brine is not getting into the resin tank. I have tried everything i have found online to fix. there is a sucking sound coming from around the Venturi when brining but no water brine flowing in. I have cycled the backwashed about 10 times too. is it possible there could be a clog i have not tried? I have tanken appart and cleaned all the parts down to where the brine comes in the line.
Is the unit removing the brine from the salt tank area?
If the venturi is clear and there is no draw of the brine then there is a seal with in the valve that is bad and the valve body will need to be broken down and that seal replaced.
You might even need to replace the disc ..
Time and parts might be such that it is time to replace the whole unit with another cheap one like the one you are working on.