Frequently Asked Questions

 

A. 5900-BT series control valves are built in the U.S. and come with a Bypass Valve. It has Blue Tooth ability to program and monitor functions of the control valve from your phone or tablet as long as you are not farther than 30' away and features traditional easy to service piston and seals that will need to be rebuilt about every 2 - 3 years depending on water quality.

It is easy to do replace the piston and seals, requires no special tools, and takes about 20 minutes. It also has a flow sensor that monitors usage and provides data on water usage and backwashes etc. It has 1" in and out pipe connectors, however, it uses a standard 27mm (3/4") interior distributor tube, which works fine for most homes.

The 7500-Rev4 is manufactured by Hankscraft in Wisconsin (parts are imported from China) and has a full 1-inch inlet and outlet and has a 32mm interior distributor tube for higher flow rates with less pressure drop.

The 7500-Rev4 has a unique ceramic disc valve that lasts around 10 years and unlike the 5900-BT and other types of piston and seal kit valves (such as Fleck and Clack) does not require servicing, or changing of seals or pistons.

The control valve also has other built-in features normally found only on commercial valves such as remote control, relays for controlling pumps, and solenoid valves and has a built-in flow sensor. It can be set to backwash every 1 to 30 days or can backwash based on gallons used.
 

Both the 5900-BT and the 7500-Rev4 will maintain their programming (such as days between backwash, and length of backwash and rinse) during a power failure. The 5900-BT has an additional feature that uses a 9V battery that maintains the time of day during a power failure, and also allows the piston to move to the service position after a power failure, so when the power comes back on, the backwash does not continue.

CWS Manual backwash control valves are built for us and imported from China.
These valves feature the same heavy-duty ceramic disc as the 7500-Rev4 control but are operated entirely manual and have no power or other functions other than filter, backwash, and rinse modes.