backwater valves backwater valve diagram backwater valve features and specifications backwater valve priceing contact us backflow prevention information helpful links backwater valves main page backwater valve videos backwater check valves frequently asked questions adapt-a-valve information backwater valve specifications testimonials backwater valve history backwater valve animation backwater valve installation tips backflow prevention links

our backwater valves feature clear plastic tops for easy inspection
Our award-winning, patented, Mainline fullport backwater valves have clear plastic tops so you can visually inspect for blockage BEFORE problems arise!

Model # PE 2013 Access Box
Model # PE 2013
Valve Access Box

The overall width of the open base of the black PE 2013 Access Box is 14-7/8" X 20" and steps down to 11-1/8" X 14-7/8" at the top of its 16" height. The removable gray high density polyethylene (plastic) top access panel is 10-7/8" X 14-1/2". The access box top is held in place by two 1/4" Plastic Push Fasteners.

  • Mainline Model # 4963 A (ABS) & Model # 4963 P (PVC) full port backwater valves.

  • Clear Top for easy visual inspection.

  • Fullport (normally open) non flow-restricting design.  It's virtually self-cleaning!

  • No problems with Blockages.

  • Gate closes automatically when sewer starts to back up

  • Built in main sewer cleanout.

  • Cleaning rods do not destroy the gate when feeding or retrieving cleanout cables.

  • Normally open design allows the free circulation of air throughout the plumbing system to the municipal sewer system.

  • New, Award-Winning Technology.

  • Affordable building drain backup protection.

  • Backwater Valve US Patent # 5406972

  • Backwater Valve Dimensions: Width: 10" (254 mm), Length: 15.5" (394 mm), Height: 11" ( 280 mm ).

backwater valve pricing

cutaway view of the model 4963 A or 4963 P backwater valve
Cutaway view of our Model # 4963
main line full port back water valve

More detailed backwater valve specifications

backflow check valve products

new @backwatervalves twitter link backwater valves; follow us on twitter
- Back water valves - Backwater Valve Diagram - Backwater Valve Features -
- Backwater Valve Videos - Backflow Links - Backflow Preventers - Backwater Valve Animation -

how to install your backwater valve INSTALLATION TIPS; how to install backwater valves installing a mainline backwater valve

- Fullport Backwater Valve Brochure (Adobe Acrobat pdf) - adobe acrobat pdf files - Adapt-A-Valve Brochure (Adpbe Acrobat pdf) -
- new Termex backflow preventors Termex Backwater Valve Brochure (Adobe Acrobat pdf)
- Mainline ML FR4 ABS Automatic Backwater Valve ML-FR4 Mainline Backwater Valve Fio Valve Brochure (Adobe Acrobat pdf)

6" Backwater Valves - Mainline STRAIGHT FIT Backwater Valves

- Adapt-A-ValvesAdapt-A-Valve Inspection Chamber -
- Termex backflow prevention Termex Backwater Valves -
 - fio Valve ML-FR4 backwater valve by Mainline Mainline ML-FR4 Backwater Valve - Fio Valve -
- Basement Drain Backing Up - Mainline History - Testimonials - Home -

- Affordable Flood Alarms - Pedestal Sump Pumps / Submersible Sump Pumps -

backwater valve measurements and specifications Measurements, Specifications and IAPMO Certifications
Back water valve questions Frequently Asked Questions
 contact us about your backwater valve needs Contact Us

Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems. 
SPECIAL OFFER: Mainline Backwater Valve "Combo" with Access Box ($89.00 value if purchased separately)
Valves without Access Box are also available with a slight shipping discount in the price.

Protect Your Home with a Backwater Valve
from Backwater-Valve.com

telephone All Orders must be placed online by Credit Card,
but you may phone Greg at 330.836.9393 for info
(9 AM - 4 PM EST Monday - Friday or Voicemail anytime)

email Email: Help@Backwater-Valves.com
Back water valve questionsCheck Our FREQUENTLY ASKED QUESTIONS Page

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Akron, OH, USA
All rights reserved.

backflow prevention links

backwater-valves.com is independently owned and resells
products produced by Mainline of Canada and assumes no
liability for the installation of backwater valves and related products.
Check with the plumbing authority in the municipality in which your valve
is to be installed to insure that your installation is in compliance with local code,
and be sure have your valve inspected by your local plumbing inspector after installation.
Inspect your valve frequently; the Backwater Valve through its clear plastic housing top,
and the Adapt-A-Valve, by removing the gate cassette.

IMPORTANT NOTES:
Pipe end-to-end, the Adapt-A-Valve takes up 6" of run in your line
and the outlet is 1-1/2" LOWER than the inlet, so in just 6"
the level of the pipe at the outlet side needs to be 1-1/2" lower.
Pipe end-to-end, the Backwater Valve takes up 12" of run in your line
and the outlet is 3/4" LOWER than the inlet, so in just 12"
the level of the pipe at the outlet side needs to be 3/4" lower.
Depending upon the amount of slope in your line
(2% minimum is required for proper operation),
you may need to replace several feet of pipe downstream
from the valve to average out this "loss" of fall.

Policies
Mainline Valve Warranty (printable Adobe Acrobat .pdf file)

buy backwater valves online
High-volume inquires are directed to Tom at Mainline

 

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