There’s a capped 2 inch pipe sticking a couple feet out of the ground. I have no idea what it’s for, and neither does my pool guy. The equipment is around the corner from this behind the short wooden fence you can see on the picture. I cut the cap off the pipe and ran some water down the pipe, to see if I could see it go anywhere like the curb but it just vanished to nowhere. I theorize that the old homeowner moved the pool equipment from this location, and this could be a remnant pipe from the old system… Anybody have any idea what this is for? Can I cut it down low and cap it off or bury it?
Mysterious 2 inch pipe
- Thread starter itsaaron
- Start date
- May 23, 2015
- 24,446
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Does your pool have a single main drain?
If so, don’t cut that pipe as it could a suction limiting vent pipe.
When you cut the cap off the pipe, was there a small slit in the PVC or some kind of vent hole??
If so, don’t cut that pipe as it could a suction limiting vent pipe.
When you cut the cap off the pipe, was there a small slit in the PVC or some kind of vent hole??
- Jul 21, 2013
- 52,881
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Welcome to TFP.
Do you have a spa on your pool?
IT could be an air intake to venturi jets in your pool or spa. Or it could be a suction limiting vent pipe that is required in some jurisdictions.
Do you have a spa on your pool?
IT could be an air intake to venturi jets in your pool or spa. Or it could be a suction limiting vent pipe that is required in some jurisdictions.
Thanks for responding! I think you could be right.
YES! The pool has two main drains.
I did not see a vent on top of the cap. There is a drywall screw in the top of it. It looks totally sealed off.
It looks like it could be the suction limiting vent pipe! Should I leave it uncapped or put a special cap with a vent on it?
Attachments
YES! There is also a spa. The spa has a main drain, seperate booster pump with its own suction that somehow ties into the return jets, and an air blower.
It might not have anything to do with the pool.
All we can do is speculate.
If you put water in the line, does it come out from anywhere in the pool?
All we can do is speculate.
If you put water in the line, does it come out from anywhere in the pool?
- Jul 21, 2013
- 52,881
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Have you tried running the spa air blower with that pipe uncapped?
If they relocated the equipment that may be the old spa blower pipe that they connected to and ran a new pipe.
There is no way for us to guess at the function of that pipe better then you.
I woudl leave well enough alone and assume if the pipe could have been removed someone would have done it before you..
If they relocated the equipment that may be the old spa blower pipe that they connected to and ran a new pipe.
There is no way for us to guess at the function of that pipe better then you.
I woudl leave well enough alone and assume if the pipe could have been removed someone would have done it before you..
You are right, I am not sure if it has anything to do with the pool or not! But is 2" so it makes be think it could be pool related.
Its definitely not connected to my storm drains, because when I stuck a hose down it, ran for 15 minutes, and couldn't see any water flowing to the curb out of the landscape discharge line. Id have to like drain the pool I would think, to see an effect in the pool? I put my ear on the pool equipment pipes and didn't hear any flow of water. How would you test it?
I don't think that it is a suction limiting vent.
There is not enough information to make any conclusions at this point.
That's a landscape path light. Its currently turned on and alternating colors. Having some work done in the backyard at the moment and it was being tested.
There are two pool main drains. I havent seen a suction limiting vent before in any pools in the area. This is in Dallas, TX by the way. Here is a photo of the pool drains.
Attachments
Maybe get a plumber or pool person to see if they can figure it out.
I don't think that it goes to the pool, but I don't know for sure.
I don't think that it goes to the pool, but I don't know for sure.
Suction limiting vents are mostly used in Florida, but they can be used almost anywhere.
Maybe ask the pool builder if it goes to the pool.
Maybe ask the pool builder if it goes to the pool.
I will try to run the blower with the pipe uncapped and see if I feel air flowing out of it.
I honestly have no idea what this pipe is-- I tested it by running water down it. Just looking for ideas-guesses from you guys or ways to test it.
I did a big renovation on this house and there was tons of old water lines, pipes, old landscape lights/features that I had removed/repaired and this is one of the last things left that is still a mystery. I'd rather delete it if it serves no purpose.
- May 23, 2015
- 24,446
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Well, you could dig down and see what the pipe attaches to … 
UPDATE-
Blower- Turned on the blower and no air felt going into or out of the PVC pipe.
Pumps - Turned on all pumps and no water coming out of the PVC pipe.
Pool functioning fine with the PVC pipe capped or uncapped.
So, I either think its tied into my sewer line or its a suction limiting pipe which was capped for some reason. To me not worth digging done to see where it goes. Thats going to create a bunch of mess and Id have to reinstall the turf.
Blower- Turned on the blower and no air felt going into or out of the PVC pipe.
Pumps - Turned on all pumps and no water coming out of the PVC pipe.
Pool functioning fine with the PVC pipe capped or uncapped.
So, I either think its tied into my sewer line or its a suction limiting pipe which was capped for some reason. To me not worth digging done to see where it goes. Thats going to create a bunch of mess and Id have to reinstall the turf.
Probably goes to the sewer line, but we really have no idea.
If it was a suction limiting vent, you would see water coming out at the main drains and skimmers and in the pump basket when you put a hose in the pipe.