Leak detection in Peoria

Two facts shape a Peoria leak call more than the housing does. The first is that Peoria is a split-utility city: part of it is billed by the City of Peoria and part by EPCOR Water Arizona, which serves Peoria customers through its Sonoran water district. Check the name on the bill before assuming who you are dealing with.

The second is a billing quirk with a long tail. In a number of Valley cities the sewer charge is set from winter water use and then carried across the following year’s bills, and the window Peoria uses runs December through March. So a leak in those months does not stay in those months.

Peoria has grown a long way past two hundred thousand residents and most of its housing is recent: the median year of construction is 1999, with close to half built since 2000 and less than one home in ten predating 1980.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023). Geography: Census place.

A winter leak can follow you all year

It is worth being concrete about what that means. An auto-fill stuck open in February, a weeping irrigation valve in January, a service line quietly losing water through the cool months: all of them raise the winter figure, and that figure is the one applied afterwards. The leak can be long fixed while the effect is still arriving.

The practical advice is simple. If your winter water use looked wrong and you never found out why, do not file it away as a mystery — it is the best possible time to have the property checked, because whatever caused it is probably still there.

Related: high water bill investigation.

What leaks in 1990s and 2000s Peoria housing

With a median build year of 1999, Peoria straddles two plumbing generations. The slightly older houses run copper with CPVC and early PEX appearing towards the end of the period, and those mixed-material systems fail at the transition fitting between two materials rather than along either run. The newer houses are PEX and newer copper, which fail at fittings and manifolds.

Both are point failures, which means both are small, quiet and hard to see. A warm patch of tile, a faint hiss in a silent house, a meter dial that creeps overnight. We isolate, pressure-test, trace and listen, and no concrete is opened until the loss has an address — post-tension slabs in this region carry a do-not-cut warning stamp for good reason.

Related: slab leak detection and slab leak repair.

Pools, auto-fills and the bucket

Peoria has a great many pools of roughly the same age as its houses, and on pools of that generation the buried plumbing and the fittings are more likely than the shell. The auto-fill is what hides all of it: a pool being topped up automatically looks completely normal while it loses water continuously.

So turn the auto-fill off and run a bucket test — bucket on a pool step, filled to the pool level, both levels marked, compared after two or three days, starting again if the weather turns. Then run it once more with the equipment off. Losing more with the pump running points at the plumbing; equal loss either way points at the structure and the fittings.

Peoria also has a hand in the Smart Home Water Guide, a joint publication of ten Valley cities issued through the Arizona Municipal Water Users Association, which walks through those checks and a good deal more.

Related: pool and spa leak detection and pool and spa leak repair.