WSP Control Valve (WSP-CV-9100)

WSP Control Valve (WSP-CV-9100) is the electronic control head that manages your water softener or filter’s cleaning cycles. It runs the backwash and regeneration process that keeps your system working efficiently, protecting your plumbing from scale and impurities.

The hidden cost of scale and dirty filters

You might not notice it right away, but that slow build-up of scale inside your pipes and appliances is costing you more than you think. Maybe your water heater is using more energy because mineral deposits have formed around the heating element. Your dishwasher and washing machine could be working harder or wearing out sooner. You add extra detergent because your clothes and dishes never feel quite clean. Over time, this adds up—with higher bills and more repairs or replacements down the line.

How the control valve keeps your system on track

This control valve is the brain that runs your softener or filter cycles. It tells the system when to backwash—that is, flush out trapped impurities—and when to regenerate, which refreshes the media inside the tank so it keeps working properly. The valve’s digital controls and backlit display let you program these cycles easily and check their status without fuss. It helps save water and salt by timing these processes efficiently, preventing unnecessary waste.

The role it plays without media inside

This valve doesn’t contain any filter or softening media itself. Instead, it controls the water flow through the tank where the media sits. That media could be softening resin, catalytic manganese dioxide for filtering, or another treatment bed suited to your water problem. The valve’s job is to keep your media clean and effective by managing regeneration and backwashing at just the right times.

The tank it works with and what that means

This control valve fits on a residential treatment tank, which can vary in size depending on your home’s needs. We confirm the exact tank size and porting details when we size your system to ensure everything fits and operates correctly. The tank holds the media and water; this valve keeps it cycling properly to reduce scale, filter impurities, and improve your water quality.

Who will benefit most from this control valve

This valve is designed for residential water softeners or filters sized to your household. It suits homes where the system needs reliable, electronic control of regeneration and backwash cycles. If your water system is very small or very large, the valve and tank size should be adjusted accordingly. We provide expert sizing help to match the valve to your specific system and water use.

What you receive and how to proceed

When you order the WSP Control Valve (WSP-CV-9100), you get the electronic control head with its easy-to-read backlit LCD display and simple programming interface. U.S. shipping is free and included in the price. Installation is done by your licensed plumber, who will fit it to your existing or new treatment tank. For help with sizing or questions, our Water Softener Plus team in Tampa is ready to assist.

Who this size is right for

Practically speaking, this is a control head, so the size it suits is set by the tank it sits on and the service flow the house needs, not by the head itself. On standard residential porting that is a single-family home.

Because no fixed capacity is published for this item, the honest answer is that your own figures decide it. Send us your peak flow in gallons per minute and a water test and we will check the sizing for you, at no charge, before you buy.