Hydrostatic Testing in Barstow

Check the date on the cylinder

Every extinguisher carries a test date. Find it before your next inspection. In a hydrostatic test, a technician empties the cylinder, fills it with water and takes it above its normal working pressure to see whether the shell stretches, leaks or fails. A cylinder that passes goes back into service. One that fails is condemned.

This isn't the yearly tag. Annual maintenance happens every year and gets recorded on the tag, while the hydrostatic test runs on a much longer clock that depends on what's inside the cylinder.

When each type comes due

• Dry chemical (ABC and BC units): every 12 years
• CO2: every 5 years
• Water: every 5 years
• Wet chemical (Class K), the kind used in commercial kitchens: every 5 years

Stored-pressure dry chemical units also get a 6-year internal maintenance. On a 12-year cylinder, that teardown falls at the halfway mark. Kitchens running Class K units can pair the test with fire kitchen service in Barstow.

Test it, recharge it or replace it?

Barstow callers ask whether an older cylinder is worth certifying or should just be swapped. It depends. The cylinder's type, its age and how close it is to its next due date all change the math, and a unit that gets a hydrostatic test also has to be refilled afterward (see fire extinguisher refill in Barstow). On a small unit, the test plus the recharge can come close to the cost of a new one. A recent Barstow quote for a new commercial extinguisher was $75 per unit. Ask for both numbers when you call.

Who sets the requirement in Barstow

The Barstow Fire Protection District handles fire and emergency response in the city. It's a subsidiary district of the City of Barstow. On the district's fire code page, the fire marshal role is held together with the city's building official. The district adopted the 2022 California Fire Code by ordinance, and Section 906 of that code covers portable extinguishers. Newer editions come out on a cycle. Confirm the edition in force with the fire marshal.

Got a violation notice? Have an inspection on the calendar, or an insurance deadline? Tell us the date when you call so we can plan the visit around it.

Who does the work

In California, extinguisher service has to be done by a firm and a technician licensed by the California State Fire Marshal under Title 19. Our California work is done by Hedrick Fire Protection, which holds C-16 and C-10 contractor licenses and is State Fire Marshal licensed for portable extinguisher service and water-based system service.

Barstow hydrostatic testing questions

Do you service the Barstow area?

Yes. Barstow is one of our listed service areas. Call or email to set a date.

Do brand-new extinguishers need a hydrostatic test?

No. The test interval is counted from the cylinder's manufacture date, so a new dry chemical unit won't be due for 12 years. It still needs monthly checks by the owner and annual maintenance with a tag.

Is a cheap store-bought extinguisher worth testing?

Usually not. Many small retail units are built to be thrown away after use and can't be recharged or tested, so replacing them with a serviceable commercial unit tends to make more sense.

How often does a CO2 extinguisher need hydro testing?

Every 5 years. Water and Class K units use the same interval.

Can it be done before my inspection date?

Give us the deadline when you call. The earlier we hear about it, the more scheduling options you have.

Related Barstow services

• Fire protection services in Barstow
• Annual fire extinguisher certification in Barstow
• Fire extinguisher service in Barstow
• Fire extinguisher training for Barstow employees

To schedule hydrostatic testing in Barstow, call (909) 219-9411 or email socal@1profire.com