Constant Pressure
"It's not every day that a product or technology comes along that completely revolutionizes your industry. Variable Frequency Drive Systems have done just that for us. It is not just a little better than the old, standard systems, it is the best thing we have seen in 40 years."
Kevin Rediger, President
Stutzman Services, Inc
Constant pressure systems are changing the standard for private well systems all over the country. A private water well is one of the best sources of water for your home, but just as in municipal water systems, water pressure may sometimes be insufficient for the changing demands of the home. If you have a problem with water pressure in your home, you may have noticed that your washing machine fills more slowly when your dishwasher is running, or that your shower sputters when your sprinkler turns on. You don’t like it, but you live with it.
Now you have a choice!
With a constant pressure system, you don’t have to schedule your day around your water usage. Franklin’s SubDrive and MonoDrive constant pressure controllers vastly improve your home water system. Using variable speed technology, SubDrive and MonoDrive continuously monitor water demand and adjust the speed of your pump to provide the water you need without pressure fluctuations. Available in a wide variety of ratings, these systems also provide:
- Smooth, quiet operation
- Choice of pressure settings
- Built-in pumping system protection
Overview
Variable frequency technology has allowed us to vastly improve your home water system by virtually eliminating pressure fluctuations. Franklin constant pressure systems use this technology to provide a never-ending supply of constant pressure for your home, allowing your water to do more for you.
Water Well System
Franklin Electric's constant pressure systems, the SubDrive family, change the speed of the pump to meet the demand for water, while keeping pressure constant throughout the system.
SubDrive systems use a pressure sensor to detect water pressure, send a signal to the controller and regulate the speed of the pump. Instead of turning on and off when pressure tanks read a certain psi (generally 40 or 60), Franklin's constant pressure system keeps your tank at one pressure level, providing your home with a never ending steady flow of water.
In a constant pressure system when water demand increases, pump speed increases and when water demand decreases, the pump speed will decrease. To maintain pressure in the most efficient way possible the pump only runs as much as necessary to meet demand. Also, Franklin constant pressure systems do not require large tanks for storage; smaller and lighter tanks can be used and even mounted off the floor, saving space.
Compare a conventional well system to a constant pressure system.
Benefits
Franklin Electric SubDrive constant pressure systems improve the way you use water and provide added value to your home. SubDrive systems accommodate a wide range of flow demand, allowing your family to use the water they need, when they need it.
With constant pressure capabilities adding on to your home doesn't mean weaker water, shower schedules are eliminated, lawn irrigation isn't a hassle, appliances work more efficiently, water treatment is more effective and space is saved with a smaller tank (well owners). 
A Franklin Electric SubDrive constant pressure system provides:
- Installs in existing water systems. No need for construction.
- Smooth, quiet operation
- Choice of pressure settings
- Built-in pump system protection
- Electronic protection features
- Works with existing pressure tanks or smaller tanks can be used
- Easy installation
So pamper yourself while increasing the value of your home. Add the body shower you've always wanted. Install a sprinkler system or add an extra bathroom. Whatever your water needs, Franklin Electric SubDrive systems are up to the task.
Finally, it's possible to run the shower, wash the laundry and water the lawn, all at the same time — with increased and consistent pressure
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