backflow issue: sump overflow

[riveria]

Hi bro,

How to solve this? I read some bro saying drilling a hole or put some valve.

Noobie on plumbing. Can any sifu elaborate?

Thanks

[youdontnowm]

I drilled a small hole at the output. Works perfectly and 100% no fail lol

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[Solo77]

Drill hole at the return pipe where u want to water level at yr main tank to be if everything stop. The reason being when yr return pump stopped for whatever reason, there will be back flow. As the water get sucked back to the sump, yr main tank water level will drop and once the water lvl dropped to the drilled hole lvl, air will gush in to stop the back flow. Hope this help and u may to surf u tube to see the explanation.

[riveria]

Thank you for the advice, broz

Awesome. I'll try it out.

[JoeyBabooey]

yup! add my 2 cents.. definitely works when you drill a hole in the outflow.

[AroDan]

Good and simple. But the problem I have is my outlet pipe opening is located just 1inch below the surface of the water. It's overflowed my sump once when I was overseas and came home to a flooded living room.

[Martian]

Good and simple. But the problem I have is my outlet pipe opening is located just 1inch below the surface of the water. It's overflowed my sump once when I was overseas and came home to a flooded living room.

Bro... Do you have a photo of the outlet pipe? Quite difficult to visualize your setup leh...

[Anchorman]

Good and simple. But the problem I have is my outlet pipe opening is located just 1inch below the surface of the water. It's overflowed my sump once when I was overseas and came home to a flooded living room.

IMO, Drill a hole half inch above your outlet pipe opening so when water level drop air will enter the pipe earlier to stop the back flow.

Hope it helps. Cheers,

[AroDan]

Ok. I will take a photo and upload tonight.

Now I so afraid of that happening again so I have to pass a set of keys to my neighbour just in case I'm overseas and it over flow.

I check my tank using my home cam. Haha

[JoeyBabooey]

yea bro a picture would do great.

also, like what bro Anchorman said, drill a hole above the water can already =)

if need be, later i can post a picture here when i get home.

[JoeyBabooey]

Hi bro,

not sure if your outflow is similar to this but the hole is drilled at the bottom of the right angled section above the water of the outflow.

[AroDan]

I have problem trying to upload the photo.

It just shows error.

[AroDan]

Finally managed to upload.

Please advise where should I drill the hole?

[AroDan]

Sorry Bro Riveria for hijacking your thread to ask about my backflow problem

[youdontnowm]

Finally managed to upload.

 

Please advise where should I drill the hole?

Below waterline (:

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[Martian]

Below waterline (: Sent from my GT-N7105 using Tapatalk

Yup...

[AroDan]

Ok got it.

I will try to drill it this weekend

[sunny03]

I would prefer to drill slightly above the water line.... Maybe less then 5mm above water line... and the hole cannot be too ssmallat least 3mm or bigger

If you drill below water line. . Before it break siphon your sump might already flooded..

[AroDan]

I will try slightly low the water. Will drill it later tonight

[Boonboy]

Saw some post where people just insert and air tube. Of course the other end must not be in the water. Maybe you can try(if you an air tube lying around).

[AroDan]

I managed to drill 2 holes. It works well. Finally solved this problem.

[AroDan]

Manage to drill 2 holes just below the water surface.

Some guy told me its better to have 2 holes just in case one hole is choked up by something.

Now it works well for me.

[Martian]

Manage to drill 2 holes just below the water surface.

Some guy told me its better to have 2 holes just in case one hole is choked up by something.

Now it works well for me.

Great...

[Evolutionz]

I did the same. Never fail before. I also drill 2 holes

[riveria]

Sorry Bro Riveria for hijacking your thread to ask about my backflow problem

No worries man. I'm glad I solved mine with the bro's help