Return pump with neutral flow feed mode?

[Waynerock]

I believe the COR and the Ecotech pump are two I am aware of, are there any others? That are maybe a little cheeper?
It’s when you hit pause on the return and the pump does not let water flow back into the sump for those that don’t know what I am asking
Thanks

 

[mfinn]

Reef Octo VarioS ?

 

[Waynerock]

Reef Octo VarioS ?

No I have a 2 and it just turns off for 15 or 30 min so you don’t forget to turn it back on. All the water still runs back into sump

 

[mfinn]

I believe the COR and the Ecotech pump are two I am aware of, are there any others? That are maybe a little cheeper?
It’s when you hit pause on the return and the pump does not let water flow back into the sump for those that don’t know what I am asking
Thanks

I use a wye check valve on my returns for just that reason. It stops the flow when the pump is off.
I don't use it to keep the sump from overflowing. I have plenty of room in my sump if it were to fail.
I've been using it about 6 years now. I do take it apart and clean it every 6 months or so