flowchart subgraph Implementation 1ab direction TB A[Borehole] ⇒ B[Water Testing] end subgraph Implementation Phase 1C direction TB C[Temporary Seal] C ⇒ D[Hand Pump] D⇒ F[Concrete Seal] end subgraph Implementation Phase 2a subgraph A direction TB G[Borehole #2]⇒ H[Electrical Connection/Breaker] H⇒I[Electric Pump] end end B⇒ C F⇒G