EPCOR's water in Fountain Hills is hard, around 16 grains per gallon, and that scale is a common reason shower valves start dripping, binding or losing temperature control. A plumber can usually fix it with new cartridge parts. Call the number on this page to be connected with a local plumber in Fountain Hills.

How hard is the water here, and does it matter for my shower?
It matters a lot. The town does not run its own water system; EPCOR serves Fountain Hills through its Chaparral City district, blending Central Arizona Project water, Lake Pleasant water and groundwater from below the town. EPCOR's report lists hardness of approximately 16 grains per gallon, with chlorine disinfection. Water that hard coats the inside of a shower valve the way it crusts a showerhead, and the cartridge is where it does the most damage: seals stiffen, the pressure-balancing spool slows down and the handle begins to drag. If you see white buildup on the trim, assume there is more inside.
Can the valve be repaired without opening the wall?
In most cases. The plumber removes the handle and escutcheon, pulls the cartridge and replaces it or its seals. Scaled cartridges can take some effort to extract, and an experienced plumber works carefully so the valve body is not damaged in the process. The wall only needs opening if the body is cracked, leaking at the pipe joints or too old for parts. If your shower is tiled floor to ceiling, ask whether there is access from a closet or adjoining room before anyone cuts tile. Matching discontinued tile is often harder than the plumbing itself, so a clean access route behind the shower can save a lot of trouble.
Who handles what?
The valve and the pipes on your side of the meter are the homeowner's responsibility. EPCOR handles the water system and can be reached at 800-383-0834 for outages or water trouble. Sewer is a separate provider, the Fountain Hills Sanitary District. Permits go through Town of Fountain Hills Building Safety, which processes applications online through its TOPPS system; ask the plumber whether a valve replacement in your home needs one.
A local note
At about 16 grains per gallon, a water softener is worth discussing if you are replacing a valve. It will not repair a worn cartridge, but it slows the scale that wore out the last one. Cleaning the showerhead and aerators every so often also helps, and it gives you an early look at how fast crust is building in your home.
Shower Valve Repair questions in Fountain Hills
Will a water softener help a new shower valve last longer?
Will replacing a shower valve mean breaking tile?
How can I tell if the valve is leaking inside the wall?
Does it matter which water company serves my house?
More plumbing services in Fountain Hills
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