The MV876B Automatic-Backwash Control is available as an accessory. This control is fitted to the drain valve and is programmed by the user to automatically perform the backwash function according to the desired interval.
Specifications
Description: Automatic backwash control, fits 1/2 in. to 2 in. F76S models and F74C models.
Interval Selection: 16 field selectable via keypad
Display: Digital
Backwash Intervals: 16 Adjustable intervals from 4 min to 3 months
External Control Connections: Remote Activation
Battery Backup: Yes, 4xAA
Electrical Ratings: 24 Vac, 10 W
Cycle Time: 20 Seconds
Dimensions: 6 in. high, 2-3/4 in wide, 6-5/16 in. deep
Features
Bayonet fitting simplifies upgrade to automatic backwash.
16 field-selectable backwash intervals (from every four minutes to once every three months) eliminate need for external timer.
Connections for external control on the MV876 provide for use in automated systems and differential pressure control.
MV876 can be manually activated to initiate backwash.
Battery (AA) backup to insure completion of backwash cycle in spite of power loss.
I have tried two of these units and each has failed in a matter of weeks. Worse, the failure mode is that it fails to stop, so it continuously runs a flush cycle as soon as it completes the last one, regardless of the delay setting. This wastes a LOT of water until the problem is discovered.
when working, the unit runs the flush cycle far too quickly, completing in 10-15 secs. To flush properly it needs about 30 seconds. This means you will be setting the cycle much more frequently than needed.
hfpierson
Monterey, CA
6 years ago
Was this review helpful to you?
Valve Cycles too Rapidly
Manufacturer specifications report a 25 second cycle time however, the timer controlling the motor completes one full rinse cycle in 10 seconds, with the valve in the full open position for only 2 seconds. This is not long enough to clear the accumulated debris, however manually operating the valve is effective. Hopefully this issue is unique to this unit and a smooth exchange will ensue.
Well, that's a deep subject.
Chicago
12 years ago
Verified Buyer
Was this review helpful to you?
Works fine
This eliminates the need to constantly moniter the filter.
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.