I just got 2 new Tunze nanostream 6045 powerheads. I also bought an Ocean Pulse Duo wavemaker which alternates the powerheads at various intervals.
My concern is when each pump turns on it makes a ratcheting sound (almost like gears grinding). It only happens for about a second or less. Is this normal?
My concern is when each pump turns on it makes a ratcheting sound (almost like gears grinding). It only happens for about a second or less. Is this normal?