Seasonal Maintenance

Spring Plumbing Checklist for Maryland Homeowners (Well Water Edition)

July 5, 2026 · 7 min read · By Deep Dive Plumbing Maryland

Spring is the best time to inspect your plumbing — after winter's freeze risk has passed and before the heavy use of summer. For Maryland homeowners with well water, spring is also the highest-risk season for bacterial contamination. Here is a complete checklist.

Well System

Test well water for bacteria, nitrates, and pH (annual test)

Inspect well cap and casing for damage or debris

Check pressure tank pressure (should be 2 psi below pump cut-in pressure)

Listen for short-cycling — pump turning on and off rapidly

Water Heater

Flush the tank to remove sediment

Test the T&P relief valve

Check the anode rod (replace if less than ½ inch thick)

Inspect expansion tank — tap to confirm air cushion is present

Drains & Sewer

Run water in all floor drains and infrequently used fixtures to refill P-traps

Check for slow drains — address before summer heavy use

Inspect sump pump — pour water in pit to test activation

Check sump pump discharge line is clear and directed away from foundation

Outdoor Plumbing

Reconnect outdoor hoses and check hose bibs for freeze damage

Inspect irrigation system for winter damage

Check that downspouts direct water away from the foundation

Inspect crawlspace for moisture or standing water

Water Treatment

Check water softener salt level and add if needed

Replace sediment filter cartridges

Check UV lamp (replace annually or per manufacturer schedule)

Test water hardness, iron, and pH if you have not tested recently

Frequently Asked Questions

When is the best time to do a spring plumbing inspection in Maryland?

March through April is ideal — after the last hard freeze but before the heavy spring rain season. This timing lets you catch any freeze damage from winter and prepare your plumbing for the increased demand of spring and summer. Well water testing should be done in spring when bacteria levels are typically highest due to snowmelt and spring rain.

How much does a spring plumbing inspection cost in Maryland?

A professional plumbing inspection in Maryland typically costs contact us for a free estimate and covers the major systems in your home. For well owners, a comprehensive water test adds contact us for a free estimate depending on the parameters tested. Many homeowners find that a spring inspection catches small problems before they become expensive emergencies.

What is the most important spring plumbing task for well owners?

Annual water testing is the most important task for well owners. Spring is the highest-risk time for bacterial contamination due to snowmelt and spring rain events that can introduce surface water into wells. Testing for bacteria, nitrates, and pH gives you a baseline and catches problems before they affect your family's health.

Related Resources

Well System Maintenance Guide Plumbing Maintenance Checklist

Written & Reviewed By

Terry Foster Jr.

Maryland Licensed Master Plumber & Gas Fitter · License #98433 · Plumbing Manager & Lead Technician

MD Master Plumber #98433 MD Gas Fitter #98433 20+ Years Experience

Terry Foster Jr. is a Maryland Licensed Master Plumber and Gas Fitter with over 20 years of hands-on experience in well systems, water treatment, drain & sewer, water heaters, and emergency plumbing throughout Calvert and Anne Arundel County. He is the Plumbing Manager and lead technician at Deep Dive Plumbing Maryland, founded by his wife Priscilla Foster. Every article on this site is written or reviewed by Terry based on real field experience — not generic internet research.

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