5/8 inch one way check valve

[andrewttw]

Does anyone know where I can get a 5/8 inch one way check valve?

Want to use it to prevent back flow from main tank to sump invade of power outage.

With my current config, a power outage would be a deep sea disaster in my living room. No much space for excess flow in the sump.

Any other suggestions to help appreciated.

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[Kayakkite]

Can a 1/2" check valve with reducer. 5/8 not so common.

[Kayakkite]

If not, rise your pump outlet close to overflow. In that case, you will have lesser water returning to sump, in case of siphoning.

[andrewttw]

Don't really wanna raise the sump. Balancing between hiding the unnecessaries and practicality. Currently my sump still provides the function while being hid in the corner and not sticking out like a sore thumb.

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