Balancing tank
Definition
A buffer reservoir between a recirculated splash pad's drainage and its main recirc tank that catches surge flow and lets debris settle before treatment.
Balancing tanks (sometimes called surge tanks) absorb the burst of water that drains off a pad when many features fire at once, preventing the main treatment loop from being overwhelmed. They also act as a settling chamber where heavier debris drops out before water reaches filters.
Properly sized balancing tanks turn over every 30–60 minutes during operation. Undersized tanks are a chronic source of chemistry instability — operators chase chlorine and pH all day instead of holding steady values.