Thanks for a nice detailed response. I believe the problem you described is
the same thing I'm experiencing. Yes, by removing the refill tube from the
overflow tube, the flapper will reseal. Also, if I restrict the flow of
water at the wall by partially closing the stop valve, the flapper will
reseal. Now I need to decide how I'm going to fix it for good....

Thanks.

"Jeff Wisnia" wrote in message
news:C92dnY7BPcdak5TVnZ2dnUVZ_s-pnZ2d@choiceonecommunications...
J wrote:

After flushing the toilet, it tends to continue to run. When it is
flushed, the flapper is pulled up which allows the water to escape from
the tank, while at the same time the float falls which opens the valve to
fill the tank with water. All is well to this point.

The problem is the flapper generally doesn't go back down to the bottom
in a timely fashion to plug the escape hole, and the source water begins
to fill the tank again.

The source water apparently causes enough turbulence that it resists the
flapper from falling to the bottom. If I were to manually stop the
source water by lifting the float, the flapper drops to the bottom. I
think it would be fixed if there were some way I could adjust the float
to not allow the source valve to open until the flapper were much closer
to closing. Yet, I've adjusted the float as far as it will go and that
doesn't do it. I also think that if it were a slower flow of incoming
water, it might work.

Could it be that someone has used the wrong replacement parts? Someone
has added a 'weight' to the top of the flapper, but that doesn't really
help, and I have an objection to relying on pure Kentucky windage to fix
things.

Any help appreciated.




I had a similar problem after I replaced the old float arm valve in one of
our home toilets with a Fluidmaster valve.

There was such a strong flow of water coming through the bowl refill tube
that it was flying down the overfill pipe, splashing off the horizontal
surface below and bouncing up against the bottom of the flapper valve
enough to keep it from closing.

I diagnosed the problem for what it was and "proved it" by placing a small
C-clamp on on the refill tube and squeezing it down to reduce the flow
through it. That got the flapper working normally.

I solved the problem "fer real" by sliding a few lengths of 1/16" wire
solder inside the refill tube to create enough restriction to slow down
the flow.

When I was done (and got through patting myself on the back.) I pinged
Fluidmaster with an email describing what I'd encountered and received an
almosr immediate reply which said they knew about that problem and asking
for my postal address so they could send me a free "fix". I did that and
shortly received a little plastic restrictor with barbed fittings on each
side and instructions telling me to to cut the refill tube and stick it
in.

I never got a round tuit and the pieces of wire solder are still inside
the refill tube working just fine.

So, why not try pulling the refill tube out of the overflow tube
temporarily and see if that lets the flapper drop normally.

If it does, you can figure out the rest....

Live and learn,

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.