Permafloat Marine Lift Tank

Permafloat Marine Lift Tanks
Lift tanks are designed to temporarily lift floating dock sections to allow for repair and replacement of floats as well as for other temporary lift applications using air-filled floats. Our lift tanks are a hollow one-piece rotationally molded part that acts as an air tank. You can fill with water to submerge and then re-float by evacuating the water via air pressure. The shell is made of extra strong virgin polyethylene containing ultraviolet inhibitors, which is available in our standard .300" nominal thickness or heavy wall .375" nominal thickness. This tough shell helps prevent damage from the sun, salt water, fresh water, debris, oil, gas, and marine organisms. Typically the tank outlets on the bottom are shipped uncut and sealed ,unless otherwise specified, to allow each customer to utilize only the outlets needed for their specific application.

Product Highlights:

• Lift tanks can be used to elevate docks or dock fingers to allow for float replacement.
• Virtually maintenance free.
• Features uniform, consistent thickness throughout the tank.
• Molded-in mounting slots and holes for simple and durable mounting.
• 1" NPT threaded insert for commercial fitting.
• 3" diameter molded-in outlets in bottom for water intake and exhaust (shipped uncut & sealed)
• 100% tank tested for integrity.
• Destructive puncture and thickness testing performed for each production run.
• Available in three standard sizes, plus a wide variety of custom sizes.
• For use on residential dock repairs and light commercial dock repairs.

Special Order Item: This item is made-to-order and is non-returnable. For full details, please see our return policy.

Most in-stock items ship within 1 business day from our Florida warehouse. Transit times vary by location — refer to our Shipping & Returns page for details.

We accept returns within 30 days of purchase. Items must be unused and in original condition. Please contact sales@dockbuilders.com for return authorization or assistance.