ATO hissing noise

AquaAdam · 04/13/2018, 08:34 AM

I have the neptune atk, not the full apex, I bought it because I liked the fact the pump can go vertically 14'. I ran mine approximately 10' vertically to my main level from the basement. I noticed that after it refills to the appropriate level it makes a hissing noise. Now I know this is just air in the pump but it is kind of annoying, so I'm wondering if this is normal or is there a way to eliminate the hissing sound?

Thanks!

rynoe · 04/13/2018, 10:15 AM

It is normal. It is air being pulled back through the float valve when the pump shuts off and the water in the line flows back to the source tank. You could install a check valve in the line at the pump outlet so the water remains in the line when the pump shuts off. Another option would be to just remove the float valve but then you loose one level of fail safe.

mcgyvr · 04/13/2018, 10:30 AM

^^ yep.. I don't have it but that surely sounds like a proper answer..
Just giving the +1

AquaAdam · 04/14/2018, 09:47 AM

Hi and thanks for the replies.

So I'd need a check valve for a 1/4" line then? and I would put it just after where it connects to the pump? Just want to make sure I do this properly.

mcgyvr · 04/15/2018, 07:38 AM

yes.. check valve.. anywhere along the line is fine..

04/13/2018, 08:34 AM	#1
AquaAdam Registered Member Join Date: Mar 2016 Location: Ontario Posts: 95	ATO hissing noise I have the neptune atk, not the full apex, I bought it because I liked the fact the pump can go vertically 14'. I ran mine approximately 10' vertically to my main level from the basement. I noticed that after it refills to the appropriate level it makes a hissing noise. Now I know this is just air in the pump but it is kind of annoying, so I'm wondering if this is normal or is there a way to eliminate the hissing sound? Thanks!

04/13/2018, 10:30 AM	#3
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	^^ yep.. I don't have it but that surely sounds like a proper answer.. Just giving the +1 __________________ Who me?

04/15/2018, 07:38 AM	#5
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	yes.. check valve.. anywhere along the line is fine.. __________________ Who me?

04/13/2018, 10:15 AM	#2
rynoe Registered Member Join Date: Feb 2012 Location: Surrey BC Posts: 94	It is normal. It is air being pulled back through the float valve when the pump shuts off and the water in the line flows back to the source tank. You could install a check valve in the line at the pump outlet so the water remains in the line when the pump shuts off. Another option would be to just remove the float valve but then you loose one level of fail safe.

04/14/2018, 09:47 AM	#4
AquaAdam Registered Member Join Date: Mar 2016 Location: Ontario Posts: 95	Hi and thanks for the replies. So I'd need a check valve for a 1/4" line then? and I would put it just after where it connects to the pump? Just want to make sure I do this properly.