Valterra Ell Double Rotating Valve - Mess-Free RV Waste Drain

In this review the Valterra Ell Double Rotating Valve is evaluated as a practical, no-nonsense solution for RV owners who want to cut the time and fuss of emptying waste tanks. It combines a 1.5 in and a 3 in valve in a single rotating assembly so users can drain gray and black water at the same time, which is the single biggest reason to consider this part. The integrated bayonet cap and durable black ABS construction make it a straightforward replacement or upgrade for many standard RV, camper, and trailer setups.

Key Features

• Dual valve design: Combines a 1.5 in waste valve and a 3 in waste valve so both gray and black tanks can be drained simultaneously, saving time at the dump station.
• Mess-free operation: The rotating valve mechanism keeps connections contained at the mounting point, reducing splashes and hands-on contact during emptying.
• Integrated bayonet cap: A bayonet-style cap covers the lug fitting when not in use, protecting the connection from dirt and road grime.
• Durable construction: Made from black ABS plastic for a sturdy, weather-resistant part built to last through regular RV use.
• Versatile fit: The 3 in x 1.5 in hub attachment fits many standard RVs and can be used as a replacement or upgrade for existing valves.
• Easy to mount: Rotating valves offer easy access at the mounting location, simplifying installation and everyday use.

Who It's For

The Valterra Ell Double Rotating Valve is ideal for RV, camper, and trailer owners who frequently visit dump stations and want to reduce the time and mess of emptying both gray and black tanks at once. It suits DIYers replacing a worn original valve or anyone upgrading to a dual-drain arrangement.

It is less suited for owners who need a metal valve assembly or those with nonstandard plumbing that is incompatible with a 3 in x 1.5 in hub connection. Professional installers or fleets that require specific OEM parts should verify compatibility before purchase.

Pros & Cons

Pros

• Combines two drain sizes in one unit to cut dumping time and reduce handling.
• Well-constructed ABS plastic yields good durability for normal RV use.
• Easy to install for users familiar with RV plumbing and serves as a reliable replacement part.
• Integrated bayonet cap protects the fitting when not in use.

Cons

• Some users report mixed sealability, so additional sealing attention or replacement gaskets may be needed to prevent leaks.
• ABS solvent cement is required for installation and is sold separately, adding a small extra step and expense.

Specifications

Product type	Double rotating waste valve
Valve sizes	3 in hub x 1.5 in hub
Cap style	3 in bayonet cap
Material	Black ABS plastic
Intended use	RV, camper, trailer waste drainage
Installation	ABS solvent cement required (sold separately)

Our Verdict

The Valterra Ell Double Rotating Valve is a practical, cost-effective upgrade for RV owners who want faster, cleaner dumps by draining gray and black tanks together. It offers durable ABS construction and easy mounting for many standard rigs, making it a smart replacement choice, though buyers should attend to sealing details during installation to avoid leaks.

Frequently Asked Questions

Does this valve let you drain both tanks at once?
Yes. The dual 1.5 in and 3 in valve assembly is designed to allow simultaneous drainage of gray and black water tanks.

What material is the valve made from?
The valve is constructed from black ABS plastic for durability in RV use.

Do I need anything extra to install it?
Yes. ABS solvent cement is required for installation and is sold separately; also check gaskets for sealing to avoid leaks.