Need Advice: broken ballast check valve

[Skyskiguy]

Replaced mine three years ago with check valves from a local irrigation supply house - same thing that came stock, 1/3 the price, and still working just fine!

[Bohmer410]

I love wakemakers products, expect for there check valves. I had to replace all 6 valves in the first season. I picked up new check valves at Lowe's for a quick fix two seasons ago and haven't had any problems.

[UTVol481]

I'm surprised those PVC check valves have lasted this long.

Will these work? http://www.wakemakers.com/anti-siphon-check-valves

[MLA]

Short or replumbing, you will likely need to retain a check valve. I would go with an actual marine check valve as opposed to those irrigation valves found at hardware stores.

[UTVol481]

One of my check valves is cracked and leaking into engine compartment bilge. I believe its the check valve on the bag fill side of the ballast manifold.

Is there a better solution than just replacing that check valve with a new one?

If there's not a better solution, where's the best place to get one?

Thanks!