Pugod Integrated Aquaponic System

Nana Bambi's Place · Ragay, Camarines Sur, Bicol · Technical Diagrams

Diagram 1 — Pugod Hillside Profile & Water Cascade

Cross-section view · River intake to river return · Off-grid throughout · 12m elevation change

RIVER MICRO-HYDRO TURBINE LIFT PUMP — WATER LINE UP SLOPE TROLLEY TILAPIA PONDS 5,000L · HIGH WALLS · CONTROLLED WEIR NURSERY POND FINGERLINGS SWIRL FILTER → compost SANDPONIC BEDS — HOOP HOUSE IBC HALVES · COARSE SAND · 2× DAILY DOSE FEED ∿ ULANG TARO 1 · 3,000L TARO 2 · 2,500L TARO 3 · 2,000L POLISHING · 2,000L LOTUS · WATERCRESS RETURN CLEANER SOLAR ARRAY BATTERY BANK ≈ 12m ELEVATION CHANGE LEGEND Water flow Power line Rail winch track Fish ponds Taro terraces Hoop house / beds NANA BAMBI'S PLACE · PUGOD, RAGAY · DIAGRAM 1: HILLSIDE PROFILE AND WATER CASCADE SYSTEM

Diagram 2 — Sandponic Hoop House · Technical Cross-Section

End elevation + longitudinal section · IBC half-tank beds · Typhoon-rated frame · 40ft module shown

END ELEVATION looking along the house length SAND MEDIA AISLE 600mm SAND MEDIA CARROT DOSE FEED · 2×/DAY DOSE FEED · 2×/DAY 1,000mm 600 1,000mm 2,600mm total 400–500mm ≈ 3,000mm ridge height 40mm OD Sch.40 galv. steel hoop Purlins — 25mm RHS Knee brace — 32mm RHS diagonal Shade cloth — 50% UV · tied at every purlin IBC half-tank — forklift/tractor moveable Coarse river sand — 400–500mm depth Drain hole — always open — no valve Drain tray — single pour — consistent fall Concrete footing 300mm deep X-bracing — end wall panels LONGITUDINAL SECTION — 40ft MODULE (12.2m) view along the width of the house FALL → TO DRAIN OUTLET DRAIN → taro beds DOSE FEED HEADER PIPE — FROM SWIRL FILTER OUTLET 12,192mm (40ft) 1,524mm (5ft centres) NANA BAMBI'S PLACE · PUGOD, RAGAY · DIAGRAM 2: SANDPONIC HOOP HOUSE TECHNICAL CROSS-SECTION

Diagram 3 — Taro Terrace Detail · Lo'i Style Construction

Cross-section through the slope · Ifugao / Hawaiian lo'i tradition · Slow water principle · Ulang channels · Cultural context

WEIR TERRACE 1 3,000L · GABI HEIRLOOM VARIETIES TERRACE 2 2,500L · ULANG CHANNELS · KANGKONG TERRACE 3 2,000L · WATERCRESS INLET CHANNELS POLISHING POND 2,000L · LOTUS · SUBMERGED PLANTS · FINAL STRIP TO CREEK → RIVER RETURN WATER ↓ Nitrates ↓ Phosphates ↑ Dissolved oxygen ELEVATION DROPS — GRAVITY FEEDS ALL STAGES CULTURAL FOUNDATION — THIS IS NOT A FOREIGN SYSTEM The Ifugao, Bontoc and Kalinga peoples of the Cordillera built gravity-fed flooded taro terraces identical in principle to this design — over 2,000 years before rice displaced taro as the primary terrace crop. The Banaue terraces are a UNESCO World Heritage Site. The Hawaiian lo'i kalo shares the same Southeast Asian ancestral origin. Bringing this system to Bicol is a homecoming. PALAYABAB: Raising fish and prawns in taro paddies — a pre-colonial Filipino practice being revived here. BUND WALL DETAIL Compacted earth + concrete cap water level 150–200mm flood depth per terrace NANA BAMBI'S PLACE · PUGOD, RAGAY · DIAGRAM 3: TARO TERRACE DETAIL — LO'I STYLE · IFUGAO / HAWAIIAN TRADITION

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Technical Schematic Diagrams

System flow schematics and component layouts

Diagram 1 — Full Water System Cascade

River intake → tilapia ponds → grow beds → taro terraces → ulang channels → river return  ·  Off-grid power throughout

HIGHEST POINT — TOP OF SLOPE LOWEST POINT — CREEK / RIVER RETURN RIVER INTAKE Highest flow volume point on farm boundary Baseline water quality test conducted here LIFT PUMP — 12m RISE TILAPIA PONDS 5,000L main pond — high walls 600mm+ freeboard — controlled overflow weir Nile tilapia + fingerling nursery pond GRAVITY DRAIN SWIRL FILTER Passive — no moving parts Solids → compost · Clean water → beds 2× DAILY DOSE FEED SANDPONIC GROW BEDS Hoop house — shade cloth — typhoon rated IBC halves — 400–500mm sand media Bottom always open — continuous drain GRAVITY DRAIN — ALWAYS OPEN TARO TERRACES Hawaiian lo'i style — 4 staged ponds 3,000L → 2,500L → 2,000L → 2,000L Heirloom gabi · overflow lip to lip STAGED OVERFLOW ULANG CHANNELS Macrobrachium rosenbergii — freshwater prawns Feed on detritus · ₱400–600/kg · zero input GRAVITY OVERFLOW POLISHING POND Lotus · watercress · submerged plants Final nutrient strip — return water ready WATER QUALITY What improves at each stage Intake: unknown quality Baseline test establishes zero ✓ Fish waste = nitrates ✓ Controlled biological load ✓ No chemical inputs begin here ✓ Suspended solids removed ✓ Cleaner than intake already at this stage ✓ Nitrates stripped by roots ✓ Phosphates reduced ✓ Sand = biological filter ✓ DO raised by aeration ✓ Mechanical filtration ✓ Nutrients → taro biomass ✓ Water slows — zero erosion ✓ 4 stages of nutrient uptake ✓ Bund walls stabilise soil ✓ Detritus consumed ✓ Algae managed naturally ✓ Organic matter converted to harvestable biomass ✓ Final nutrient strip ✓ DO higher than intake ✓ Nitrates lower than intake ✓ Phosphates lower than intake ✓ Zero chemical traces → RETURN WATER CLEANER THAN INTAKE WATER Parameters: DO, pH, suspended solids, nitrates, phosphates, turbidity, coliforms OFF-GRID POWER SYSTEM Zero mains power — fully independent MICRO-HYDRO TURBINE River current → continuous generation 24hrs/day · weather independent BASELOAD SOLAR ARRAY Supplementary daylight generation Tops up battery · low-flow backup BATTERY BANK Overnight buffer + pump surge capacity 12V / 24V DC distribution POWERS ALL LOADS POWERED LOADS → River lift pump (12m rise) → Tilapia pond air bubblers → Swirl filter flush pump → Bed dose feed pumps (2×/day) → Transfer pumps between stages → Rail winch (slope haulage) → Monitoring and control systems → Workshop and utility lighting All low-draw DC where possible No conversion losses to AC RAIL WINCH SYSTEM Concrete sleeper rail — 12m grade Cable winch powered by battery bank Moves harvest · feed · equipment · fish ─── Water flow ─── Power flow GREEN = food production zone TEAL = water treatment zone NANA BAMBI'S PLACE — PUGOD, RAGAY — DIAGRAM 1: FULL WATER SYSTEM CASCADE

Diagram 2 — Sandponic Hoop House Cross-Section

IBC half-tank grow beds · drain tray · shade cloth frame · typhoon bracing detail · 40ft module shown

GROUND LEVEL — CONCRETE SLAB / COMPACTED BASE END VIEW Ground stake + footing Purlin Shade cloth Knee brace Steel hoop — 40mm OD Sch40 End wall X-brace SIDE / CROSS-SECTION VIEW DRAIN TRAY — single component — consistent fall across full length DRAIN → taro beds COARSE RIVER SAND 400–500mm depth IBC HALF-TANK — BED 1 1000mm wide (40 inch) AISLE 600mm COARSE RIVER SAND 400–500mm depth CAR IBC HALF-TANK — BED 2 1000mm wide (40 inch) 1000mm 600mm 2600mm total width 400– 500mm DOSE FEED INLET Timed 2× daily · calculated volume DOSE FEED INLET Per bed · per crop type calculation HOUSE LENGTH: 20ft (6.1m) or 40ft (12.2m) modules — aligns with container dimensions IBC HALF-TANKS: forklift / tractor moveable · easily cleaned · emptied · refilled Bottom drain always open — constant passive gravity flow — no valves — nothing to fail NANA BAMBI'S PLACE — PUGOD, RAGAY — DIAGRAM 2: SANDPONIC HOOP HOUSE CROSS-SECTION

Diagram 3 — Staged Taro Terrace Cascade (Lo'i Style)

Hawaiian lo'i inspired · Cordillera Ifugao tradition · 4 staged ponds down the slope · slow water at every transition

▲ HIGHEST POINT — SANDPONIC BED DRAIN INLET ▼ LOWEST POINT — CREEK / RIVER RETURN FROM SANDPONIC GROW BEDS Nutrient-rich drain water — 2× daily volume ∿ ulang channels TARO TERRACE 1 — 3,000L — OVERFLOW LIP TO NEXT STAGE OVERFLOW LIP — WIDE SHALLOW SLOWED OVERFLOW ∿ ulang · kangkong in channels TARO TERRACE 2 — 2,500L — OVERFLOW LIP OVERFLOW FURTHER SLOWED TARO TERRACE 3 — 2,000L — OVERFLOW LIP ∿ watercress in inlet channels · ulang harvest zone OVERFLOW POLISHING POND — 2,000L — LOTUS · SUBMERGED PLANTS Final nutrient strip · dissolved oxygen raised · NO chemical traces · return water ready WATER HERE IS MEASURABLY CLEANER THAN RIVER INTAKE ELEVATION DROPS DOWN THE SLOPE — GRAVITY DRIVES EVERYTHING NANA BAMBI'S PLACE — PUGOD — DIAGRAM 3: STAGED TARO TERRACE CASCADE — LO'I STYLE

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