On many farms like ours, submersible pumps are the lifeline — especially during the dry season. We use deep well water every day to irrigate durian trees, vegetables, and fruit crops. But have you ever checked what’s actually in that water?

Let’s break down the real benefits, hidden risks, and smart ways to manage submersible water — using actual data from our own farm.

📊 Real Water Test from Our Farm (Deep Well)

• ✅ EC (Electrical Conductivity): 0.75 mS/cm = 750 µS/cm

• ✅ TDS (Total Dissolved Solids): 340 ppm

• ✅ Water drains quickly in soil after irrigation

This means the water is low to moderate in salt content, safe for daily use, but can slowly build up minerals in the root zone if not managed well.

✅ Benefits of Submersible Water (Real-Life Experience)

1. Consistent Supply, Even in Dry Season

Submersible pumps reach deep groundwater — no worries about drought. Our trees and vegetables never go thirsty, even when rain stops for weeks.

2. Naturally Filtered Water

Deep well water is cooler and cleaner than canal or surface water — fewer pathogens, less smell, and no mosquito issues.

3. Safe EC for Most Crops

With EC of 0.75 mS/cm, our water is safe for:

• Durian trees

• Eggplant, bitter gourd, ivy gourd

• Nursery seedlings (with occasional rainwater flushing)

⚠️ Risks of Long-Term Use (What We Noticed)

Even though the water drains well, we know that:

1. Salt Accumulation Over Time

Daily irrigation = daily salt input. Minerals from water (calcium, sodium, iron) don’t evaporate — they stay in the soil and build up.

This can slowly:

• Stress roots

• Cause yellowing leaf tips

• Reduce nutrient uptake

2. Interaction with Chemical Fertilizer

If you add NPK too often along with submersible water, the combined salt load may be too high.

🛠️ Solutions We Use to Prevent Salt Build-Up

✅ 1. Monthly Soil EC Check

Use a simple EC meter. If runoff water from the soil reads:

• >1.5 mS/cm → time to flush

• >2.0 mS/cm → urgent flushing needed

We do this monthly.

✅ 2. Flush with Clean Water

Every 3–4 weeks, we flush durian trees using:

• Stored rainwater

• Low EC surface water
  This helps remove excess salts from the root zone.

✅ 3. Organic Buffering (Our Mix)

We improve the soil around trees by mixing:

• Red clay soil + palm fiber + cow manure

• Mulch using dry leaves or rice husk

This keeps the root zone soft, airy, and salt-buffered.

✅ 4. Microbial Support

We apply a rotation of:

• PSB (Photosynthetic Bacteria) – dissolves minerals

• LAB (Lactic Acid Bacteria) – boosts healthy root microbes

• Trichoderma – protects roots and improves soil structure

✅ 5. Smart Use of Humic Acid

We apply humic acid once every 2–3 weeks, not weekly.

• 10 ml per liter (liquid)

• Or 50–100g (granule) per tree per month

Too much humic = locked nutrients, so we apply just enough.

🌿 Conclusion

Submersible pump water is a powerful tool for farming — but don’t let it silently build up salts in your soil. With real EC tracking, flushing, organic buffers, and microbial balance, you can use it daily without hurting your trees.

On our farm, we’ve used these steps to grow strong, healthy durians and vegetables — even with deep well water, every single day.