Return water dirt on high speed

[alex6999]

This happens last year, I changed sand, but it does not help.

Motor on low speed, everything OK
Switching motor to high speed and it back washing filter into pool(valve in filter position)

Back washing, switching to rinse
Low speed - water clean
High speed - water not clean(using white plastic basket to see it)

On low speed filter working and filtering. But... vaccuum almost useless on low speed.

And I have some air in return.
2 years ago it works ok, I also have air in return.

Gasket in multiport valve looks OK, replaced 4 years ago.

What I need to do?
Thanks

 

[cowboycasey]

Sounds like some of the fingers inside the filter may be broken or the gasket on the multiport has gone bad again...

On low there is no stress on the filter, On high the problem shows up..

 

[alex6999]

Fingers inside filters was ok when I replaced sand.

Also, can it be problem with spring, pressing round thing to gasket inside multiport valve?

I cant find correct seal 4 years ago, I have some clone of hayward filter and clone of hayward valve. Seal was large just little bit, and I was alve to glue it with superglue inside

So, I need to replace multiport valve I think?

 

[cowboycasey]

give inyo a call and see what they say

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[alex6999]

I am from Canada, shipping from states, costly, can have duty and brokerage.
My filter and valve had no any names or numbers on it only ranger series sticker with checkboxes 19 21 25 27..... no one is checked and real filter size 24
How inyo know what I need?

The only way to remove valve and go to store to find similar

 

[alex6999]

Looks like big spring in multiport valve is bad and does not provide pressure.

 

[alex6999]

Filter stops filtering at all, high or low speed, backwashing just was dirt a little.
Replaced filter, sand was extremely dirt, put old sand to new filter, backwashing and it was dirt, very dirt. I think this was a problem.