the tank far above the intakes, everything will be fine.
I know it looks kind of low. I still have leftover black PVC to make them a little higher.
Any suggestions as to how low is enough?

 

[chesterthehero]

if you want the water line to be 3"-4" below the top.. put the overflows in the tank with the longer "leftover" black pvc on them.. then mark it 4"-5" below the top.. this will give you an inch or so for the elbows at the top and set your water level...

the "overflow" will always set the water level.. unless your pump "pumps" more than they can flow which in the end will leave your sump dry and/or your tank flooded... yes you can "fill the tank" above the overflows.. but its only a matter of time before they do their job and drop the water level to their hight..

sorry if i come off as a know it all.. i just dont want you to throw your overflow across the backyard like i did with mine till i figured it out...

 

[Pharaoh]

if you want the water line to be 3"-4" below the top.. put the overflows in the tank with the longer "leftover" black pvc on them.. then mark it 4"-5" below the top.. this will give you an inch or so for the elbows at the top and set your water level...

the "overflow" will always set the water level.. unless your pump "pumps" more than they can flow which in the end will leave your sump dry and/or your tank flooded... yes you can "fill the tank" above the overflows.. but its only a matter of time before they do their job and drop the water level to their hight..

sorry if i come off as a know it all.. i just dont want you to throw your overflow across the backyard like i did with mine till i figured it out...

chester nailed it. Go with the 4-5". You should have plenty of room for your head bangers.

 

[Riv D]

if you want the water line to be 3"-4" below the top.. put the overflows in the tank with the longer "leftover" black pvc on them.. then mark it 4"-5" below the top.. this will give you an inch or so for the elbows at the top and set your water level...

the "overflow" will always set the water level.. unless your pump "pumps" more than they can flow which in the end will leave your sump dry and/or your tank flooded... yes you can "fill the tank" above the overflows.. but its only a matter of time before they do their job and drop the water level to their hight..

sorry if i come off as a know it all.. i just dont want you to throw your overflow across the backyard like i did with mine till i figured it out...

So you mean expect the water level to be higher than the elbows, right?
And no, you don't sound like a know it all. I'm asking for advise, so please, let it all out!
Thanks.

 

[Pharaoh]

The water level will be higher than the bottom of the overflow opening, but generally not taller than the top of the opening. This will vary based on overflow diameter and pump size. He is just saying to measure a inch or so down to compensate.

 

[Peter O'B]

Good advice there.

BTW: What's an "Engeneering Student" ?

 

[Pharaoh]

Good advice there.

BTW: What's an "Engeneering Student" ?

I have no idea what your talking about. You shouldn't change people sigs for your own pleasure. LOL

 

[Riv D]

OK here it is, All that's left to do is add the check valves,put a hole in the cap, and glue; but b4 I do that I 'd like some opinions.
I hope I've done everything right,It's taken me forever.