Installation Guides
Step-by-step installation guides for ballast bags, pumps, and full system upgrades. Photos, diagrams, and downloadable references.
Installing ballast right the first time saves hours of troubleshooting later. The chapters below cover boat-specific upgrades for Malibu, Supra, Moomba, Nautique, and MasterCraft, plus general guides for ballast bags, pumps, and impellers. Each guide includes the tools you need, the order of operations, and the gotchas that catch first-time installers.
Chapters in this section
Malibu DoubleDecker Ballast Upgrade (2003-2011)
Add rear locker ballast bags to your factory hard tank system using the piggyback method. Ties directly into factory fill and drain - no extra switches, no separate pumps.
Read guide →Supra & Moomba Gravity 3 Ballast Upgrade (2002-2008)
Replace the tired factory Gravity 3 system with a modern 3-pump reversible setup. Faster fills, cleaner drains, and no more nursing along leaking fittings and weak pumps.
Read guide →Nautique Tank Buster Ballast Upgrade (1999-2002)
Upgrade your factory hard tank Nautique to a modern bag-based ballast system. Step-by-step routing diagram, color-coded plumbing, and bag orientation reference.
Read guide →MasterCraft X Series Rear Ballast Upgrade (2006-2013)
Replace the factory vent/overflow hose with a plug-and-play adapter assembly that connects auxiliary ballast bags to your rear hard tanks. 15–30 minute install per side, no permanent modifications.
Read guide →Ballast Bag Installation
How to install steel shot bags and vinyl water bags in your boat. Locker placement, securing the bag, plumbing connections, and pre-launch checks.
Tsunami Pump Installation
Replace or upgrade your factory ballast pump with a Tsunami. Wiring, mounting, plumbing, and the troubleshooting checklist before first run.
Impeller Replacement
When and how to replace a worn ballast pump impeller. Symptoms of a failing impeller, the right replacement part, and the install in under 15 minutes.
Full Ballast System Diagram
A complete reference of how the bag, pump, fittings, and gate valve connect on a typical wake boat. Includes annotated diagrams and a parts list.
Need parts for your install?
Browse Tsunami pumps, impellers, fittings, and ballast accessories - everything you need for a clean install.