Hello dear forum community,
Are there any recommendations for garden pumps to empty a shaft about 4 meters (13 feet) deep and approximately 1 meter (3 feet) wide? The emptying needs to be done regularly.
I am not familiar with garden equipment at all.
The pump should not be placed floating in the shaft but rather stand on a solid surface, with one hose reaching into the shaft to draw water and another hose to discharge it. At least, that’s how I imagine it.
I prefer not to buy twice and am willing to spend a bit more for a product with a long service life.
Many thanks in advance!
Are there any recommendations for garden pumps to empty a shaft about 4 meters (13 feet) deep and approximately 1 meter (3 feet) wide? The emptying needs to be done regularly.
I am not familiar with garden equipment at all.
The pump should not be placed floating in the shaft but rather stand on a solid surface, with one hose reaching into the shaft to draw water and another hose to discharge it. At least, that’s how I imagine it.
I prefer not to buy twice and am willing to spend a bit more for a product with a long service life.
Many thanks in advance!
S
Scrooge McDuck28 Jul 2020 21:40This is a picture of the shaft from Saturday. At that time, nothing had emerged elsewhere yet. Currently, the water is just below the orange pipe. However, there is already a significant amount of water next to it in a deeper spot (picture 2).
P
pagoni202028 Jul 2020 21:46So, you have two basins. One inside the concrete cistern with the overflow pipe, and the other next to it, uncovered in a hole in the ground?
So the water is pushed into this open hole despite the cistern?
Hmm... I'm not really sure how you can fix that.
You should embed the red pipe properly so that the water flows only into the overflow. Then I would control it with a domestic water system, but ALWAYS and WITHOUT FAIL have a cover on the cistern. Oh dear... be very careful with that... children and untreated water...!!!!!!!!!!!!!!
So the water is pushed into this open hole despite the cistern?
Hmm... I'm not really sure how you can fix that.
You should embed the red pipe properly so that the water flows only into the overflow. Then I would control it with a domestic water system, but ALWAYS and WITHOUT FAIL have a cover on the cistern. Oh dear... be very careful with that... children and untreated water...!!!!!!!!!!!!!!
S
Scrooge McDuck28 Jul 2020 21:51If the shaft isn’t too full, there is no water in the underground pit. Actually, no water should come up there in the first place.
I plan to pump the shaft empty tomorrow and see if the water in the pit evaporates fairly quickly.
What is the best way to coat the red pipe? I mean, with what should I do that? The excavator said it’s fine as it is... but I can manage it.
I plan to pump the shaft empty tomorrow and see if the water in the pit evaporates fairly quickly.
What is the best way to coat the red pipe? I mean, with what should I do that? The excavator said it’s fine as it is... but I can manage it.
1. Test: when you pump out the shaft, does the puddle empty as well?
2. Do you have sandy or clay soil?
3. Where does the overflow lead to?
4. When you pump into the overflow, do you hear water rushing out of the inspection chamber from the wastewater?
5. Are you surrounded by mountains or flat land?
6. Was there swamp grass, a pond, or muddy ground on the empty building plot?
2. Do you have sandy or clay soil?
3. Where does the overflow lead to?
4. When you pump into the overflow, do you hear water rushing out of the inspection chamber from the wastewater?
5. Are you surrounded by mountains or flat land?
6. Was there swamp grass, a pond, or muddy ground on the empty building plot?
S
Scrooge McDuck28 Jul 2020 22:062. Clay soil
5. Rheinhessen table and hill country
6. No mud, pond, or anything similar. Soil sample did not reveal anything unusual either. However, the earth beneath the topsoil was saturated with water. The earthworks contractor pumped out the foundation pit in the evening, but by morning there was a small pond again at the bottom.
I hope to answer the other points tomorrow.
5. Rheinhessen table and hill country
6. No mud, pond, or anything similar. Soil sample did not reveal anything unusual either. However, the earth beneath the topsoil was saturated with water. The earthworks contractor pumped out the foundation pit in the evening, but by morning there was a small pond again at the bottom.
I hope to answer the other points tomorrow.
HausiKlausi28 Jul 2020 23:30I would find it difficult to take any measures without knowing the source of the water. I’m not a hydrologist or anything like that, but if you pump out large amounts quickly, it can cause other problems. Groundwater layers, for example, will keep flowing in—and may even lead to unwanted side effects (possibly even much more water will flow in because water tends to follow the path of least resistance). Otherwise, in a similar setup (rainwater from the roof), we have a submersible sewage pump from Homa. It is absolutely reliable and nearly silent.
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