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A Y check valve is DEFINITELY worth it. Take it from me, who used a cheap check valve and ended up with a flooded living room. You NEED a good check valve! I don't usually deal in absolutes but I'm 100% certain about thisI’m having a hard time fitting my check valve into my plumbing. I can make it work but it’s gonna be tight.
Is it worth using one?
I give up, what is it?