Showing posts with label deep well. Show all posts
Showing posts with label deep well. Show all posts

Wednesday, October 7, 2020

Day 27: Our water well is now working!

After digging for over a week through rock-like strata (which our well digging contractor called "adobe"), we temporarily stopped the job after reaching a good water-bearing depth of just over seven meters . 

We used two sizes of electric-driven jackhammers - the smaller one weighs about 10 kg, while the larger one is over 15 kg - to break through the hard layers, as using a crowbar manually is ineffective. 

Each morning, the recharged well has a water depth in excess of 3 meters (equivalent to about 2,400 liters of water). We took out this accumulated water with a 2 HP submersible pump so we can continue digging with jackhammers. We stopped digging at just over 7 meters because the little streams of recharge water coming from fissures in the rock-like layers is quite strong. Our jackhammer is clad in plastic sheets, but the danger of electric shock is too great for us to continue. 

We plan to extend the depth of the well in early summer, when the water table has subsided enough for us to dig safely. Meantime, we now have enough water to sustain our building jobs.

 


 

Friday, September 25, 2020

Digging a Deep Well at the Orchard

To assure a steady supply of water at the orchard, we started digging a deep well today, September 25, 2020. Mang Boy, the digging contractor, estimates that their rate of progress will be about a meter per day. 

Based on the depth of the driven pipe for the water pump nearby, we expect to finish digging at a level of about 16 - 17 meters below the ground. This job should take about 3 weeks, as the manual digging becomes tougher as the well gets deeper. 

Their digging and concrete lining method are very interesting. Once they have dug about a meter, they place a steel form then fill the sides of the well with mortar. 

This step-by-step digging/lining with mortar continues downward until a good level of water is reached. In the future, when the water level subsides (especially in summer), they can easily extend the well deeper and the concrete casing further, while maintaining a constant well diameter.