Herbie overflow users

[jasond]

Originally Posted by mark

Can't understand why a Herbie would effect a siphon break. For siphon break you are meaning a small hole in the return line from the pump back to the display?

Yes, thanks Mark, that is exactly what I mean. I have a small hole/line running from the return into the emergency overflow, this is what is getting clogged.

[untamed]

Originally Posted by jasond

Yes, thanks Mark, that is exactly what I mean. I have a small hole/line running from the return into the emergency overflow, this is what is getting clogged.

I don't understand why the emergency overflow drain seems to be involved with the return line. Maybe a photo?

[jasond]

Originally Posted by untamed

I don't understand why the emergency overflow drain seems to be involved with the return line. Maybe a photo?

It is not involved, that is just where I have stuck the line. Agreed a photo will help, I will try to get one up tomorrow.

[superduperwesman]

You can't have the return higher in the tank so once the water level lowers the siphon will naturally break??

[Chin_Lee]

Originally Posted by jasond

Yes, thanks Mark, that is exactly what I mean. I have a small hole/line running from the return into the emergency overflow, this is what is getting clogged.

if its the small hole thats is getting clogged there are several quick options:
1) just drill another hole
2) drill a bigger hole
3) drill another 2 holes
4) drill another 3 holes
i think you get the point.
And there seems to be some confusion on connecting a herbie to this small hole on your return...... they shouldn't really affect each other. If it is, please elaborate thanks
chin

[fishytime]

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

[JDigital]

Originally Posted by fishytime

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

+1

That's the first thing I thought of...

[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.

[jasond]

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.

This is exactly what I do, but more often than every 4-6 months, probably once a month. I use a coat hanger which works pretty well. Since adding the filter sock though, it may get clogged less, but something more permanent would be nice. A larger sump isnt an option at this point

Either way these are excellent overflows for those thinking of using one. I have had many comments on how quiet it is, and I am fairly confident in the case of a clog/powerfailure.

[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.