Church and House of Worship Plumbing in Phoenix

A church building works hard one or two days a week and sits quiet the rest. That pattern explains a lot of church plumbing trouble. Water sits still in pipes and traps. Grease from a Wednesday dinner cools in the line for six days. Then Sunday, or Easter, or a funeral, puts hundreds of people on restrooms that barely ran all week.

The legal baseline is simple. Maricopa County's code says that in any building the public is allowed to use, every fixture, pipe, drain and sewer connection has to be properly plumbed, sanitary and kept in repair. Facilities committees don't need a long list of rules. They need a building that works on the busiest day of the year.

When a church smells like sewer after a quiet week, a dry trap is often the reason. Every fixture trap holds a small plug of water, between 2 and 4 inches deep under the International Plumbing Code, that keeps sewer gas out of the room. In Phoenix's heat, a floor drain in a baptistry equipment room, a janitor's closet or a rarely used restroom can lose that seal to evaporation between uses. Then the building smells like sewer.

The IPC, one of the two plumbing codes Phoenix allows designers to use, requires protection for traps subject to evaporation: a trap primer valve, a barrier-type insert, or a lavatory drain in the same room routed into the floor drain. For drains without a primer, the simple fix is a volunteer with a bucket who pours water into seldom-used drains once a week. Honestly, that's often enough. If a drain keeps smelling after it's been filled, the problem is a vent or the sewer, and that's worth a call. See why a bathroom drain smells like sewer and sewer gas in commercial buildings.

Arizona law has the state's food rules exempt food served at a noncommercial social event such as a potluck. A kitchen that regularly sells meals is a different story. Phoenix's grease program defines a food service establishment as one that handles food "for sale" and uses or produces grease, and every such kitchen that prepares food on site needs a grease interceptor. If you sell plates at a fundraiser every week, talk to the city before assuming you're exempt.

Even a free-meal kitchen answers to Phoenix City Code 28-8, which bars any user from sending fats, oils and grease that can obstruct the sewer. Section 28-12 lets the city require interceptors at facilities beyond restaurants when their waste carries excessive grease. Practically, church kitchens clog because big batches of gravy and fryer oil go down the sink once a month, then sit. Scrape and wipe pans into the trash, and keep hot grease out of the drain. More on what FOG is, how often to pump a grease trap and the Valley grease trap rules by city.

Holiday services and big weddings are where old restrooms show their age. Flushometer valves that stick, toilets that clog under heavy use and a building sewer partly blocked by roots all tend to show up on the same crowded morning. A camera inspection of the main line before a big season is worth doing on an older campus. See a flushometer that keeps running and signs of tree roots in a sewer line.

For outdoor events, Maricopa County's code covers religious gatherings directly. Where adequate permanent toilets aren't provided on the premises, approved toilets go within 200 feet of the gathering, at a minimum of one per 100 people attending.

Church campuses often have big lawns, and Phoenix's backflow rules follow the irrigation. A system not subject to backpressure needs at least a pressure vacuum breaker, installed above ground. A system with chemical injection, or with multiple services, needs a reduced pressure (RP) assembly. Every assembly gets tested at least once a year, with results filed with the city. Here's Phoenix's cross-connection code and what to do when an assembly fails its test.

We clear kitchen and restroom lines with commercial drain cleaning and hydro jetting, service grease interceptors, fix dry-trap odors and install trap primers, repair flushometers, replace water heaters, run gas lines for kitchens, replace backflow assemblies, and camera and repair sewer lines. We're available 24/7, including the Saturday night before a big service. Estimates are free, and you get an upfront price before any work starts.