Barker 4-Wheel Tote-Along 16–42 Gallon: Parts & Models

Barker's four-wheel Tote-Along range includes the 16-, 25-, 32- and 42-gallon portable wastewater tanks. These units have a front swivel-wheel assembly, a pull handle and a side-mounted 3-inch dump valve. On appropriate ground, they can be wheeled to the dump station without lifting the tank to pour it out. Choose the tank by capacity, physical size and available RV storage space.

Find the right four-wheel tank by photograph

Four-wheel Tote-Along, 16 gallons

View 28191 product

Four-wheel Tote-Along, 25 gallons

View 25895 product

Four-wheel Tote-Along, 32 gallons

View 27844 product

Four-wheel Tote-Along, 42 gallons

View 30844 product

Compare factory dimensions

Barker measures these tanks with the tow handle removed and the front wheels turned 90 degrees. Allow additional space for the handle when moving the tank. The manufacturer describes pneumatic wheels for the 25-, 32- and 42-gallon models; confirm your tank's original wheel specification before ordering tire parts.

How the four-wheel components work

Original service numbers for the 25- and 42-gallon drawings

These numbers are drawn from Barker's 25- and 42-gallon manuals. They are not a universal replacement-parts list for every four-wheel tank. The 16- and 32-gallon models have separate owner manuals and should be checked individually when servicing wheels, axles, brackets or valves.

Full-tank indicator

The 26835 is Barker's separate bobber-style fill-level indicator for a compatible ¾-inch male garden-hose opening. Match the tank fitting and the original gauge arrangement before ordering it as a replacement.

Bobber full-tank level indicator

View 26835 product

Preparing to move and empty the tank

1. Before filling, inspect the 3-inch caps, valve, hose adapters and retaining straps.
2. Connect the RV waste line in the configuration shown by the correct manufacturer's manual, keeping the discharge valve closed during filling.
3. Remove the sewer hose and fit the transport cap before moving the tank.
4. Keep towing speed at or below walking pace; Barker warns that higher speed can damage the tank or wheels.
5. At the approved dump station, connect the outlet hose, open the side valve and vent the tank as specified. Flush and close it afterward.

Factory manuals and full numbered diagrams

28191 16-gallon owner's manual (PDF), 25895 25-gallon assembly and parts diagram (PDF), and 30844 42-gallon illustrated parts diagram (PDF). Barker's owner-manual library also lists the separate 27844 32-gallon manual. Original dimensions and equipment are on the manufacturer's four-wheel product page.

For the two-wheel 10-, 15- and 22-gallon versions, see the original Tote-Along parts guide. Their wheel assemblies and emptying method are different.