Pinhole Leaks index
Resource for pinhole leak information.

Polybutylene Piping index
Resource for polybutylene piping information.

Toilets index
Resource for toilet information.

ABS Piping
Class action settlement.

Backflow Prevention
The importance of protecting the purity of your drinking water, with many reference links. From Les O'Brien.

Check Sewer Vents for Ice Accumulation
From NDState Extension.

Cold Weather Checklist
From Indianapolis Water Company.

Faucet Repair
Generic explanation & diagrams of different types of faucets, from Kissler.

Guide To Solvent Cementing Plastic Pipes & Fittings
Basic principles, with or without solvent, hot or cold weather, safety, storage & handling. From IPS.

How To Fix Frozen or Broken Pipes
Methods of unclogging frozen pipes and repairing pipes that have been damaged by freezing. From Lowe's.

How To Prevent Frozen Pipes
Frozen pipes aren't just an inconvenience. From State Farm Insurance.

Kitchen and Bath Products
General product information, from Kohler.

Plbg.com
Plumbing discussion, help and advice forum. Site is visited by experts, master plumbers, manufacturers, architects, engineers and home owners.

Plumbing FAQ
Answers to frequently-asked plumbing questions. Hints and tips on a wide variety of issues. From theplumber.com.

Plumbing Care & Repair Handbook
Booklet of helpful plumbing tips. From theplumber.com.

Plumbing Features & Articles
From This Old House.

Plumbing Materials Guide
From Home Repairs & Etc.

Plumbing Tech Corner
Fuel BTU content, electric & gas water heater recovery, gas & water pipe capacity, pipe vent sizes, storage tank capacities. From Irr Supply.

Plumbing Tube: The Copper Connection
The copper tube handbook online, guide specifications, fuel gas distribution systems, soldering & brazing.

Proper Solvent Cement Procedures
EZ-Weld Technical Note showing step-by-step procedure, from Fry Technology.

Repair Solutions Guide
Detailed parts and assembly diagrams, with FAQs, for Delta Faucets.

Scald Protection
Specifications on several scald protection devices, plus a list of things you should know about hot water injuries.

Suppliers of Plumbing, Faucets and Fixtures
Manufacturers, wholesalers, and retailers, from Build.com.

Tube and Pipe Specifications
From TubeNet.

Vanguard Piping Systems
Flexible cross-linked polyethylene plumbing material (PEX).