Water Tanks
Shop freshwater storage tanks at West Marine.
If your boat’s water tank has seen better days and needs to be replaced, or if you want to upgrade the one you already have, West Marine has you covered with a selection of flexible and rigid water tanks.
Rigid or Flexible?
West Marine offers rigid polyethylene and flexible nitrile and PVC bladder-style boat water tanks. When shopping for a freshwater tank, consider the shape and size of the space where it will be installed. Rigid freshwater storage tanks are made of polyethylene that is rated for storing potable water. These tanks meet or exceed US Coast Guard requirements for water storage and—when paired with appropriate hoses, fittings and a freshwater pump—will supply your boat with clean-tasting fresh water.
For locations where a rigid water tank won’t fit, consider installing a flexible freshwater storage tank. Flexible plastic water bladders are a good choice for augmenting the amount of water you carry onboard which makes them popular among long distance ocean cruisers. The flexible water tanks sold by West marine are made of either nitrile or PVC. They have reinforced seams and sturdy rip- and tear-resistant linings.
Available Sizes
With rigid and flexible tanks ranging from 13- to 55-gallon capacities, you most likely will find what you need. The capacity of the water tank you select should be based on how you use your boat and of course on the shape and size of the space where it will be installed.
Water Tank Accessories
To help you with your water storage tank installation, West Marine offers a variety of water tank plumbing accessories, including hose relocation kits and pipe-to-hose-adapter kits. Hose relocation kits allow you to seal existing ports on your rigid water storage tank and place them where needed for use in your boat. Pipe-to-hose adapter kits provide what you need to connect the hose to your tank to easily get water flowing throughout your boat.
For a helpful diagram of a typical marine freshwater system and a general overview of what to consider when assembling a water system on your boat, we suggest you read our West Advisor article Pressurized Freshwater Systems.