Best Ballast Pumps for Wake Boats: 2026 Comparison
Picking the right ballast pump is the single biggest choice in a wake boat retrofit. Two families dominate the market: reversible impeller pumps (Jabsco Ballast Puppy, Tsunami 1200 in reversible plumbing) and aerator pumps. Here's how they compare, and how each wires into Surf Wizard.
Reversible impeller pumps
The Jabsco Ballast Puppy is a self-priming positive-displacement pump that fills and empties through the same hose by reversing polarity. Flow: ~11 GPM. Draw: ~9 A at 12 V. No separate empty pump, no separate fill line.
- Pros: Self-priming, runs dry briefly, single hose per bag, clean install.
- Cons: Slower than aerators, impeller wears and is a wear item.
Aerator pumps
The Tsunami 1200 is a submersible centrifugal aerator: ~20 GPM, ~4 A. Not self-priming and not reversible — you need a separate pump (or a check-valve plumbing loop) to empty.
- Pros: Fast fill rate, cheap, easy replacement.
- Cons: Needs a below-waterline pickup or a dedicated empty pump; more plumbing.
How Surf Wizard drives them
The Surf Wizard bridge uses reversing relays (H-bridge style, 30 A per channel) on each ballast circuit. For an impeller pump, one channel handles both fill and empty by flipping polarity. For an aerator setup, one channel fires the fill pump and a second channel fires the empty pump — the app hides the difference.
Either way, the app enforces the same timers, sensor cutoffs, and E-Stop interlocks. Wiring diagrams and pump-specific fuse sizing live in the retrofit installation guide.
Which should you buy?
For most retrofits, we recommend Jabsco Ballast Puppy pumps: one pump, one hose per bag, no check valves. If fill speed is the priority and you have room in the bilge, pair Tsunami 1200 aerators with a dedicated empty pump per bag.