Using a push connect check valve for ATO

[dputt88]

so after many years in the hobby this is the first time I have seen these. found them while looking for a couple items to upgrade my RO/DI system.

so can i use this on my ATO? if so, why does neptune give you a simple connector with a hole drilled in it and not one of these?

Does it have to be vertical?

https://www.bulkreefsupply.com/mur-lok-inline-check-valve-1-4-x-1-4-push-connect.html

 

[Reeferdood]

so after many years in the hobby this is the first time I have seen these. found them while looking for a couple items to upgrade my RO/DI system.

so can i use this on my ATO? if so, why does neptune give you a simple connector with a hole drilled in it and not one of these?

Does it have to be vertical?

https://www.bulkreefsupply.com/mur-lok-inline-check-valve-1-4-x-1-4-push-connect.html

Depending on the setup of your ATO you do not need a check valve at all. Just make sure the outlet side of the hose from the ATO reservoir is higher than the top waterline of the reservoir.

 

[Mical]

The one apex supplies is an anti flowback valve - reason for the hole. The one you listed from BRS is just a straight connector

 

[JoshH]

The one apex supplies is an anti flowback valve - reason for the hole. The one you listed from BRS is just a straight connector

The one the OP posted is a check valve not a straight connector. If you take a close look and notice the arrow moulded into the side of the fitting this indicates the direction of flow. The hole in the apex fitting is a siphon break but is just one way to prevent the back flow. A straight connector looks like this...

I agree with @Reeferdood, skip any valve and plumb it so it doesn't siphon into your sump or tank.