Mystery tube between pump outlet and pool return???

[Hippo2542]

Does anyone know why the pipe after the pump outlet (before the multiport valve) would be connected to the return with a small (0.25 inch dia.) tube (black tube in picture)??? I'm going to put in a SWG and want to make sure I can get rid of the tube...
[attachment=0:18q5jfx7]setup_old.jpg[/attachment:18q5jfx7]

 

[Isaac-1]

My guess is it is a bypass where a feeder tube was installed for a chlorine or acid feed system, like the Liquidator or similar

 

[PJ]

Issac-1 is right. It was probably where a chlorinator used to go and instead of replacing the pipes with the holes drilled in them, they just ran a straight piece of chlorinator hose.

 

[Hippo2542]

Makes sense, thanks for letting me know. I'm going to get rid of the pipe with the hole in the return line to install a SWG. Is there a good way to plug the hole in the pipe between the pump and filter?

 

[JamesW]

There are several ways. You could drill and tap the hole, and put in a plug. You could cut the pipe and use a coupling. You could cut a coupling in half, and then in half again lengthwise to make a patch piece. Glue the patch piece over the hole. Use a clamp to hold the patch piece until the glue dries.

 

[duraleigh]

VERY nice tips, JamesW.