What is this pipe sticking out of the ground? This is a house we are buying with a fiberglass pool.
What is this pipe sticking out of the ground?
- Thread starter jake69chevy
- Start date
No idea, but I’m here to find out and guess that it’s a sump pit to pump out excess ground water. Are you near the coastline?
- May 23, 2015
- 24,465
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Show us the equipment pad.
What diameter is the pipe?
Was the pool renovated in the past? Can the previous owner share any details?
Considering the deck concrete looks weird there, I’m inclined to think that there may have been some kind of water feature there like a waterfall or pool slide and that is the old water supply pipe.
What diameter is the pipe?
Was the pool renovated in the past? Can the previous owner share any details?
Considering the deck concrete looks weird there, I’m inclined to think that there may have been some kind of water feature there like a waterfall or pool slide and that is the old water supply pipe.
To me - that looks to be about 8" in diameter - so my bet is for a sump pump to pump water from under/around the pool.
As others mentioned, it looks like a sump pump tube. If it is, it's kind of weird how the contractor did that. I have one on my fiberglass pool. It's flush with the concrete. There is a cover on it that looks exactly like the covers on the skimmers.
Are you asking me or the OP? I have never seen any water in mine. It's supposed to rain the next two days. I should look tomorrow to see if there is any.
Last edited:
- May 3, 2014
- 58,612
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
The signature shows a Bestway AG Vinyl pool. I take it the picture is not of that pool.
In Fresno CA it would be odd to have a water table issue. Though with a fiberglass pool, it may have been a precaution.
In Fresno CA it would be odd to have a water table issue. Though with a fiberglass pool, it may have been a precaution.
- May 23, 2015
- 24,465
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
What all that -
Are you on a well?
Since the back property line slopes towards the pool and the house, and the diameter of the pipe appears to be quite large, I would agree that it is likely a dewatering pipe. While Fresno doesn't typically have a lot of ground water issues, you can still get intense storms that can drop a lot of water and might require a dewatering system in place to protect the pool and house considering the slope of the property.
Are you on a well?
Since the back property line slopes towards the pool and the house, and the diameter of the pipe appears to be quite large, I would agree that it is likely a dewatering pipe. While Fresno doesn't typically have a lot of ground water issues, you can still get intense storms that can drop a lot of water and might require a dewatering system in place to protect the pool and house considering the slope of the property.
I guess from the last two replies, there isn't a national requirement for a dewatering pipe. My pool was built in 2020 and I bought the house in 2022 so I don't have the history on why my pool has one. Maybe the builder just puts them on all their pools. I don't believe there is a high water table in my situation. While my lot is flat, the rear fence is only about 5 yards from the pool and the land slopes steeply down at close to 45 degrees on the other side of the fence.
- May 23, 2015
- 24,465
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Nope.
Where I live, the water table depth is measured in HUNDREDS of feet. When you could drill a well around here (several decades ago, but not now), drillers had to routinely go 300ft or more before reaching any water and so wells could easily be 500ft deep. When it rains here, we get standing water and the dry washes become fast moving rivers until all the water dries up. A dewatering pipe would serve no purpose here.
This is a house we are looking at buying. The pic in question with the equipment is a well. The property is in Madera, CA. There is visible water in the pipe. I agree with everyone- it’s probably a sump pump out for precaution. The owner has dementia in poor health.
It appeared 3 or 4 feet down (it just rained I’ll look again when it dries up)
I’ll go fishing with a bobber this weekend so I can give exactly the depth.
The key metric is the level relative the the water level in the pool.
If the ground water level is ever higher than the pool water level, you have a net upward force, which can cause the pool to pop out of the ground based on the weight of the pool and the upward force.
If the ground water level is ever higher than the pool water level, you have a net upward force, which can cause the pool to pop out of the ground based on the weight of the pool and the upward force.
It was definitely lower than the pool water level. But I did see water. How often should that be pumped out?
