One way ball valve on return pump?

[84chris]

Just curious if anyone has done this. I dont see too many people suggesting it. My return is kind of complicated and my safest thing to do in case of power outage is this. Is there anything i should worry about?

 

[PrivateJoker64]

Do you mean a check valve?
I guarantee that eventually it will fail open and cause a flood. Just a matter of time. Anything with moving parts will eventually go bad, and these are no exception. The only safe thing to do is have the return line go over the top of the tank, and end just barely under the water surface so that it can't siphon much water out of the tank.

 

[pledosophy]

I use ball valves on my return pumps.

I have had no luck long term with check valves.

I have my return go through the back of the tank, but drill syphon holes in the locline so if the power does go out the tank will only drain to the syphon hole.

HTH

 

[ManotheSea]

A hole drilled for a syphen break is your answer. It can even be drilled above the water line if you dont mind the side squirting action when running. Then as soon as the flow stops and starts to reverse air is sucked in to the line and breaks the syphen.

 

[Roy G. Biv]

Re: One way ball valve on return pump?

<a href=showthread.php?s=&postid=11962389#post11962389 target=_blank>Originally posted</a> by 84chris
Just curious if anyone has done this. I dont see too many people suggesting it. My return is kind of complicated and my safest thing to do in case of power outage is this. Is there anything i should worry about?

Like all stated above, it is best to design your system to not need one. However if you must, I like the one in the pic below. It completely comes apart for cleaning to try to avoid it failing at some point.

 

[gguertin]

what is the name of whats in the pic above?

 

[bhdmc]

It is called a Wye check valve.

<a href=showthread.php?s=&postid=11964406#post11964406 target=_blank>Originally posted</a> by gguertin
what is the name of whats in the pic above?