Shelby Township has grown dramatically over the past few decades, and its housing stock reflects that history. You’ll find everything from post-war ranch homes on large rural lots to newer subdivisions built in the 1990s and 2000s — and everything in between. What many of those older homes have in common is a well water system that has now been in service for 30, 40, or even 50 years. The wells themselves may still be producing reliably, but the above-ground components — particularly the pressure tank — have a much shorter lifespan.
Pressure tank replacement is one of the most common well service calls in Shelby Township and throughout Macomb County’s semi-rural areas. If your home is on a private well and you’ve noticed changes in water pressure, heard the pump clicking on and off constantly, or simply know that your tank is aging, this article is for you.
Ries Well Drilling has been replacing pressure tanks and servicing well systems in Shelby Township and the surrounding region since 1983. Here’s everything homeowners need to know.
WHAT DOES A PRESSURE TANK DO?
Your pressure tank is the unsung hero of your well water system. It works like a buffer between your pump and your household plumbing, holding a reserve of pressurized water so the pump doesn’t have to run every time you draw water.
Inside the tank is a rubber diaphragm or bladder that separates a chamber of compressed air from the water side. When the pump runs and fills the tank, the water compresses the air. When you open a faucet, the pressurized air pushes water out of the tank without the pump running. Once the pressure drops to the cut-in threshold, the pump kicks on to refill the tank.
This back-and-forth cycling is normal and healthy. The key is that the air cushion manages pressure between pump cycles. When that air cushion disappears — as happens when the bladder fails — the system loses its buffer.
HOW DO YOU KNOW IF YOUR PRESSURE TANK NEEDS REPLACEMENT?
The most reliable sign of a failed bladder is short-cycling — the pump turning on and off very rapidly, sometimes within seconds of each pump cycle. When the bladder is intact, the tank holds enough pressurized water to serve several gallons of household demand before the pump needs to cycle. When the bladder fails and water fills the entire tank, there’s no buffer, and the pump cycles with every small draw of water.
You can usually hear short-cycling happen. If the pump motor is running frequently — clicking on when you wash your hands and shutting off within a few seconds — that’s a red flag. Short-cycling is hard on the pump motor and significantly shortens pump life, so it’s not something to ignore even if the pressure seems acceptable at the moment.
Other signs include:
Waterlogged tank. Tap the side of your pressure tank. A healthy tank should sound hollow in the upper portion (where the air is). If it sounds solid all the way to the top, the tank is likely waterlogged.
Low air pre-charge. A tire-valve-style Schrader valve on the side of the tank allows a technician to check the air pre-charge pressure, which should typically be set 2 PSI below the pump’s cut-in pressure. A pre-charge that has dropped to zero indicates a failed or leaking bladder.
Pressure fluctuations at fixtures. If water pressure surges and drops in a pattern while you’re using it, rather than staying relatively consistent, a failing tank may be the cause.
WHAT SIZE TANK DO YOU NEED?
Pressure tanks are not all the same size, and selecting the right tank for your household matters. An undersized tank will short-cycle more frequently than a properly sized one, even when the bladder is healthy, because it lacks sufficient volume to provide adequate drawdown between pump cycles.
Tank sizing is based on your pump’s flow rate, your household’s water demand, and your system’s pressure switch settings. A well service technician will account for all of these factors when recommending a replacement. Don’t let anyone talk you into a tank that’s significantly smaller than your original if the original was properly sized — it’s a false economy.
WHAT ABOUT THE REST OF THE SYSTEM?
When a pressure tank is replaced, it’s also a good opportunity to have the surrounding components inspected. The pressure switch — which controls the pump on/off based on system pressure — has a limited lifespan, and replacing it at the same time as the tank (if it’s aging) prevents a return service call down the road.
The connection fittings, shutoff valve, and pressure gauge should also be inspected and replaced if corroded or worn.
HOW LONG DOES REPLACEMENT TAKE?
For a straightforward pressure tank replacement in a Shelby Township home, a well service technician can typically complete the job in a few hours. The water supply will be interrupted during the work and restored when the new tank is installed and pressurized.
WHAT IF THE PROBLEM IS ACTUALLY THE PUMP?
Sometimes homeowners call for a pressure tank replacement, and the tank turns out to be fine — or the tank is failing, but a pump problem is actually the root cause. A short-cycling tank can significantly accelerate pump wear; if the pump has been running rapidly for years due to a waterlogged tank, it may be due for evaluation even if it’s still technically functioning.
Ries Well Drilling’s technicians assess the complete well system, not just the component that prompted the call. This approach prevents the scenario where a new tank is installed only for a separate problem to surface weeks later.
SCHEDULE YOUR WELL SYSTEM INSPECTION
If your Shelby Township home is on a private well and the pressure system hasn’t been inspected in recent years, it’s worth scheduling a check. Catching a failing pressure tank before it short-cycles for months can extend your pump’s life and prevent an unexpected emergency.
Call Ries Well Drilling at 586-784-9516. They serve Shelby Township, Washington Township, Macomb Township, Chesterfield Township, and communities throughout Macomb, Oakland, Lapeer, and St. Clair Counties.