Ключевые слова: activity, aqua, aquatics, blue, bubbles, cascade, clear, conservation, construction, drain, energy, engineering, facility, flowing, fountain, fun, group, hydrodynamics, infrastructure, irrigation, jet, leisure, liquid, maintenance, motion, movement, outdoor, pipe, plumbing, pool, poolside, recreational, refreshing, repair, ripples, splash, splashing, spouting, stream, summer, supply, swim, system, transparent, treatment, water, wet,