Sahuarita: young housing, and the hardest water in the state

It is among the hardest in the state, and in a young house that is the main thing working against your plumbing. Untreated, it puts sediment in the water heater, scales a tankless heat exchanger, seizes fixture cartridges early, stiffens shower valves, and blocks heads and aerators, all well before you would expect wear in a house of this age.

Here, more than almost anywhere. If your house has a loop in the garage, most do, the pipework already exists so installation is straightforward, and the payoff shows up on every fixture and both heaters. It addresses scale and appliance life rather than safety, since your provider treats and tests the supply. Reverse osmosis at the kitchen tap handles taste.

Pressure and water chemistry together. High static pressure presses on every seal continuously, and hard water leaves deposits on the sealing surfaces so they wear against a rough seat. Measure with a hose-thread gauge at an outside bib before replacing another part, and take a second reading early in the morning when street pressure peaks.

Almost always scale on the heat exchanger. Hard water deposits reduce output and eventually cause faults, and the units are expensive to replace. Treatment on the incoming water plus periodic descaling is what makes tankless perform as sold here, untreated, it is the most common reason owners regret the choice.

Then it has a physical cause rather than being a use problem. Housing built over former farmland sits on fill that settles, and a buried line develops a belly or loses its fall, holding water and collecting solids. A camera inspection locates the dip, and correcting the grade is the only thing that ends the cycle.

Because clearing a line and repairing a line are different things. If a drain blocks repeatedly, something about the pipe is collecting what passes it, scale, a bellied section holding water, an open joint admitting roots. A camera inspection tells you which, and where. Until that happens, each clearing is buying a few months at full price.

Have it shut down properly rather than just turning the water off: supply isolated, system drained so nothing sits in exposed pipe, the water heater dealt with, and traps protected. It takes about an hour and removes most of the risk. Add a couple of leak sensors and someone who checks the house on a schedule, and mention the arrangements to whoever holds the key. See vacant home preparation.

Pricing is set by the independent contractor who takes the job, not by us, and it varies with what the work turns out to be, when you need it and how hard the access is. What is consistent is the sequence: someone looks, you get a price, and you agree it before any work starts. If a diagnostic fee applies it is quoted up front, and it is normally credited against the repair if you go ahead.

Some jobs carry a diagnostic or trip fee and some do not, and it depends on the work and the contractor. What you should never get is a surprise: any fee is stated before anyone is dispatched, and on most repairs it is credited against the job if you proceed. Ask on the phone, it is a fair question and a straight answer is a good early signal.

It depends on the time of day and what the job is. Routine work is usually scheduled within a day or two; an active leak with water running is triaged immediately and dispatch goes to whoever is closest and equipped for it. When you call, say whether water is running now and whether your main shutoff works, those two answers change the urgency more than anything else you can tell us.