Author

plumbingbythebook.com

A household water pressure regulator on a service line with its nameplate and adjustment screw visible, illustrating how to identify a water pressure regulator and its rebuild kit

Water Pressure Regulator: Which One Do You Have, and What Rebuild Kit Fits?

Your water pressure regulator may be creeping, noisy or simply old, and the parts listings all say “PRV repair kit.” Order from…

November 9, 2026 · 13 min read

A Moen two-handle faucet cartridge with a white plastic stem beside one with a stainless-steel stem, illustrating how to tell Moen two-handle faucet cartridges apart

Moen Two-Handle Faucet Cartridges: 1224 or 1234? How to Tell Which One You Have

Your Moen faucet has a hot handle and a cold handle, one of them drips or has gone stiff, and the parts…

November 6, 2026 · 12 min read

A shower valve sitting deep behind a tiled wall next to an extension kit, illustrating shower valve extension kits

Shower Valve Extension Kits: Which One Fits Your Valve When It Sits Too Deep

The tile is up, or a second layer of backer board went on, and now the shower valve sits too deep behind…

November 2, 2026 · 11 min read

A macerating toilet's pump unit with the lid off, a membrane and a microswitch laid beside it, illustrating macerating toilet parts

Macerating Toilet Parts: Which Membrane, Microswitch and Kit Fit Your Unit

Your macerating toilet runs on, hums, or will not start, and the parts seller asks three questions you cannot answer yet: round…

October 30, 2026 · 13 min read

A refrigerator water filter housing with the cartridge removed and a bypass plug beside it, illustrating a refrigerator water filter bypass plug

Refrigerator Water Filter Bypass Plug: Which One Fits Your Fridge, and When You Need One

You took the filter out because the house already has filtration, or the cartridge keeps running out, and now the dispenser is…

October 26, 2026 · 13 min read

A spent water heater anode rod pulled from the top of a tank beside a new rod, illustrating how to pick a water heater anode rod that fits

Water Heater Anode Rod: Which One Fits Your Tank, and Which Type to Choose

The old rod is spent, or the hot water smells like rotten eggs, or you are finally maintaining the tank. Either way…

October 23, 2026 · 14 min read

A chrome tub and shower lever handle removed from its stem beside a handle kit, illustrating how to choose a replacement shower handle

Replacement Shower Handle: How to Match It to Your Valve Before You Buy

The handle on your tub and shower is cracked, loose, spinning on the stem or worn through at the finish, and the…

October 21, 2026 · 13 min read

A ceramic faucet cartridge held next to a ruler and a model number tag, illustrating how to find a store-brand faucet cartridge

Store-Brand Faucet Cartridge: Finding the Part When the Brand Belongs to the Store

Your faucet drips, and the only name on it is Glacier Bay, Pegasus, AquaSource, Project Source or allen + roth. There is…

October 19, 2026 · 12 min read

A brass tub and shower faucet stem laid beside a ruler, illustrating a faucet stem identification chart by length and broach

Shower and Faucet Stem Identification Chart: Match Yours by Length and Broach

You pulled the stem out of a two-handle tub and shower valve, and there is no brand and no model number anywhere…

October 16, 2026 · 13 min read

A frost-free outdoor faucet on a house wall with a vacuum breaker cap, illustrating how to identify a frost-free outdoor faucet stem

Frost-Free Outdoor Faucet Stem: How to Identify Yours Before You Order

Your outdoor faucet drips from the spout or the handle, and the repair parts aisle is full of long brass stems that…

October 12, 2026 · 12 min read