Neptune DOS

[jsch131]

Does anyone know if you need to use check valve when using these pumps

 

[kkiel02]

I don’t use one

 

[pdxmonkeyboy]

You shouldn't have to. If its nut running the tubing is too small to allow fluid to drain out of the tube.

 

[Phyber]

I don't and use standard rodi tubing

 

[Ken logan]

I keep a air gap in between water level and dosing point.