Meridian Plumbing Guides
Plain answers to the plumbing questions Meridian homeowners ask most, built on the city's own water data, backflow rules, and permit process. Each guide explains what to check yourself and when a plumber is the better call.
All guides
Backflow test requirements
Who has to test, which assemblies still qualify, the 15-day and 10-business-day deadlines, and what happens after a failed report.
Read the guide →Sprinkler blowout timing
Why the city says to finish before October 31, how a blowout works, and the backflow step that saves you a spring replacement.
Read the guide →Dual connection removal
What a dual or cross connection is, why Meridian bans them for homes, how to tell if you have one, and what removal usually involves.
Read the guide →Water hardness and water heaters
What the city's five water zones mean for scale, sediment, anode rods, and how long a water heater lasts in Meridian.
Read the guide →Softener sizing by zone
A step-by-step way to size a softener using your zone's hardness and your household's water use, with worked examples.
Read the guide →Tank vs tankless
An honest comparison of tank and tankless heaters for Meridian homes, with hard water, gas line size, and maintenance in the picture.
Read the guide →Finding the main shutoff
Where Meridian homes usually hide the main shutoff, how to find yours before you need it, and what to do if it is stuck.
Read the guide →Crawl space freeze checklist
A practical crawl space walk-through for fall, covering vents, insulation, heat cable, and where lines freeze first.
Read the guide →Frost-free hydrant bursts
How frost-free hose bibs work, why they still split, how to spot a hidden burst inside the wall, and how to prevent it.
Read the guide →High water bill
A step-by-step way to track down the cause of a high bill, starting with free checks and ending with when to call for detection.
Read the guide →Sewer scope before buying
Why a standard home inspection skips the buried sewer line, what a scope finds, and how to use the footage in negotiations.
Read the guide →Old Town Meridian plumbing
What pre-1970 homes near Old Town usually have in the walls and under the yard, how to check, and how to plan replacement.
Read the guide →Boom-era home plumbing
Which parts in Meridian's 1995 to 2010 homes are reaching the end of their life, what to inspect, and a sensible order for replacing them.
Read the guide →Arsenic and nitrate filters
What the city's reports actually say about arsenic and nitrate, how the levels compare with federal limits, and which filters reduce them.
Read the guide →Plumbing permits in Meridian
Which office issues your permit, which jobs need one, how homeowner permits work, and why gas piping follows separate rules.
Read the guide →