On Mon, 30 Jan 2017 04:14:02 GMT, Nancy
m wrote:

Stand pipe now is 39'' from bottom of washer. It overflows, so how many feet
should I raise it? or is getting a smaller hose better to control the flow?

Has it always leaked or is this new?

Either the pipe does not have the capacity or it is partly clogged and
has to be snaked out. If the discharge hose is smaller than the
standpipe, it should be able to handle the discharge.