Check valves for vents on reversible pumps?

[jmvotto]

Gate swing type or spring type?

[brain_rinse]

Full flow flapper (probably called gate swing ) like this: http://www.wakemakers.com/marine-check-valve.html

[jmvotto]

Full flow flapper (probably called gate swing ) like this: http://www.wakemakers.com/marine-check-valve.html

Installed these today on all three bags , and just as advertised, sucks them flat. Forgot who recommended the vents in the first place, but thanks not sure why sc just does not add 50 fr these to the setup.

[wolfeman131]

and just as advertised, sucks them flat. Forgot who recommended.

thought this was a thread about ballast, not Dusty's Mom?

[lsvboombox]

Installed these today on all three bags , and just as advertised, sucks them flat. Forgot who recommended the vents in the first place, but thanks not sure why sc just does not add 50 fr these to the setup.

Im not sure why they dont install them either. Its a night and day difference with the reversible pumps