I've problem with my tank overflowing even though the valve has been changed. What else could be the problem

did the plumber adjust the floating ball height that controls the valve when they replace the set?

it was overflowed and was replaced 6 months ago only the valve and was ok until recently it keep overflowing again

Normally it shouldnt happen and the only problem is whether the plumber replaced a new or a used set ?

This post has been edited by mini orchard: Jan 2 2023, 01:45 PM

So what in the last 6 months changed that the problem came back again?

The valve except the ball, has been changed?

Better call someone else to do the checking...
Possible the person u hired previously didn't do the job properly....

I ask you, then you ask me back, so who has the answer?

Since you cant diy, I suggest you buy a new complete set with the ball float and then engage a plumber to do it.

If you pay a plumber to check, the labour cost is about the same to replace.

Also tell the plumber to lower the float level.

This post has been edited by mini orchard: Jan 4 2023, 10:06 AM

My bad, it was not a question, it was a statement. I've changed the valve again, so far, it is not overflowing.