On Jan 30, 3:28*pm, NamPhong wrote:
Fairly certain have the correct answer but thought to run it past this
group for a sanity check.
When one toilet, and only one toilet, is flushed I get a water hammer
through the ice maker connection to the fridge (all pipes have been
checked and are not loose). *Do not get any hammer when other toilets
are flushed and cannot recreate the hammer by shutting off the water
rapidly at any other water outlet.
Is there any adjustment to slow down the closing of the fill valve (new
style with vertical float)in the toilet?
Is best solution to just change the fill valve.
Thanks for the assist.

Raising the height of the shut-off/fill point will not change the
rapid shut-off that causes the hammer. I would partially close the
valve in the water supply to the tank so that the rate of water going
into the tank for refillings is noticeably slower, and see if that
doesn't help. You might try greasing the rod on which the float goes
up and down, if the float is sticking, it might be sticking and then
when the pressure on the float gets high enough, the float breaks
loose and you have the quick shutoff. I don't know of any way to
make the actual shutoff slower.

Let us knowwhat happens.