ATK/PMUMP Noise

[aaron186]

I have a Neptune ATK on my tank that connects to a RODI/mixing station in my garage. The RODI bin has the PMUP and the siphon break and connects to my tank via a 30ish ft run of RO hard tubing. I can’t hear the pump in my room, but when the pump stops I hear a spurting sound at the end of filling - presumably the air in the lines from the siphon break? It’s not terrible and it reminds me it’s working, but I’d rather not hear it. Any suggestions on how to get rid of this?

 

[ronnie]

I used a 1/2” piece of pipe and a cap to muffle the noise. Leave the siphon break inside the pipe and drill a hole through the cap to fit the orange line. Run the pipe down far enough into the water so it is always submerged (near bottom).

Peeing noise eliminated.

 

[aaron186]

I used a 1/2” piece of pipe and a cap to muffle the noise. Leave the siphon break inside the pipe and drill a hole through the cap to fit the orange line. Run the pipe down far enough into the water so it is always submerged (near bottom).

Peeing noise eliminated.

It’s not the stream of water from the siphon break that I hear though. That’s in my garage and doesn’t bother me. After the pump is finished, the last second or two of running is a spurt of air and water coming from the sump where the tube ends. It sounds like a pump running dry kinda. The PMUP is fully submerged

 

[ronnie]

Ah I see. Mine does that a bit as well (in the living room). I’m not sure there is much to do for it unless you could build an air silencer for it?