Johnson Pumps Shower & Sink Drain Pumps
Johnson Pumps Shower & Sink Drain Pumps: Marine-Grade Drainage You Can Trust
When it comes to managing greywater aboard a vessel, few names carry the weight of Johnson Pumps. With over eight decades of engineering reliable, high-performance marine pumping solutions, Johnson is a brand that boaters and boat builders alike turn to when dependability is non-negotiable. Their Shower & Sink Drain Pumps are a natural extension of that legacy — purpose-built to handle the unique drainage demands of life on the water.
Purpose-Built for the Modern Vessel
Johnson's compact shower sump systems are designed to meet the higher demands of today's boating industry, handling wastewater from showers, dish-washing machines, galley sinks, and more. As vessel amenities have expanded, so too has the complexity of onboard plumbing — and Johnson's shower drain pumps are engineered to keep pace with those demands.
The Shower Sump Multiple Port system is designed to efficiently manage wastewater from multiple sources aboard your vessel, with automatic operation and a compact design that ensures clean, odor-free drainage with minimal maintenance. This multi-inlet capability makes it ideal for larger cabins or heads where more than one drain line needs to feed into a single pump system.
Ultima Switch Technology & Smart Automation
One of the standout features of Johnson's shower sump lineup is its intelligent switching. The shower sump turns on and off automatically using Johnson's proprietary Ultima Switch technology — eliminating the need for manual intervention and reducing the risk of overflow or standing water in the bilge. A check valve on the outlet stops water from flowing back into the tank, the tank features a tight-fitting lid to minimize splashing and odors, and the system includes an easily removable mesh filter to aid in cleaning.
Engineered for Marine Environments
Johnson Pump Marine products deliver maximum effectiveness while drawing minimal power and supporting low-noise operation — qualities that matter just as much in a shower sump application as they do in a bilge pump. Corrosion-resistant materials specifically selected for marine environments, sealed motor housings that protect electrical components from moisture, and energy-efficient designs that minimize battery drain are hallmarks of the Johnson engineering philosophy baked into every product they make.
Self-priming technology allows for flexible installation and easy operation, while compact, space-saving designs make optimal use of tight marine environments. These traits are especially valuable in shower and sink drain applications, where installation space is often limited and access for servicing can be challenging.
A Brand Trusted by OEMs and Aftermarket Boaters Alike
Renowned for advanced impeller technology and other key innovations, Johnson Pump Marine — part of the SPX FLOW group — drives forward pump engineering for the marine application segment. Johnson Pump's influence extends throughout the global marine industry, and as an OEM supplier to leading boat manufacturers, their pumps are integrated into thousands of new vessels annually. That same quality and reliability is available to the aftermarket boater looking to upgrade or replace their existing shower drainage system.
Whether you're outfitting a new build or replacing a worn system on an existing vessel, Johnson Pumps' Shower & Sink Drain Pumps offer a proven, low-maintenance solution backed by decades of marine engineering expertise. Explore the full breadth of the Johnson Pumps brand to discover how their complete line of marine fluid management products can work together aboard your vessel.