some put a check ball on top like the ball inside a shop vac.
( i got shop vac on the brain. stop me....)
then if water goes too high the ball closes the induction pipe. starving engine.
takes lots of effort to do that.
starving for air is harmless , but hydra-lock is destruction.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.