Learned something about valves today

[untamed]

Holy (*^()!

I have the same valves...a lot of them...holding back a lot of water (like 500 gallons) and did NOT know that the balls can come out of them.

So you want to install these such that the pressure is pushing with the direction of the arrow while you are disconnecting things.

For example....One installed on the output of the return pump needs to be installed with the arrow pointing toward the pump. (which would be AGAINST the direction of flow when it is running)

You may have just saved me from an epic disaster some day! Thanks!