Herbie overflow users

[fishytime]

Originally Posted by Chin_Lee

I've yet to find a reliable check valve for saltwater use. the buildup of detritus and calcium carbonate always causes the check valves to fail over long term. Holes near the water line of the return is much more reliable especially if you get a stick and poke through the holes every 4-6 months.

That is why I have a true union check valve. I plan to swap it out for a new one and see if a good soak in vinegar will clean up the crud on the old one. If not a few bucks every few months isnt to much to invest for peace of mind.

[brizzo]

Originally Posted by fishytime

You could plumb in a true union check valve in the return line.

Check out the "Wye check valve" on Bulk Reef Supply. Their video shows it as being a superior design, and easier to maintenance.

[mark]

Check valves fail, siphon holes plug but a big sump can't go wrong.

[Boomboy]

understand how it works but dont understand how to plumb it was wondering still about pictures of it to make more sense thanks.