Solutions Needed For Return

[HardyG]

What could I do to make sure this 90 elbow never moves or falls off? Also, is there anything I should be doing about backflow? I have seen some people say things about the height of the return nozzle and poking holes in something.

Any and all ideas are appreciated!

 

[Daddio64]

The only relatively clean thing I can think of is epoxy. I'd probably get some black JB Weld mix a batch clamp it. Worry about it when it's time to come apart, cause that probably won't be clean.

 

[silent1mezzo]

I'd add another 90 to turn it into a U shape, then have the locline coming out and pointing horizontal. That way it breaks siphon once it it's that level and it can't come off

 

[HardyG]

I'd add another 90 to turn it into a U shape, then have the locline coming out and pointing horizontal. That way it breaks siphon once it it's that level and it can't come off

Very intrigued by this.. So is this what you are meaning? Artistry at its finest!

 

[silent1mezzo]

Very intrigued by this.. So is this what you are meaning? Artistry at its finest!

Exactly. Then the locline is higher up so it breaks the siphon sooner.

 

[RocketEngineer]

To the left of the overflow box is my solution. Just an alternative.

 

[doubleshot00]

I used on of these for a while and it worked just fine. Then added a 3m zip tie adapter.

 

[vetteguy53081]

What could I do to make sure this 90 elbow never moves or falls off? Also, is there anything I should be doing about backflow? I have seen some people say things about the height of the return nozzle and poking holes in something.

Any and all ideas are appreciated!

Looks like you have PVC hose- you can cut at the end, and plumb it to two 90 degree elbows as pictured with locline lower instead of higher (excuse paper- im on a cruise ship-LOL) :

 

[exnisstech]

I agree with @silent1mezzo
This is mine. I drilled a small hole on the back near the arrow to act like as a syphon break so when my pump is off the water level only get to the bottom of the weirs and then stops draining. The syphon break my not be needed but mine is on a 180g so I don't want too much water draining to the sump when the pump is off.

 

[HardyG]

Should this be okay for back siphon as well?

 

[MoshJosh]

Stick one of these to the back rim:


Or just drill 2 holes on the inner rim one on each side of the pipe then run a zip tie through that.

 

[HardyG]

Where should I drill this hole everyone refers to for the return siphon? Please see pic above as to how it is all setup

 

[silent1mezzo]

Where should I drill this hole everyone refers to for the return siphon? Please see pic above as to how it is all setup

I drilled mine a couple mm below the normal waterline

 

[HardyG]

Could someone show me from this picture below where I should drill?

 

[MoshJosh]

Think people mean here:

slightly below the water line. Alternatively I just angle the nozzle to it's just below the water surface, that way when the waterline drops even slightly siphon is lost.

 

[PotatoPig]

When you turn the pump off it will siphon water down into the sump until the it starts sucking in enough air to break the siphon.

With no holes drilled it will siphon down to the end of the nozzle. This will probably flood your sump and dump water on the floor.

You probably want to drill a hole 1/4” or so about an inch below the water line.

Run a test on the siphon while you’re watching and ready to turn the pump back on if it doesn’t work fast enough. The siphon won’t break the moment the hole hits air, it could take a little time. So you want to get eyes on and verify it’s working.

Also - drill the hole in the side or base of the line. If you drill it in the top you’ll get a little fountain when you turn your pump back on until the tank water level rises enough.

Or have the end of the return very close to the water line of the tank when full.

 

[HardyG]

When you turn the pump off it will siphon water down into the sump until the it starts sucking in enough air to break the siphon.

With no holes drilled it will siphon down to the end of the nozzle. This will probably flood your sump and dump water on the floor.

You probably want to drill a hole 1/4” or so about an inch below the water line.

Run a test on the siphon while you’re watching and ready to turn the pump back on if it doesn’t work fast enough. The siphon won’t break the moment the hole hits air, it could take a little time. So you want to get eyes on and verify it’s working.

Also - drill the hole in the side or base of the line. If you drill it in the top you’ll get a little fountain when you turn your pump back on until the tank water level rises enough.

Or have the end of the return very close to the water line of the tank when full.

Thanks for the response! I had the return nozzle higher and couldn't stand the sound of the water trickling on the surface, so I would like to do the drill thing if possible. Just want to make sure I do it in the correct spot.

 

[HardyG]

Think people mean here:

slightly below the water line. Alternatively I just angle the nozzle to it's just below the water surface, that way when the waterline drops even slightly siphon is lost.

This is exactly what I was looking for! I will drill a decent sized hole there tomorrow just under the water surface. I wish the water splashing sound didn’t bother me like it does and I could just leave it facing up lol

 

[MoshJosh]

This is exactly what I was looking for! I will drill a decent sized hole there tomorrow just under the water surface. I wish the water splashing sound didn’t bother me like it does and I could just leave it facing up lol

It doesn’t have to splash at the surface, make it so the nozzle is at the surface but the water is spraying parallel to the surface.

 

[MoshJosh]

It doesn’t have to splash at the surface, make it so the nozzle is at the surface but the water is spraying parallel to the surface.