Outdoor Faucets & Sprinklers

Don’t Turn On Your Outdoor Faucets and Sprinklers This Summer Until You Read This

Summer tends to arrive gently in Marin County. The hills above San Rafael and Fairfax turn green, the rains taper off through April and May, and homeowners start thinking about getting their yards ready for the warmer months ahead. For most people, that means turning on the hose, firing up the sprinkler system, and getting back outside after a wet winter.

What most homeowners don’t think about is what happened to their outdoor plumbing over the last several months. Marin County winters are mild compared to much of the country, but they still bring enough cold snaps, wet weather, and sitting water to create real problems in outdoor faucets, hose bibs, and irrigation systems that weren’t properly shut down in fall. Turning everything back on without checking it first is one of the most common ways homeowners in San Rafael, Mill Valley, Novato, and Larkspur end up with a leak – or a water bill that makes no sense until someone finds the broken line buried under the lawn.

Divine Electric and Plumbing has been serving Marin County and Sonoma homeowners since 2003. Founded by Darin Divine, our licensed plumbing team knows exactly what to look for when Marin homes come out of winter – and how to get your outdoor water systems running cleanly and efficiently before the dry season hits.

Why Summer Start-Up Matters for Marin County Homeowners

• Marin Winters Are Mild, But Not Always Kind to Outdoor Plumbing: The Bay Area doesn’t experience the hard freezes that devastate plumbing systems in colder climates, but Marin County does see nighttime temperatures dip below freezing during cold spells, particularly in inland communities like Fairfax, San Anselmo, and the Lucas Valley area. Outdoor hose bibs and irrigation backflow preventers that were left with residual water inside can crack at the fitting, split at the valve seat, or develop hairline fractures that don’t reveal themselves until water pressure is restored in spring.
• Marin’s Irrigation Systems Face Specific Winter Risks: Many homes across Marin County rely on irrigation systems to maintain landscaping through the dry summer months. Those systems spend the winter months dormant, with sprinkler heads sitting in wet soil, valves exposed to temperature swings, and controller programming that may no longer reflect current watering needs. 
• California’s Water Conservation Standards Make Efficiency Non-Negotiable: Marin County homeowners operate under some of California’s most progressive water use guidelines. An irrigation system with a cracked head, a misaligned sprinkler, or a zone valve that won’t fully close can waste thousands of gallons per season without the homeowner ever noticing. Until the water bill arrives or the lawn develops unexplained wet spots and dead zones simultaneously, of course. Starting the season with a properly inspected and calibrated system is both a water conservation measure and a cost-saving one.
• A Slow Leak in a Hidden Line Can Cause Significant Damage: Not all irrigation and outdoor plumbing problems are visible at the surface. A hairline crack in a lateral supply line buried several inches underground, a loose connection behind an exterior wall, or a failed anti-siphon valve at a hose bib can all introduce water into places it shouldn’t be like against a foundation, under a hardscape, or into a wall cavity, before any surface symptom appears. Spring start-up is the right time to pressurize the system slowly and check for signs of hidden leaks before they become expensive ones.

8 Must DO Steps for a Proper Summer Outdoor Plumbing Start-Up

1. Inspect Every Outdoor Hose Bib Before Turning Anything On: Walk around the exterior of your home and visually inspect every outdoor hose bib before you restore water pressure. Look for cracks in the spigot body, corrosion at the connection point where the bib enters the wall, and any mineral staining or discoloration that might indicate a slow drip that’s been occurring through the winter. Check that the handle turns smoothly and that the packing nut behind the handle isn’t loose. A hose bib that’s been compromised by winter conditions will often show signs before it fails. Give it a close look while you can still catch it early.
2. Restore Water to Outdoor Faucets Slowly: When you turn your outdoor faucets back on after winter, do it slowly. Open the supply valve gradually to allow pressure to build up without a sudden surge, and open the faucet itself slightly as pressure returns. Watch for any dripping at the base of the handle, at the wall connection, or at the spigot itself. Sudden pressure restoration can turn a hairline crack that was holding together into an active leak. A slow, controlled re-pressurization gives you the chance to catch problems before they escalate.
3. Check and Replace Hose Washers: Before connecting garden hoses for the season, inspect the rubber washer inside each hose’s female fitting. These washers harden and crack over a winter of sitting in an unheated garage or shed, and a failed washer is the most common cause of that steady drip at the hose-to-bib connection that wastes water all season long. Replacement washers cost almost nothing and take seconds to install. It’s one of the simplest outdoor plumbing maintenance tasks a homeowner can do, and most skip it every year.
4. Test Your Irrigation Controller and Zone Programming: Before activating a single sprinkler zone, check your irrigation controller. Confirm the date, time, and seasonal programming are correct. Many controllers lose their settings during power outages, and Marin County’s winter storms can cause brief outages that reset clocks and schedules without the homeowner noticing. Review the run times for each zone and adjust them for early spring conditions. A controller running summer schedules in April wastes significant water before the landscape actually needs it.
5. Activate Irrigation Zones One at a Time and Watch Each One: Don’t activate your entire irrigation system at once and then walk away. Turn on each zone individually and observe the full run cycle from start to finish. Walk the zone while it runs and watch for sprinkler heads that don’t pop up fully, heads that spray in the wrong direction, heads that are cracked or broken at the top, or areas of the lawn or garden that aren’t receiving water coverage. Note any zones that run at significantly lower pressure than expected. This can indicate a broken line underground or a zone valve that isn’t opening fully.
6. Inspect Backflow Preventers and Anti-Siphon Valves: California code requires backflow prevention devices on irrigation systems to protect the municipal water supply from contamination. These devices are exposed to weather year-round and are one of the components most vulnerable to freeze damage in Marin’s cold snaps. Inspect each device for cracks, signs of leaking, or corrosion. A failed backflow preventer not only wastes water but can put your property out of compliance with local code requirements.
7. Check Drip Irrigation Emitters and Tubing: If your landscaping includes drip irrigation zones, inspect the tubing and emitters carefully before the season begins. Drip tubing can be damaged by foot traffic, garden tools, and animal activity over the winter. Emitters clog with mineral deposits and debris. A clogged or damaged drip system looks like it’s working from the controller’s perspective but isn’t delivering water to the plants it’s supposed to feed. Run each drip zone and walk it while it operates to confirm every emitter is functioning and the tubing is intact.
8. Know When to Call a Professional: If you find a broken underground line, a backflow preventer that needs repair or replacement, a zone valve that won’t open or close properly, or any active leak at a hose bib connection, these are repairs that require a licensed plumber. Outdoor plumbing repairs that involve supply lines, valve replacements, or code-required backflow prevention devices aren’t DIY territory, and in Marin County where water regulations are taken seriously, improper repairs can create compliance issues in addition to functional ones. Divine’s licensed plumbing team will diagnose and resolve any outdoor plumbing issue your plumbing inspection turns up, typically on the same visit.

Why Marin County Homeowners Choose Divine

• Marin’s #1 Rated Plumber & Electrician Since 2003: Divine has been serving San Rafael, Mill Valley, Novato, Larkspur, Tiburon, Sausalito, Fairfax, Corte Madera, and communities across Marin County and Sonoma for over 20 years. Founded by Darin Divine as a genuine local company, we aren’t a franchise following a corporate playbook. We’re your neighbors, deeply rooted in the Marin community they’ve served since day one.
• Customer Choice Options: Divine’s unique Customer Choice Options provide two premium, two standard, and two basic solutions for every project. You see all the options upfront, understand exactly what each one includes, and choose the plan that fits your priorities and your budget. No pressure, no upselling, no guesswork.
• Upfront Pricing Guaranteed: The price Divine quotes is the price you pay. Even if the job takes longer than expected. No hidden fees, no surprise line items at the end of the invoice. That commitment to transparency is one of the primary reasons Marin homeowners call Divine first.
• Licensed, Bonded & Insured: Every Divine plumber is licensed, bonded, and insured. The work done in your home meets all applicable California codes and standards, including the water conservation and backflow prevention requirements that Marin County homeowners are held to.
• 24/7 Live Answering & Emergency Service: If an outdoor faucet fails during your spring start-up and water is flowing where it shouldn’t be, Divine offers 24/7 live answering and emergency plumbing service. You reach a real person, every time you call.
• Flexible Financing Options: If spring plumbing start-up reveals a more significant repair like a broken underground line, a failed backflow preventer assembly, or outdoor faucets that need full replacement, Divine offers flexible financing options so the right repair doesn’t have to wait.
• The 7 Pure Motives: Divine operates on a foundation of “Safety, Health, Quality, Reliability, Relevant Solutions, Service, and Honesty.” These aren’t just basic marketing words. They are the principles that every Divine team member brings to every job, in every neighborhood across Marin County.

Get Your Outdoor Plumbing Ready Before the Dry Season Arrives

Marin County’s rainy season winds down quickly, and once it does, your outdoor faucets and irrigation system become the frontline tools keeping your landscaping alive through months of little to no rainfall. Getting them in proper working order now, before the dry season creates peak demand, is the smartest thing you can do for your yard, water bill, and home.

Call Divine today at (415) 213-4972 or schedule your spring plumbing inspection online at calldivine.com and let Marin County’s most trusted plumbing team make sure everything is ready when you need it most.