How to winterize this inlet/outlet?

flyingpenguin

New member
Oct 22, 2022
1
Connecticut
Hi all!

We recently bought a home in Connecticut with a pre-existing pool, and are now trying to winterize it for the first time. We already managed to blow out the skimmers and returns, but we're struggling with what to do with this additional inlet/outlet on the wall of the pool. Does anyone know what the name of this inlet/outlet is, it's function, and how to keep water out of it?

The part seems to connect to a separate set of pipes, presumably for a spa area that doesn't exist. There's an old, disconnected pump next to it. I managed to blow out the pipes where it used to connect to the pump, but the water/air doesn't seem to directly come out of the two jets in the fitting, but instead somewhere in the are behind it in the upper & lower portion. Also seems like it hasn't been blown out in a while, because a decent number of mice skeletons came out when we did :-/.

Not quite sure what to do at this point:
  • Plugging the jets doesn't do anything; all the water/jet/mice skeletons comes out of the top & bottom in the back instead
  • Can't airlock it for now, as the pump on the other side is disconnected. Might be able to reconnect it, but not sure if that seal would be good enough, or how much air would actually stay in the pipe.
  • Could try disassembling it further, but not sure if that is the way to go
  • I could try lowering the water level below that fitting, but I'm worried that it'll wreck havoc on the retractable pool cover
Let me know if anyone knows what the name/model # of this fitting is. I'm having a hard time finding it anywhere.

Thanks!
 

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Here is my guess.

Those nozzles are spa venturi jets with an air intake. The knob above it is to adjust the air intake.

When you plug the nozzles the air comes out the venturi air intake. The air intake prevents any air lock pressure in the pipes.

All you can do it blow out the water as you have and plug the nozzles.
 
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