Description
WSP Pressure Tank - Well Water, PT-AMTRO-4 is a 34-gallon pre-pressurized diaphragm tank designed to smooth well-pump cycling and maintain steady water pressure. It helps reduce pump starts and protects your well pump by holding a stable reserve of water under pressure.
How your laundry and clothing suffer from uneven water pressure
Have you noticed your laundry coming out stiff or colors fading faster than they used to? When your well pump cycles too frequently, water pressure fluctuates throughout your home. That drop and surge can stress your washing machine and other appliances, leaving clothes less clean and fibers worn out sooner. Inconsistent pressure means your washer doesn’t always run as efficiently as it should, which can translate to longer wash cycles and uneven detergent performance. This constant pressure change is also something you might see as sputtering faucets or uneven spray from shower heads.
What the control head on this pressure tank actually does
This pressure tank features an air-draw control head that creates and maintains an air pocket inside the tank. This air pocket provides a cushion that holds water under pressure without using chemicals. By pulling in and holding this air reserve, the tank reduces the number of times your well pump has to start and stop. The control head’s simple design means fewer mechanical parts to wear out and helps maintain steady system pressure for your entire house or light-commercial property.
Why the pre-pressurized diaphragm media fits your well system
Inside the tank, a pre-pressurized diaphragm separates the water from the air pocket. This design keeps the water and air from mixing, preventing waterlogging — a condition where the tank loses its air cushion and stops smoothing pressure. The diaphragm ensures that the tank maintains the right balance of air and water, making it reliable over long-term use and reducing maintenance needs.
The tank’s size and what it means for your water system
Measuring 22 inches in diameter and 30 inches tall, this 34-gallon tank offers a substantial water reserve in a compact shape that fits well in most mechanical rooms. Its wide body provides a larger volume of stored water, which means fewer pump starts and longer intervals between cycles. This not only protects your pump but also delivers a smoother flow of water when multiple fixtures run at the same time.
Who this pressure tank is right for
This 34-gallon tank is suited to large homes or light-commercial properties with higher water demand. It handles service flows of about 27 gallons per minute, which is enough capacity for multiple bathrooms or appliances running simultaneously. If your household is smaller or your water demand lighter, a smaller tank would be a better fit to avoid unnecessarily long wait times for pressure recovery. Conversely, larger properties with heavy simultaneous usage might require a bigger or additional tank to maintain steady pressure.
What you need to know about living with this system
Because the diaphragm keeps water and air separate, routine maintenance is straightforward. You’ll want to check the air charge periodically — about once a year is common — to ensure the air pocket is intact and the tank is working as it should. The tank’s durable construction means it will hold up over time, and the control head’s simple operation doesn’t need frequent attention. Your plumber can help with any servicing or pressure adjustments if needed.
What this system won’t address in your water
This pressure tank smooths pressure fluctuations and protects your pump but does not filter your water, remove chemicals, or treat hardness. It won’t affect taste, odor, or sediment, so if you have other water quality concerns, those would require separate equipment.
Why buy this pressure tank from Water Softener Plus
We supply pressure tanks with genuine, serviceable components designed for long-term reliability. The pressure vessel comes with a lifetime warranty, protecting your investment for years to come. We ship from Tampa with free U.S. shipping included, and our team provides real sizing advice based on your water needs. You get straightforward equipment without gimmicks, delivered quickly and backed by support if you need it.
Ready to order your pressure tank
Order your WSP Pressure Tank - Well Water, PT-AMTRO-4 online today and start protecting your well pump while smoothing your water pressure. Our clear descriptions and free shipping make it easy to get exactly what your system needs without surprises.
Who this size is right for
This is rated for roughly 27 gallons per minute of service flow, which suits a large or light-commercial property.
Flow rate matters more than tank size here: add up the fixtures that could realistically run at the same time and make sure this covers them. If you land close to the limit, go up rather than down.
Overview
- 🇺🇸 U.S.-based support and expert assistance
- 🔧 Built with trusted, industry-standard components
- 🚚 Ships nationwide - freight-safe packaging
- 🏠 Ideal for residential and light-commercial systems
Specs (Typical)
| Max Operating Pressure | 125 psi |
|---|---|
| Max Water Temp | 100 °F |
| Electrical | 120 V AC |
| Flow Range | 5-45 GPM (model dependent) |
Related: Control Valves . Parts . Get sizing help

