Well FAQ for Flathead Valley Homeowners

Common causes are a tripped breaker, a failed or frozen pressure switch, a burned-out pump motor or control box, a frozen line, or a water level that has dropped below the pump. Check the breaker once and look for frozen components, then call. See no water.

Submersible pumps commonly last around 8–15 years. Water quality, heavy use and frequent cycling shorten that. See pump replacement.

Rapid cycling usually means the pressure tank is waterlogged, has lost its air charge, or the bladder failed. It wears out the pump — get it checked soon. See pressure tanks.

Common causes include a pressure switch set too low, a failing pressure tank, clogged filters or softener, a worn pump, or a leak. A well pro can test each part.

Look for your well log in Montana's Ground Water Information Center (GWIC), run by the Montana Bureau of Mines and Geology. It often shows depth, water level, yield and the driller.

Wells must be drilled by a contractor licensed through the state Board of Water Well Contractors. See well drilling.

Most household wells fall under Montana's exempt-well limits and don't need a permit beforehand, but a Notice of Completion generally must be filed with Montana DNRC after the well is completed to establish the water right. Confirm current requirements with DNRC or your driller.

Many new household wells (drilling, casing and pump system) land in the tens of thousands of dollars, mostly depending on depth. See the Flathead well cost guide.

Yearly testing for coliform bacteria and nitrates is commonly recommended, plus any time the water changes or after well work. See water testing & treatment.

Insulate and heat the well house or wherever the pressure switch and tank sit, protect exposed lines, fix drips, and winterize cabins that sit empty. Never thaw lines with an open flame.

Often yes, if the generator is sized for the pump and connected through a proper transfer switch or interlock. Have a licensed electrician or well pro set it up.

No. We're a free referral service that connects homeowners with independent, licensed local well professionals, who provide their own quotes and do the work. There's no charge to you for using our service.