The Complete Guide to Pipes & Fittings
Complete Guide 1070 words
Everything you need to know about Pipes & Fittings — from choosing the right type and buying smart, to installation, ongoing maintenance, and understanding costs.
PVC (White)
The most common residential DWV material. Schedule 40 is standard. Lightweight, corrosion-proof, easy to cut and join with solvent cement. Requires purple primer before cement in most jurisdictions. Quiet sound dampening is poor -- water flowing through PVC is audible through walls.
ABS (Black)
Similar to PVC but single-step cement (no primer needed). Common in western US and Canada. Cannot be mixed with PVC without a transition fitting. Slightly more brittle than PVC in cold temperatures. Performance and lifespan are comparable to PVC.
Cast Iron
The original DWV material. Extremely quiet -- water noise is absorbed by the dense metal. Very heavy. Joins with no-hub couplings and band clamps. Corrodes from inside over 50-80 years, eventually developing holes and blockages. Found in pre-1980 homes. Replacement with PVC is common during renovations.
Buying Tips
- PVC is the standard choice for new residential DWV work in most areas.
- If noise matters (drains running through bedroom walls), consider cast iron for those specific runs.
- Never mix PVC and ABS with solvent cement. Use a mechanical transition coupling.
- Schedule 40 is standard. Schedule 20 (thin-wall) is for non-structural drain applications only.
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PEX Installation Methods
A practical guide to PEX crimp, clamp, and expansion connection methods for residential plumbing.
Push-Fit Fitting Installation
How to use push-fit (SharkBite style) fittings for quick plumbing connections and repairs.
PVC & ABS Drain Pipe Assembly
How to cut, prime, and cement PVC and ABS drain pipes for reliable waste connections.
Soldering Copper Pipe
How to sweat copper joints for reliable, leak-free water supply connections.
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Corrosion & Water Quality Monitoring
How to identify and address pipe corrosion caused by water chemistry, and when to take action.
Drain Line Maintenance
How to keep your drain lines flowing freely and prevent clogs before they happen.
Freeze Prevention & Thawing Pipes
How to protect your pipes from freezing and safely thaw them if they do freeze.
Leak Detection & Prevention
How to find hidden leaks in your plumbing system and prevent them before they cause water damage.
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Burst Pipe Emergency Repair Cost
What it costs to repair a burst water pipe -- emergency plumber rates, repair methods, water damage costs, and how to minimize the total bill.
Emergency Plumbing Repair Costs
What emergency plumbing calls actually cost and how to minimize the financial damage.
Fitting & Connection Costs
What pipe fittings and connections cost by type -- push-fit, crimp, solder, and compression.
Pipe Costs by Material
What different pipe materials cost per linear foot -- PEX, copper, CPVC, PVC, and cast iron.
Cost to Re-Pipe a House
Full cost breakdown for re-piping a house with PEX or copper -- by house size, pipe material, number of fixtures, and what drives the price up.
Whole-House Repipe Costs
What a full home repipe costs for different pipe materials, house sizes, and project scopes.
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