This is a fascinating conversation! It's incredible to hear firsthand about the challenges and resilience of fire protection professionals in Ukraine during the war. The war has significantly impacted the fire protection industry in Ukraine. Work initially stopped completely, and even after resuming, projects are scarce, focusing mainly on critical infrastructure. Many professionals have joined the military or shifted to designing and installing air raid warning systems. Ukrainians have adapted to a life of constant air raid sirens and the threat of missile attacks. They've developed routines and algorithms for how to respond to these threats, demonstrating remarkable resilience. Obtaining fuel, maintaining staffing levels (with many men fighting in the war), and the psychological impact of living under constant threat are major challenges. The hardest thing to adapt to is the fear and uncertainty of missile attacks.There have been some improvements since the start of the war. Fuel and food are available, and the economy is slowly recovering. There's a sense of hope and determination, with a strong belief in eventual victory. The focus has shifted from civilian construction to protecting critical infrastructure. There's a growing need for air raid warning systems, leading fire protection companies to expand their services. The Ukrainian fire protection professional shares a personal story of his father going missing in action, highlighting the human cost of the war. They primarily use welded steel pipes for fire sprinkler systems, with grooved couplings (like Victaulic) used less frequently due to cost. Water for fire suppression is kept separate from other water systems, and they don't seem to use backflow preventers in the same way as in the US. Typical static pressure in Ukrainian fire sprinkler systems is 2-5 bar (roughly 30-70 psi). Fire pumps boost the pressure to 5 bar or higher, depending on the system's needs, Pump sizes vary based on hydraulic calculations, with flow rates ranging from 10 to 70 cubic meters per hourThis conversation provides a valuable glimpse into the lives of Ukrainians during wartime and the specific challenges faced by those in the fire protection industry. It highlights their resilience, adaptability, and unwavering hope for the future.