Help With Overflow Noise

[widarecu]

I keep my primary drain 1” under the sump‘s water level as it makes purging air out of the primary line much easier. At 10”, that’s a lot of back pressure for the air to overcome, thus trapping the air in the primary line plumbing and making it noisy.

From the diagrams, it looks like the drain that used to be the return line is lower than the drain you are using as secondary, but it also looks like all three are under water when the system is running. Is that correct?

Coulple others responded above too - 10" is way to much - it's too hard to clear out all the air in the line.

Biggest thing and easiest way to think about it all is......

is there anywhere for air to get trapped in the drain lines? if so - fix that first. You basically want zero air in your primary drain line or you are not acheiving a siphon. No siphon means noise and very much reduced flow.

Thanks a lot guys, I’ll give it a try this weekend and will report back how it went, the solution should be there

 

[lmm1967]

Yes exactly all three under water :/

I keep my emergency above the water level in the sump. If I hear water coming from my sump area - I know something is wrong.

 

[widarecu]

Solved!!! I changed the plumbing for 1” hose and that did the trick, no more noice and the full syphon happens pretty quick without overflowing the tank anymore.

Luckily I didn’t have to cut the drains, got away with that, thanks a lot guys for all your help, really appreciate it

 

[foxt]

Great job. I'd still suggest raising the bottom of the tubes in the sump so that the main and secondary are about 1" under water, and the emergency is above the water level. I would also suggest raising the emergency in your overflow a little bit more than everything else, so that it does not usually flow at all. It's there for emergency purposes only, afterall.

 

[lmm1967]

Great job. I'd still suggest raising the bottom of the tubes in the sump so that the main and secondary are about 1" under water, and the emergency is above the water level. I would also suggest raising the emergency in your overflow a little bit more than everything else, so that it does not usually flow at all. It's there for emergency purposes only, afterall.

This right here - will give you the best performance with great peace of mind and should work flawlessly for years.

 

[widarecu]

Great job. I'd still suggest raising the bottom of the tubes in the sump so that the main and secondary are about 1" under water, and the emergency is above the water level. I would also suggest raising the emergency in your overflow a little bit more than everything else, so that it does not usually flow at all. It's there for emergency purposes only, afterall.

This right here - will give you the best performance with great peace of mind and should work flawlessly for years.

I’ll work on it this weekend, the last bits to leave it perfect, thanks guys!!