---
product_id: 316606673
title: "Barker Valterra-Bristol Model Auto Drain"
brand: "barker"
price: "$9555"
currency: MXN
in_stock: true
reviews_count: 6
category: "Barker"
url: https://www.desertcart.mx/products/316606673-barker-valterra-bristol-model-auto-drain
store_origin: MX
region: Mexico
---

# 12V DC power, 150mA low consumption No extra plumbing fittings needed Corrosion-resistant steel, aluminum & plastic Barker Valterra-Bristol Model Auto Drain

**Brand:** barker
**Price:** $9555
**Availability:** ✅ In Stock

## Summary

> 🚐 Dump your tanks, not your time — smart, sleek, and hassle-free!

## Quick Answers

- **What is this?** Barker Valterra-Bristol Model Auto Drain by barker
- **How much does it cost?** $9555 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/316606673-barker-valterra-bristol-model-auto-drain)

## Best For

- barker enthusiasts

## Why This Product

- Trusted barker brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable corrosion-resistant materials keep your system leak-free season after season.
- • **Fast & Efficient:** 3-second cycle time means less waiting, more adventure.
- • **Reliable Manual Backup:** Manual override ensures smooth draining even if your battery fails.
- • **Effortless Tank Dumping:** One-switch operation eliminates hard-to-reach valves and messy cables.
- • **Plug & Play Installation:** Fits existing Valterra and Bristol valves with zero extra plumbing hassle.

## Overview

The Barker Valterra-Bristol Model Auto Drain is a 12V battery-powered RV tank dumping system designed for quick, easy operation with a manual backup. Constructed from corrosion-resistant steel, aluminum, and plastic, it installs without additional plumbing fittings and fits Valterra and Bristol slide valves. With a 3-second cycle time and low power consumption, it offers a durable, efficient solution to simplify RV waste management.

## Description

Just push a switch on the Barker 1 1/2in Valterra-Bristol Model Auto Drain to dump your RV's black and grey water tank. Eliminate hassles with hard to reach and difficult to operate valve locations. Easy, manual operation in case of battery failure or valve problems. No additional plumbing fittings to install - to remove. Constructed of corrosion-resistant steel, aluminum, and plastic. Holding tanks do not have to be dumped to install. Also fits Valterra and Bristol slide valves. Each Auto-Drain comes complete with rocker arm switch, switch box, and complete installation and operating instructions. Voltage is 12 volts DC, amperage is 150 mA, and cycle time is 3 seconds. Also comes in 3in model.

Review: Good - Good
Review: These are a great addition to any RV and get rid of the cables that break and seize.

## Features

- Easy, manual operation in case of battery failure
- No additional plumbing fittings to install
- Constructed of corrosion-resistant steel, aluminum and plastic
- Holding tanks do not have to be dumped to install

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003VAV852 |
| Age Range | Kid |
| Batteries | 1 12V batteries required. |
| Batteries Included? | No |
| Best Sellers Rank | #52,381 in Sporting Goods ( See Top 100 in Sporting Goods ) #64 in Boat Plumbing |
| Brand | BARKER |
| Color | Grey |
| Customer Reviews | 4.2 4.2 out of 5 stars (78) |
| Date First Available | 1 January 2024 |
| Department | unisex-adult |
| Description Pile | 12V |
| Features | Portable |
| Height | 5.8 inches |
| Included Components | Manual (French non-guaranteed), Mounting Hardware, Interrupt Switch, Switch Box with Light |
| Item model number | 24140 |
| Length | 10.9 inches |
| Manufacturer | Barker |
| Material Type | Corrosion-resistant steel, aluminum, plastic |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 27.69 x 16.26 x 14.73 cm; 816.47 g |
| Size | 1 1/2-Inch |
| Sport | Camping & Hiking |
| Style | Modern |
| Weight | 2 Pounds |
| Width | 6.4 inches |

## Images

![Barker Valterra-Bristol Model Auto Drain - Image 1](https://m.media-amazon.com/images/I/71+p5uEgrgL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Can i buy an extra  switch in my coach.???**
A: The kit comes with a parts list so you can order replacement parts. You'll have to call the company to order an extra switch .

**Q: How far does it pump**
A: This is not a pump. It is only an actuator for your existing gate valve to the black and grey water holding tanks (you'll need one for each holding tank). The electric motor in the kit only opens and closes the valves by pressing a button in inside the RV instead of sliding the valve closed or open by hand at the drain location outside the RV. . If you drained you tanks by gravity, hand opening and closing the holding tank valve by hand, your tanks will still drain by gravity for the same hose distance to the sewer connection after installing the kit. 
If you want to pump out you tanks, you'l have to buy a macerator pump separately.  I bought these electric valve kits for my black and my grey holding tank valves plus a portable Flojet macertor pump. The electric valves are permanently installed on the RV. But when I hook up my sewer connection at the campsite, I attach the macerator pump at the 4 in tank drain outlet. and connect the pump to a pre-installed 12v power connection near the tank valves. The switches for the valves and the pump are inside the RV. so I can drain my tanks from inside the RV, even in the rain or the middle of thenight.

**Q: What is this? I'm guessing a wiring extension kit sold separately from the Barker auto-drain? Description doesn't even say...**
A: This is the Valterra auto drain actuator kit. It installs on a 1.5" or 3" Valterra drain valve and includes the actuator, switch and wiring necessary for installation.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by A***. on 13 May 2023*

Good

### ⭐⭐⭐⭐⭐ Review
*by S***S on 20 October 2023*

These are a great addition to any RV and get rid of the cables that break and seize.

### ⭐⭐⭐⭐⭐ Review
*by R***E on 4 June 2020*

easy install and works perfectly. Should have done this sooner. No more bending and reaching under the rig to empty tanks. Just attach the hose and press a button. Nice, neat and quick.

## Frequently Bought Together

- Barker Valterra-Bristol Model Auto Drain
- Valterra-T1003VPM Bladex 3-Inch Waste Valve Body with Metal Handle, Mess-Free Waste Valve for RV's, Campers, Trailers, Black

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-07*