Part # 4662-16
Manufacturer Code ECX4077B1
Dimensions 1.7" L x 1.7" W x 1.7" D
Alternate Part #'s 171501040, 72189, EC4077B1, ECX4077B1, HAY0511860
OEM check valve used on the following Hayward cartridge and D.E. filters:
Check valves prevent the backflow of chemicals to pool equipment.
How do I replace a ECX4077B1 Check Valve on a Hayward DE EC65 Filter?
Hello Bob, According to the parts breakdown this is installed on the bottom on the unit number 29, if you would like to confirm with Hayward tech support 800-657-2287.
how i can to install ecx4077b1 check valve?
Hello Vladimir, if you look at the parts list located on this manual, your check valve should be installed before 1 1/2" male union. There are no installation videos of this that I have found.
The weight fell off my check valve will this cause a pressure problem? I have to keep bumping up the filter every few hours
Hi Chris, The weight falling off of the check valve will not create a pressure problem that will cause you to keep having to bump the filter. The flex tubes could be old nd need to be replaced or cleaned thoroughly.
how do you remove the check valve
Hi Doug, To remove this check you will have to pull it out of the inlet port depending on the model of the filter you have.
If my check valve is bad will that cause my filter pressure to run high?
Hi Joe, A bad Star-Clear Check Valve (ECX4077B1) will not cause the filter pressure to run high. You probably need to have the filter thoroughly cleaned out or replaced.
Could a bad check valve cause earth to return to pool ?
Not typically. The most common cause of DE coming back into the pool is a broken ar ripped grid. The manifold could also be compromised, but that is less likely.
My Hayward 50 filter just does not filter the water and the powder seems to shoot through its only two years old and my pool is 15k gallons above ground I did the following 1. Back flushed it 2. Replaced the check valve 3. Pressure is about 7lbs steady 4. Flow is good 5. Put 5lb of powder Any recommendations
Hi Charles, I am assuming you have the Perflex EC50 DE Filter, if so then I would check the condition of your Perflex DE Fingers and replace any that are torn or damaged. Damaged DE fingers are typically the culprit when getting DE powder back in your pool.
how to install a ecx4977b1 check valve on a filter
Charles, This check valve just slides into the outlet port of the filter from the inside.